/**
 * Oscilloscope RLC - Styles
 * Design professionnel avec mode sombre/clair
 * UX/UI 2026 - WCAG 2.2 AAA compliant
 */

/* ========== VARIABLES CSS ========== */
:root {
    /* Couleurs principales - Charte formulaire_prompt_v2 */
    --primary: #3498db;
    --primary-dark: #2980b9;
    --primary-light: rgba(52, 152, 219, 0.1);
    --secondary: #9b59b6;
    --success: #27ae60;
    --success-light: rgba(46, 204, 113, 0.1);
    --warning: #f39c12;
    --warning-light: rgba(243, 156, 18, 0.1);
    --danger: #e74c3c;
    --danger-light: rgba(231, 76, 60, 0.1);

    /* Grays */
    --gray-50: #fafafa;
    --gray-100: #f8f9fa;
    --gray-200: #e1e8ed;
    --gray-300: #95a5a6;
    --gray-500: #555555;
    --gray-600: #2c3e50;

    /* Couleurs oscilloscope - Palette Okabe-Ito (accessible daltoniens) */
    --channel-1: #E69F00;  /* Orange */
    --channel-2: #56B4E9;  /* Bleu ciel */
    --channel-3: #009E73;  /* Vert teal */
    --channel-4: #CC79A7;  /* Rose */
    --grid-color: rgba(52, 152, 219, 0.3);
    --grid-axis: rgba(52, 152, 219, 0.6);

    /* Espacements */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Bordures */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.4s ease;

    /* Typographie */
    --font-mono: 'SF Mono', 'Monaco', 'Cascadia Code', 'Consolas', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

    /* Focus ring - WCAG 2.2 */
    --focus-ring: 0 0 0 4px var(--primary-light);
    --focus-ring-offset: 0 0 0 2px var(--bg-primary);

    /* Ombres */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(52, 152, 219, 0.15);

    /* Tailles tactiles minimum - WCAG 2.2 */
    --touch-target-min: 44px;
}

/* Thème sombre (défaut) */
[data-theme="dark"] {
    --bg-primary: #1a1f2e;
    --bg-secondary: #232936;
    --bg-card: #2a3142;
    --bg-input: #343b4d;
    --bg-hover: #3d4559;

    --text-primary: #ffffff;
    --text-secondary: #a8b2c1;
    --text-muted: #6b7a8f;

    --border-color: #3d4559;
    --border-light: #4a5568;

    --oscilloscope-bg: #0d1117;
    --oscilloscope-border: #2a3142;

    /* Couleurs schéma SVG (toujours sur fond foncé) */
    --circuit-wire: #3498db;
    --circuit-component: #ffffff;
    --circuit-label: #ffffff;
    --circuit-value: #5dade2;
    --circuit-source: #f1c40f;
    --circuit-ground: #a8b2c1;
}

/* Thème clair */
[data-theme="light"] {
    --bg-primary: var(--gray-100);
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-input: var(--gray-100);
    --bg-hover: var(--gray-200);

    --text-primary: var(--gray-600);
    --text-secondary: var(--gray-500);
    --text-muted: var(--gray-300);

    --border-color: var(--gray-200);
    --border-light: var(--gray-200);

    /* Oscilloscope fond clair */
    --oscilloscope-bg: #f8f9fa;
    --oscilloscope-border: var(--gray-200);

    --grid-color: rgba(52, 152, 219, 0.25);
    --grid-axis: rgba(52, 152, 219, 0.5);

    /* Couleurs schéma SVG sur fond clair */
    --circuit-wire: #2980b9;
    --circuit-component: var(--gray-600);
    --circuit-label: var(--gray-600);
    --circuit-value: #3498db;
    --circuit-source: #f39c12;
    --circuit-ground: var(--gray-300);
}

/* ========== RESET & BASE ========== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

/* Respect reduced motion preference - WCAG 2.2 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== FOCUS VISIBLE - WCAG 2.2 AAA ========== */
:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Skip link for keyboard users */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #000;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--spacing-md);
}

/* ========== LAYOUT ========== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 1600px;
    margin: 0 auto;
    position: relative;
}

/* Barre gradient décorative en haut */
.app-container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #27ae60, #f39c12);
    z-index: 1000;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    padding-top: calc(var(--spacing-md) + 4px); /* Espace pour la barre gradient */
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

/* Header en dark mode */
[data-theme="dark"] .app-header {
    background: var(--bg-secondary);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.app-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-right {
    display: flex;
    gap: var(--spacing-sm);
}

.app-main {
    display: grid;
    grid-template-columns: 320px 1fr 300px;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
}

/* Simulation E2E 2026-08-03 : cette page est en plein-bleed volontaire (oscilloscope-rlc.blade.php,
   .oscilloscope-wrapper margin negatif + .container-fluid sans padding), donc .app-main peut
   toucher le bord gauche reel du navigateur. La barre de partage flottante site-wide
   (.share-sidebar, master.blade.php) occupe left:12px + 40px de large = jusqu'a 52px, visible a
   partir de 992px (meme seuil qu'elle). Sans marge de securite, "Facteur de puissance" (premiere
   carte du panneau gauche) se retrouvait sous les icones. Decale le panneau gauche, jamais le
   canvas central (2e colonne), pour ne rien perdre du rendu plein-bleed voulu. */
@media (min-width: 992px) {
    .app-main {
        padding-left: calc(var(--spacing-md) + 52px);
    }
}

/* ========== SIDEBARS ========== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    /* Pas de scroll indépendant - scroll global de la page */
}

/* ========== CARDS ========== */
.card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

/* Pas d'effet hover sur l'encadré facteur de puissance */
.card-power-factor:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.card-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-component {
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.card-component.hidden {
    display: none;
}

/* Animation d'entrée pour les cartes */
@keyframes card-enter {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: card-enter var(--transition-slow) ease-out;
}

/* ========== FORMULAIRES - WCAG 2.2 ========== */
.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group:last-child {
    margin-bottom: 0;
}

/* Input avec sélecteur d'unité - Notation ingénieur */
.input-with-unit {
    display: flex;
    align-items: stretch;
    border-radius: var(--radius-md);
}

.input-with-unit input,
.input-with-unit .unit-select {
    margin: 0;
    height: var(--touch-target-min);
    min-height: var(--touch-target-min);
    box-sizing: border-box;
}

.input-with-unit input {
    flex: 1;
    min-width: 0;
    border-top-right-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
    border-right: none !important;
}

.input-with-unit .unit-select {
    flex-shrink: 0;
    width: auto;
    min-width: 55px;
    border-top-left-radius: 0 !important;
    border-bottom-left-radius: 0 !important;
    border-left: 1px solid var(--border-color) !important;
    padding: 0 24px 0 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #ffffff;
    background-color: #3a3a50;
    cursor: pointer;
    /* Flèche dropdown blanche pour mode sombre */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 6px center;
    background-size: 12px;
    transition: background-color var(--transition-fast);
}

[data-theme="light"] .input-with-unit .unit-select {
    color: #ffffff;
    background-color: #505060;
    /* Flèche dropdown blanche/grise pour mode clair */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23e0e0e0' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

.input-with-unit .unit-select:hover {
    background-color: #4a4a60;
}

[data-theme="light"] .input-with-unit .unit-select:hover {
    background-color: #606070;
}

.input-with-unit .unit-select:focus {
    border-color: var(--primary) !important;
    box-shadow: var(--focus-ring);
    z-index: 1;
}

/* Focus sur l'ensemble input + unit */
.input-with-unit:focus-within input {
    border-color: var(--primary);
}

.input-with-unit:focus-within .unit-select {
    border-color: var(--primary) !important;
}

.input-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.input-group:focus-within label {
    color: var(--primary);
}

.input-group input,
.input-group select,
.select-full {
    width: 100%;
    min-height: var(--touch-target-min);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: var(--font-mono);
    transition: all var(--transition-fast);
}

.input-group input:hover,
.input-group select:hover,
.select-full:hover {
    border-color: var(--border-light);
    background: var(--bg-hover);
}

.input-group input:focus,
.input-group select:focus,
.select-full:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--focus-ring);
    background: var(--bg-input);
}

/* Validation visuelle - Contour autour du groupe input + unité */
.input-with-unit:has(input:valid:not(:placeholder-shown)) {
    box-shadow: 0 0 0 2px var(--success);
}

.input-with-unit:has(input:invalid:not(:placeholder-shown)) {
    box-shadow: 0 0 0 2px var(--danger);
}

input[type="number"] {
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
    height: 32px;
    cursor: pointer;
}

/* ========== NUMBER SCRUBBER & MINI-SLIDER ========== */

/* Label avec scrubbing */
.scrubber-label {
    cursor: ew-resize;
    user-select: none;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.scrubber-label::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%233498db' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 9l-3 3 3 3'/%3E%3Cpath d='M19 9l3 3-3 3'/%3E%3Cline x1='2' y1='12' x2='22' y2='12'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.5;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.scrubber-label:hover::after {
    opacity: 1;
    transform: scaleX(1.1);
}

.scrubber-label:active::after {
    opacity: 1;
    transform: scaleX(1.2);
}

/* État de scrubbing actif */
body.scrubbing {
    cursor: ew-resize !important;
    user-select: none !important;
}

body.scrubbing * {
    cursor: ew-resize !important;
}

.input-group.scrubbing-active {
    z-index: 10;
}

.input-group.scrubbing-active .input-with-unit {
    box-shadow: 0 0 0 3px var(--primary), var(--shadow-md);
}

.input-group.scrubbing-active .scrubber-label {
    color: var(--primary);
}

/* Conteneur du mini-slider */
.mini-slider-container {
    position: relative;
    height: 6px;
    margin-top: 6px;
    border-radius: 3px;
    background: var(--bg-secondary);
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.15);
}

/* Barre de progression */
.mini-slider-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 3px;
    pointer-events: none;
    transition: width 0.05s ease-out;
}

/* Le slider range lui-même (invisible mais interactif) */
.mini-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    z-index: 2;
}

.mini-slider:focus {
    outline: none;
}

.mini-slider:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 3px;
}

/* Thumb du slider - WebKit */
.mini-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    cursor: ew-resize;
    margin-top: -4px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.mini-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
}

.mini-slider::-webkit-slider-thumb:active {
    transform: scale(1.1);
    background: var(--primary-dark);
}

/* Thumb du slider - Firefox */
.mini-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    cursor: ew-resize;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.mini-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
}

.mini-slider::-moz-range-thumb:active {
    transform: scale(1.1);
    background: var(--primary-dark);
}

/* Track du slider - WebKit */
.mini-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    background: transparent;
    border-radius: 3px;
}

/* Track du slider - Firefox */
.mini-slider::-moz-range-track {
    width: 100%;
    height: 6px;
    background: transparent;
    border-radius: 3px;
}

/* Thème clair */
[data-theme="light"] .mini-slider-container {
    background: #d0d0d8;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .mini-slider-progress {
    background: linear-gradient(90deg, #2980b9, #3498db);
}

[data-theme="light"] .mini-slider::-webkit-slider-thumb {
    border-color: var(--bg-card);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .mini-slider::-moz-range-thumb {
    border-color: var(--bg-card);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* Animation d'entrée pour le slider */
@keyframes slider-enter {
    from {
        opacity: 0;
        transform: scaleX(0.9);
    }
    to {
        opacity: 1;
        transform: scaleX(1);
    }
}

.mini-slider-container {
    animation: slider-enter 0.3s ease-out;
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .mini-slider-container {
        height: 8px;
        margin-top: 8px;
    }

    .mini-slider::-webkit-slider-thumb {
        width: 18px;
        height: 18px;
        margin-top: -5px;
    }

    .mini-slider::-moz-range-thumb {
        width: 18px;
        height: 18px;
    }

    .scrubber-label::after {
        width: 18px;
        height: 18px;
    }
}

/* Select amélioré */
select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%233498db' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
    appearance: none;
    -webkit-appearance: none;
}

/* ========== BOUTONS - WCAG 2.2 Touch Target ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    min-height: var(--touch-target-min);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

/* Effet ripple subtil */
.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255,255,255,0.3) 0%, transparent 70%);
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-normal);
}

.btn:active::after {
    opacity: 1;
    transform: scale(2);
    transition: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn-danger {
    background: white;
    color: var(--danger);
    border: 2px solid var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: white;
    transform: translateY(-2px);
}

.btn-small {
    min-height: 36px;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8125rem;
    margin-top: var(--spacing-sm);
}

.btn-icon {
    width: var(--touch-target-min);
    height: var(--touch-target-min);
    padding: 0;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-icon:active {
    transform: translateY(0);
}

/* Icônes (SVG inline via CSS) */
.icon-theme::before {
    content: '☀';
    font-size: 1.25rem;
}

[data-theme="dark"] .icon-theme::before {
    content: '🌙';
}

.icon-export::before {
    content: '📷';
    font-size: 1.1rem;
}

.icon-save::before {
    content: '💾';
    font-size: 1.1rem;
}

.icon-oscilloscope::before {
    content: '📊';
    font-size: 1.25rem;
}

/* ========== OSCILLOSCOPE - Premium 2026 ========== */
.oscilloscope-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.oscilloscope-container {
    position: relative;
    background: var(--oscilloscope-bg);
    border: 2px solid var(--oscilloscope-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    overflow: hidden;
    box-shadow:
        inset 0 0 40px rgba(0, 0, 0, 0.6),
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(0, 212, 255, 0.1);
    transition: all var(--transition-normal);
}

.oscilloscope-container::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}


#oscilloscope {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-md);
    background: var(--oscilloscope-bg);
}

/* Bouton réglages grille - WCAG 2.2 compliant */
.btn-grid-settings {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 44px;
    height: 44px;
    padding: 0;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
}

.btn-grid-settings:hover {
    background: rgba(0, 0, 0, 0.7);
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-grid-settings:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn-grid-settings[aria-expanded="true"] {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Bouton normaliser amplitudes */
.btn-normalize {
    position: absolute;
    top: var(--spacing-sm);
    right: calc(var(--spacing-sm) + 104px);
    width: 44px;
    height: 44px;
    padding: 0;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
}

.btn-normalize:hover {
    background: rgba(0, 0, 0, 0.7);
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-normalize:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn-normalize[aria-pressed="true"] {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Bouton plein écran */
.btn-fullscreen {
    position: absolute;
    top: var(--spacing-sm);
    right: calc(var(--spacing-sm) + 52px);
    width: 44px;
    height: 44px;
    padding: 0;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
}

.btn-fullscreen:hover {
    background: rgba(0, 0, 0, 0.7);
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-fullscreen:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Mode plein écran natif - changement d'icône */
:fullscreen .btn-fullscreen .icon-expand,
:-webkit-full-screen .btn-fullscreen .icon-expand {
    display: none;
}

:fullscreen .btn-fullscreen .icon-compress,
:-webkit-full-screen .btn-fullscreen .icon-compress {
    display: block !important;
}

/* Popover réglages grille - Design 2026 avec onglets */
.grid-settings-popover {
    position: absolute;
    top: calc(var(--spacing-sm) + 44px);
    right: var(--spacing-sm);
    width: 220px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 20;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.grid-settings-popover.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

[data-theme="dark"] .grid-settings-popover {
    background: var(--bg-card);
    border-color: var(--border-light);
}

/* Onglets segmented control */
.settings-tabs {
    display: flex;
    gap: 2px;
    padding: 6px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.settings-tab {
    flex: 1;
    padding: 6px 10px;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.settings-tab:hover {
    color: var(--text-secondary);
    background: var(--bg-input);
}

.settings-tab.active {
    color: var(--text-primary);
    background: var(--bg-card);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Panneaux de contenu */
.settings-panel {
    display: none;
    padding: var(--spacing-sm);
}

.settings-panel.active {
    display: block;
}

/* Sections compactes */
.settings-section {
    margin-bottom: var(--spacing-sm);
}

.settings-section:last-child {
    margin-bottom: 0;
}

.settings-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.settings-section-header .opacity-value {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--primary);
    min-width: 28px;
    text-align: right;
}

.settings-section-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* Slider d'opacité compact */
.opacity-slider {
    width: 100%;
    height: 3px;
    background: var(--bg-input);
    border-radius: 2px;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.opacity-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.opacity-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.opacity-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

/* Bouton reset modernisé */
.btn-settings-reset {
    display: block;
    width: calc(100% - var(--spacing-sm) * 2);
    margin: var(--spacing-xs) var(--spacing-sm) var(--spacing-sm);
    padding: 8px;
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-settings-reset:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
    border-color: var(--border-light);
}

/* Presets bicolores (fond + texte) - Cercle coupé en diagonale */
.color-presets-dual {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.color-preset-dual {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
    position: relative;
    overflow: hidden;
}

/* Effet diagonale avec les deux couleurs */
.color-preset-dual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        attr(data-bg) 0%,
        attr(data-bg) 50%,
        attr(data-text) 50%,
        attr(data-text) 100%
    );
}

/* Fallback avec les couleurs en dur (CSS ne supporte pas attr() pour background) */
.color-preset-dual[data-color="dark"] {
    background: linear-gradient(135deg, #0d1117 50%, #ffffff 50%);
}
.color-preset-dual[data-color="navy"] {
    background: linear-gradient(135deg, #1a1a2e 50%, #e0e0e0 50%);
}
.color-preset-dual[data-color="green-dark"] {
    background: linear-gradient(135deg, #0a1612 50%, #90d4a8 50%);
}
.color-preset-dual[data-color="light"] {
    background: linear-gradient(135deg, #f5f5f5 50%, #1a1a2e 50%);
    border-color: #ccc;
}
.color-preset-dual[data-color="sepia"] {
    background: linear-gradient(135deg, #f4ecd8 50%, #2d2a26 50%);
    border-color: #ccc;
}
.color-preset-dual[data-color="black"] {
    background: linear-gradient(135deg, #000000 50%, #ffffff 50%);
}
.color-preset-dual[data-color="blue-light"] {
    background: linear-gradient(135deg, #e3f2fd 50%, #0d47a1 50%);
    border-color: #ccc;
}
.color-preset-dual[data-color="mint"] {
    background: linear-gradient(135deg, #e8f5e9 50%, #1b5e20 50%);
    border-color: #ccc;
}

.color-preset-dual:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.color-preset-dual:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.color-preset-dual.active,
.color-preset-dual[aria-pressed="true"] {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--bg-card), 0 0 0 4px var(--primary);
}

/* Presets de couleur */
.color-presets {
    display: flex;
    gap: 6px;
}

.color-preset {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid rgba(0, 0, 0, 0.2);
    background: var(--preset-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .color-preset {
    border-color: rgba(255, 255, 255, 0.2);
}

.color-preset:hover {
    transform: scale(1.15);
}

.color-preset:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.color-preset.active,
.color-preset[aria-pressed="true"] {
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px var(--bg-card), 0 0 8px var(--preset-color);
}

/* Sliders du popover */
.grid-settings-row input[type="range"] {
    width: 100%;
    height: 4px;
    background: var(--bg-input);
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.grid-settings-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.grid-settings-row input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.grid-settings-row input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

/* Bouton réinitialiser grille */
.btn-grid-reset {
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-grid-reset:hover {
    background: var(--bg-input);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.btn-grid-reset:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Select du popover */
.grid-settings-row select {
    width: 100%;
    padding: 6px 8px;
    font-size: 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
}

.oscilloscope-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
}

.legend-color {
    width: 24px;
    height: 4px;
    border-radius: 2px;
    box-shadow: 0 0 8px currentColor;
}

/* ========== CONTRÔLES OSCILLOSCOPE ========== */
.oscilloscope-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.control-group label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.control-group select {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.8125rem;
    font-family: var(--font-mono);
}

.control-group input[type="range"] {
    width: 120px;
    accent-color: var(--primary);
}

#phase-value {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--primary);
    min-width: 45px;
}

/* ========== CANAUX - Enhanced 2026 ========== */
.channels-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.channel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    transition: all var(--transition-fast);
}

.channel:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.channel-1 {
    border-left-color: var(--channel-1);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(230, 159, 0, 0.05) 100%);
}
.channel-2 {
    border-left-color: var(--channel-2);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(86, 180, 233, 0.05) 100%);
}
.channel-3 {
    border-left-color: var(--channel-3);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 158, 115, 0.05) 100%);
}
.channel-4 {
    border-left-color: var(--channel-4);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(204, 121, 167, 0.05) 100%);
}

.channel-label {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.channel-1 .channel-label { color: var(--channel-1); text-shadow: 0 0 8px rgba(230, 159, 0, 0.4); }
.channel-2 .channel-label { color: var(--channel-2); text-shadow: 0 0 8px rgba(86, 180, 233, 0.4); }
.channel-3 .channel-label { color: var(--channel-3); text-shadow: 0 0 8px rgba(0, 158, 115, 0.4); }
.channel-4 .channel-label { color: var(--channel-4); text-shadow: 0 0 8px rgba(204, 121, 167, 0.4); }

/* Header du canal avec toggle */
.channel-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

/* Bouton paramètres de trace (gear) */
.channel-settings-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 6px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    margin-left: auto;
    color: var(--text-secondary);
}

.channel-settings-btn:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary);
}

.channel-settings-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.3);
}

.channel-color-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Popover paramètres de trace */
.channel-settings-popover {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    padding: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    gap: 8px;
    z-index: 100;
    min-width: 140px;
}

.channel-settings-popover.active {
    display: flex;
}

.popover-section {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.popover-section-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.color-swatches {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
}

.channel-settings-popover .color-swatch {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.channel-settings-popover .color-swatch:hover {
    transform: scale(1.15);
    border-color: var(--primary);
}

.channel-settings-popover .color-swatch.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.3);
}

/* Checkbox dans le popover */
.popover-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-primary);
    cursor: pointer;
}

.popover-checkbox input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* Toggle switch canaux */
.channel-toggle {
    position: relative;
    display: inline-block;
    width: 28px;
    height: 14px;
    cursor: pointer;
    flex-shrink: 0;
}

.channel-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.channel-toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 7px;
    transition: all var(--transition-fast);
}

.channel-toggle-slider:before {
    position: absolute;
    content: "";
    height: 10px;
    width: 10px;
    left: 1px;
    bottom: 1px;
    background-color: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.channel-toggle input:checked + .channel-toggle-slider {
    background-color: var(--secondary);
}

.channel-toggle input:checked + .channel-toggle-slider:before {
    transform: translateX(14px);
    background-color: white;
}

/* Couleur du toggle selon le canal actif */
.channel-1 .channel-toggle input:checked + .channel-toggle-slider { background-color: var(--channel-1); }
.channel-2 .channel-toggle input:checked + .channel-toggle-slider { background-color: var(--channel-2); }
.channel-3 .channel-toggle input:checked + .channel-toggle-slider { background-color: var(--channel-3); }
.channel-4 .channel-toggle input:checked + .channel-toggle-slider { background-color: var(--channel-4); }

/* Griser le canal quand désactivé */
.channel:has(.channel-toggle input:not(:checked)) .channel-signal,
.channel:has(.channel-toggle input:not(:checked)) .channel-scale,
.channel:has(.channel-toggle input:not(:checked)) .channel-label {
    opacity: 0.4;
    pointer-events: none;
}

.channel-signal,
.channel-scale {
    min-height: 36px;
    padding: var(--spacing-sm);
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.channel-signal:hover,
.channel-scale:hover {
    border-color: var(--border-light);
}

.channel-signal:focus,
.channel-scale:focus {
    border-color: var(--primary);
    box-shadow: var(--focus-ring);
}

/* Offset vertical du canal */
.channel-offset {
    margin-top: var(--spacing-xs);
    padding: 0 2px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.offset-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--border-color);
    outline: none;
    cursor: pointer;
    position: relative;
}

/* Indicateur de centre (tick mark au milieu) */
.offset-slider-wrapper {
    position: relative;
    flex: 1;
}

.offset-slider-wrapper::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 12px;
    background: var(--text-secondary);
    opacity: 0.5;
    border-radius: 1px;
    pointer-events: none;
    z-index: 1;
}

.offset-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
    z-index: 2;
}

.offset-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Feedback visuel quand le slider est au centre */
.offset-slider.at-center::-webkit-slider-thumb {
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.3);
}

.offset-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
}

.offset-slider.at-center::-moz-range-thumb {
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.3);
}

/* Bouton reset pour recentrer */
.offset-reset-btn {
    width: 32px;
    height: 32px;
    padding: 0;
    margin-left: 6px;
    background: transparent;
    font-size: 26px;
    line-height: 1;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.offset-reset-btn:hover {
    opacity: 1;
    border-color: var(--primary);
    color: var(--primary);
}

.offset-reset-btn:active {
    transform: scale(0.95);
}

/* Masquer le bouton reset quand déjà au centre */
.offset-slider.at-center + .offset-reset-btn {
    opacity: 0.3;
    pointer-events: none;
}

.channel:has(.channel-toggle input:not(:checked)) .channel-offset {
    opacity: 0.4;
    pointer-events: none;
}

/* ========== RÉSULTATS - Enhanced 2026 ========== */
.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-color);
}

.result-row:last-child {
    border-bottom: none;
}

.result-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.result-value {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 600;
    color: #3a3a50;
    transition: all var(--transition-fast);
}

[data-theme="dark"] .result-value {
    color: #b0b0c0;
}

[data-theme="dark"] .component-title {
    color: #e0e0e8;
}

.result-highlight {
    /* Pas de background highlight */
    margin-bottom: var(--spacing-sm);
}

.result-highlight .result-value {
    font-size: 1.125rem;
    font-weight: 700;
}

/* ========== MODAL ========== */
.modal {
    border: none;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 0;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);

    /* Centrage parfait pour dialog HTML5 */
    position: fixed;
    inset: 0;
    margin: auto;
    height: fit-content;
}

.modal::backdrop {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

/* Animation d'ouverture du modal */
.modal[open] {
    animation: modal-open var(--transition-normal) ease-out;
}

@keyframes modal-open {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-content {
    padding: var(--spacing-xl);
}

.modal-content h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    justify-content: flex-end;
}

/* ========== SECTION PUISSANCE HORIZONTALE (sous les canaux) ========== */
.power-section-horizontal {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.card-power-triangle-inline,
.card-pfc-inline {
    flex: 1;
    min-width: 280px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.card-title-small {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

/* PFC inline layout */
.card-pfc-inline .pfc-title-row {
    margin-bottom: var(--spacing-xs);
}

.card-pfc-inline .pfc-title-row h3 {
    margin: 0;
}

.card-pfc-inline .pfc-note {
    margin-bottom: var(--spacing-sm);
}

.pfc-controls-inline {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.pfc-controls-inline .pfc-control-group {
    flex: 1;
    min-width: 140px;
    margin-bottom: var(--spacing-xs);
}

.pfc-results-inline {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px dashed var(--border-color);
}

.pfc-result-item {
    flex: 1;
    min-width: 70px;
    text-align: center;
}

.pfc-result-item .pfc-result-label {
    display: block;
    font-size: 0.625rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 2px;
}

.pfc-result-item .pfc-result-value {
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.card-pfc-inline .pfc-status {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs);
    font-size: 0.6875rem;
}

/* ========== TRIANGLE DES PUISSANCES ========== */
.card-power-triangle {
    padding: var(--spacing-md);
}

.power-triangle-container {
    display: flex;
    justify-content: center;
    padding: var(--spacing-md) 0;
    min-height: 100px;
}

.power-triangle-svg {
    width: 100%;
    max-width: 220px;
    height: auto;
    overflow: visible;
}

/* Lignes du triangle */
.power-triangle-svg .line-p {
    stroke: var(--success);
    stroke-width: 3;
    stroke-linecap: round;
}

.power-triangle-svg .line-q {
    stroke: var(--warning);
    stroke-width: 3;
    stroke-linecap: round;
}

.power-triangle-svg .line-s {
    stroke: var(--primary);
    stroke-width: 3;
    stroke-linecap: round;
}

/* Arc de l'angle phi */
.power-triangle-svg .arc-phi {
    stroke: var(--text-secondary);
    stroke-width: 1.5;
    fill: none;
}

/* Labels du triangle */
.power-triangle-svg .label {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
}

.power-triangle-svg .label-p { fill: var(--success); }
.power-triangle-svg .label-q { fill: var(--warning); }
.power-triangle-svg .label-s { fill: var(--primary); }
.power-triangle-svg .label-phi { fill: var(--text-secondary); font-size: 10px; }

/* Valeurs P, Q, S sous le triangle */
.power-values {
    display: flex;
    justify-content: space-around;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-sm);
}

.power-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.power-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.power-p .power-label { color: var(--success); }
.power-q .power-label { color: var(--warning); }
.power-s .power-label { color: var(--primary); }

.power-value {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-primary);
}

/* Section PFC */
.pfc-section {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, transparent 100%);
    border-radius: var(--radius-md);
    margin: var(--spacing-sm) calc(-1 * var(--spacing-md));
    padding: var(--spacing-md);
}

[data-theme="dark"] .pfc-section {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.12) 0%, transparent 100%);
}

.pfc-divider {
    height: 1px;
    background: linear-gradient(90deg, var(--secondary), transparent);
    margin-bottom: var(--spacing-sm);
}

.pfc-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.pfc-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Toggle switch PFC */
.pfc-toggle {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 20px;
    cursor: pointer;
}

.pfc-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.pfc-toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all var(--transition-fast);
}

.pfc-toggle-slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.pfc-toggle input:checked + .pfc-toggle-slider {
    background-color: var(--secondary);
    border-color: var(--secondary);
}

.pfc-toggle input:checked + .pfc-toggle-slider:before {
    transform: translateX(20px);
    background-color: white;
}

.pfc-note {
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

/* Contenu PFC masquable */
.pfc-content {
    transition: all var(--transition-normal);
}

.pfc-content.pfc-disabled {
    opacity: 0.4;
    pointer-events: none;
    max-height: 0;
    overflow: hidden;
    margin: 0;
}

/* Contrôles PFC */
.pfc-control-group {
    margin-bottom: var(--spacing-md);
}

.pfc-control-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.pfc-slider-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pfc-slider-row input[type="range"] {
    flex: 1;
    accent-color: var(--secondary);
    height: 6px;
}

.pfc-slider-row input[type="number"] {
    width: 60px;
    padding: 4px 8px;
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    text-align: center;
}

.pfc-slider-row input[type="number"]:focus {
    border-color: var(--secondary);
    outline: none;
}

.pfc-unit {
    font-size: 0.75rem;
    color: var(--secondary);
    font-weight: 600;
}

.pfc-capacitor-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pfc-capacitor-row input[type="number"] {
    flex: 1;
    min-width: 0;
    padding: 6px 8px;
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

.pfc-capacitor-row input[type="number"]:focus {
    border-color: var(--secondary);
    outline: none;
}

.pfc-capacitor-row input[type="number"]::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.pfc-unit-select {
    padding: 6px 24px 6px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    min-height: auto;
}

.pfc-auto-btn {
    padding: 6px 10px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--secondary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pfc-auto-btn:hover {
    background: #8b5cf6;
    transform: translateY(-1px);
}

.pfc-auto-btn:active {
    transform: translateY(0);
}

.pfc-capacitor-hint {
    display: block;
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-family: var(--font-mono);
}

/* Résultats PFC */
.pfc-results {
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(124, 58, 237, 0.2);
}

.pfc-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
}

.pfc-result-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.pfc-result-value {
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-primary);
}

.pfc-result-value.pfc-success {
    color: var(--success);
}

.pfc-savings-row {
    margin-top: var(--spacing-xs);
    padding-top: var(--spacing-xs);
    border-top: 1px dashed rgba(124, 58, 237, 0.2);
}

.pfc-savings-row .pfc-result-value {
    font-size: 0.9375rem;
    font-weight: 700;
}

/* Indicateur de statut PFC */
.pfc-status {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-fast);
}

.pfc-status:empty {
    display: none;
}

.pfc-status-optimal {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.pfc-status-under {
    background: rgba(251, 191, 36, 0.15);
    color: var(--warning);
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.pfc-status-over {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Triangle des puissances - lignes corrigées */
.power-triangle-svg .line-q-new {
    stroke: #F0E442;
    stroke-width: 2.5;
    stroke-linecap: round;
}

.power-triangle-svg .line-s-new {
    stroke: #0072B2;
    stroke-width: 2.5;
    stroke-linecap: round;
}

/* ========== SECTIONS COLLAPSIBLES ========== */
.card-toggle {
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color var(--transition-fast);
}

.toggle-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal);
}

.toggle-icon::before {
    content: '';
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(-45deg);
    transition: transform var(--transition-normal);
}

.card-toggle[data-collapsed="true"] .toggle-icon::before {
    transform: rotate(45deg);
}

.card-content {
    overflow: hidden;
    transition: max-height var(--transition-normal), opacity var(--transition-normal);
    max-height: 1000px;
    opacity: 1;
}

.card-toggle[data-collapsed="true"] + .card-content {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    margin-top: 0;
}

/* Groupe de composants */
.card-components-group {
    padding: var(--spacing-md);
}

.card-components-group .card-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.component-section {
    padding-top: var(--spacing-xs);
    border-top: 1px solid var(--border-color);
}

.component-section:first-child {
    border-top: none;
    padding-top: 0;
}

.component-section.hidden {
    display: none;
}

.component-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: #000000;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1400px) {
    .app-main {
        grid-template-columns: 280px 1fr 260px;
    }
}

@media (max-width: 1200px) {
    .app-main {
        grid-template-columns: 260px 1fr 240px;
    }
}

@media (max-width: 1024px) {
    .app-main {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
    }

    .sidebar {
        max-height: none;
        overflow: visible;
    }

    .sidebar-left {
        order: 2;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .oscilloscope-section {
        order: 1;
    }

    .sidebar-right {
        order: 3;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .channels-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .app-title {
        font-size: 1rem;
    }

    .app-main {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .sidebar-left,
    .sidebar-right {
        grid-template-columns: 1fr;
    }

    .channels-grid {
        grid-template-columns: 1fr 1fr;
    }

    .oscilloscope-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .control-group {
        justify-content: space-between;
    }

    .control-group input[type="range"] {
        flex: 1;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .header-right {
        gap: var(--spacing-xs);
    }

    .btn-icon {
        width: 36px;
        height: 36px;
    }

    .channels-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== ANIMATIONS ========== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.calculating .result-value {
    animation: pulse 1s infinite;
}

/* ========== UTILITAIRES ========== */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========== IFRAME OPTIMISATIONS ========== */
body.in-iframe {
    min-height: auto;
}

body.in-iframe .app-container {
    min-height: auto;
}

/* ========== MENU POPUP FLOTTANT ========== */
.btn-menu-trigger {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
}

.btn-menu-trigger:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    transform: scale(1.05);
}

.btn-menu-trigger:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn-menu-trigger[aria-expanded="true"] {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.menu-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.menu-popup {
    position: fixed;
    top: calc(var(--spacing-md) + 56px);
    right: var(--spacing-md);
    width: 280px;
    max-width: calc(100vw - 32px);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.95);
    transition: all var(--transition-fast);
}

.menu-popup.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.menu-popup-content {
    padding: var(--spacing-sm);
}

.menu-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9375rem;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.menu-item:hover {
    background: var(--bg-hover);
}

.menu-item:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
}

.menu-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.menu-item:hover .menu-icon {
    color: var(--primary);
}

.menu-label {
    flex: 1;
}

.menu-badge {
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.menu-badge:empty,
.menu-badge[data-count="0"] {
    display: none;
}

.menu-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xs) 0;
}

.menu-notice {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xs);
}

.menu-notice svg {
    flex-shrink: 0;
    margin-top: 2px;
    opacity: 0.7;
}

/* Theme icons */
[data-theme="dark"] .menu-popup .icon-sun { display: block; }
[data-theme="dark"] .menu-popup .icon-moon { display: none; }
[data-theme="light"] .menu-popup .icon-sun { display: none; }
[data-theme="light"] .menu-popup .icon-moon { display: block; }

/* ========== LAYOUT SANS HEADER ========== */
.app-main-no-header {
    padding-top: var(--spacing-lg);
}

/* Ajuster position du gradient décoratif */
.app-container::before {
    height: 3px;
}

/* ========== MODAL CIRCUITS ========== */
.modal-circuits {
    max-width: 500px;
}

.circuits-list {
    max-height: 400px;
    overflow-y: auto;
    margin: var(--spacing-md) 0;
}

.circuit-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-input);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.circuit-item:hover {
    background: var(--bg-hover);
}

.circuit-item-info {
    flex: 1;
    min-width: 0;
}

.circuit-item-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.circuit-item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.circuit-item-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.circuit-item-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.circuit-item-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.circuit-item-btn.btn-load:hover {
    color: var(--primary);
}

.circuit-item-btn.btn-delete:hover {
    color: var(--danger);
}

.circuits-empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.circuits-empty svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* ========== TOAST NOTIFICATIONS ========== */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: toast-in var(--transition-normal) ease-out;
    max-width: 350px;
}

.toast.toast-success {
    border-color: var(--success);
}

.toast.toast-error {
    border-color: var(--danger);
}

.toast-icon {
    flex-shrink: 0;
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-error .toast-icon {
    color: var(--danger);
}

.toast-message {
    flex: 1;
    font-size: 0.9375rem;
}

.toast-close {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.toast-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

.toast.hiding {
    animation: toast-out var(--transition-fast) ease-in forwards;
}

/* ========== PRINT ========== */
@media print {
    .app-header,
    .sidebar-left,
    .oscilloscope-controls,
    .channels-grid,
    .modal {
        display: none !important;
    }

    .app-main {
        grid-template-columns: 1fr 1fr;
    }

    .oscilloscope-section {
        grid-column: 1 / -1;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}

/* ========== ONGLETS (TABS) - Modern 2026 ========== */
.main-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-card);
    padding: 6px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .tabs {
    background: var(--bg-card);
}

.tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    min-height: var(--touch-target-min);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.tab.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md), 0 0 16px rgba(52, 152, 219, 0.3);
}


.tab-icon {
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.tab:hover .tab-icon {
    transform: scale(1.1);
}

.tab.active .tab-icon {
    stroke: white;
}

.tab-panel {
    display: none;
    animation: tab-fade-in var(--transition-normal) ease-out;
}

@keyframes tab-fade-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-panel.active {
    display: block;
}

/* ========== SCHÉMA DU CIRCUIT ========== */
.circuit-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.circuit-diagram {
    background: var(--oscilloscope-bg);
    border: 2px solid var(--oscilloscope-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        inset 0 0 30px rgba(0, 0, 0, 0.5),
        0 4px 20px rgba(0, 0, 0, 0.3);
}

.circuit-diagram svg {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
}

/* Styles SVG du circuit - couleurs optimisées pour fond foncé */
.circuit-diagram .wire {
    stroke: var(--circuit-wire);
    stroke-width: 2.5;
    fill: none;
}

.circuit-diagram .component {
    stroke: var(--circuit-component);
    stroke-width: 2.5;
    fill: none;
}

.circuit-diagram .component-fill {
    fill: var(--oscilloscope-bg);
}

.circuit-diagram .label {
    fill: var(--circuit-label);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    text-anchor: middle;
}

.circuit-diagram .value {
    fill: var(--circuit-value);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    text-anchor: middle;
}

.circuit-diagram .source-symbol {
    stroke: var(--circuit-source);
    stroke-width: 3;
    fill: none;
}

.circuit-diagram .ground {
    stroke: var(--circuit-ground);
    stroke-width: 2.5;
}

/* Points de mesure oscilloscope */
.circuit-diagram .probe-point {
    fill: transparent;
    stroke: transparent;
    stroke-width: 2;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.circuit-diagram .probe-point.active {
    fill: var(--channel-1);
    stroke: var(--channel-1);
    filter: drop-shadow(0 0 6px var(--channel-1));
}

.circuit-diagram .probe-point.channel-1.active {
    fill: var(--channel-1);
    stroke: var(--channel-1);
    filter: drop-shadow(0 0 6px var(--channel-1));
}

.circuit-diagram .probe-point.channel-2.active {
    fill: var(--channel-2);
    stroke: var(--channel-2);
    filter: drop-shadow(0 0 6px var(--channel-2));
}

.circuit-diagram .probe-point.channel-3.active {
    fill: var(--channel-3);
    stroke: var(--channel-3);
    filter: drop-shadow(0 0 6px var(--channel-3));
}

.circuit-diagram .probe-point.channel-4.active {
    fill: var(--channel-4);
    stroke: var(--channel-4);
    filter: drop-shadow(0 0 6px var(--channel-4));
}

/* Animation pulsation des sondes */
@keyframes probe-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.7;
    }
}

.circuit-diagram .probe-point.active {
    animation: probe-pulse 1.5s ease-in-out infinite;
    transform-origin: center;
}

/* Légende des sondes */
.circuit-info {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.probe-legend h3 {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

#probe-indicators {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.probe-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

.probe-indicator .probe-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.probe-indicator.channel-1 .probe-dot { background: var(--channel-1); }
.probe-indicator.channel-2 .probe-dot { background: var(--channel-2); }
.probe-indicator.channel-3 .probe-dot { background: var(--channel-3); }
.probe-indicator.channel-4 .probe-dot { background: var(--channel-4); }

/* Responsive onglets */
@media (max-width: 768px) {
    .tab {
        padding: var(--spacing-sm);
        font-size: 0.8125rem;
    }

    .tab-icon {
        width: 16px;
        height: 16px;
    }

    .circuit-diagram {
        min-height: 300px;
        padding: var(--spacing-md);
    }
}