/**
 * Use Cases Page Styles
 * Following BEM methodology and mobile-first approach
 */

/* ===== NAVIGATION STYLES ===== */
/* Navigation - Identical to home.styles.css */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 19px 5%;
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

/* Light mode nav - White background */
body:not(.dark-mode) nav {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--pearl-mid);
}

/* Dark mode nav - Dark background */
body.dark-mode nav {
    background: rgba(10, 10, 10, 0.95);
    border-bottom: 1px solid rgba(220, 38, 38, 0.1);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* ===== LOGO STYLES ===== */
.logo {
    display: flex;
    align-items: center;
    gap: 3px;  /* Réduit encore (6px → 3px) */
    text-decoration: none;
    outline: none;
}

.logo:focus,
.logo:active {
    outline: none;
    box-shadow: none;
}

.logo-icon {
    width: 75px;  /* Agrandi de 1.5x (50px → 75px) */
    height: 75px; /* Agrandi de 1.5x (50px → 75px) */
    transition: all 0.3s ease;
}

.logo-text {
    font-family: 'Audiowide', var(--font-family);
    font-size: 26px;  /* Augmenté de 2pt (24px → 26px) */
    font-weight: 400;  /* Audiowide n'a qu'un seul poids */
    color: var(--red-dark);
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

body.dark-mode .logo-text {
    color: var(--red-light);
}

/* Responsive mobile - logo réduit uniformisé */
@media (max-width: 968px) {
    .logo {
        gap: 4px;
        margin-left: -0.5rem;
    }

    .logo-icon {
        width: 45px !important;
        height: 45px !important;
    }

    .logo-text {
        font-size: 16px !important;
        letter-spacing: 2px;
    }

    .nav-container {
        padding-left: 0.5rem !important;
        padding-right: 1rem !important;
    }

    .nav-right .nav-links {
        display: none;
    }

    .nav-right .nav-theme-switcher {
        display: none;
    }

    .mobile-menu__btn {
        display: block;
    }
}

/* ===== NAV LINKS STYLES ===== */
.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: 15px;
    transition: all var(--transition-fast);
    position: relative;
    letter-spacing: 0.5px;
}

body.dark-mode .nav-links a {
    color: #a1a1aa;
}

.nav-links a:hover {
    color: var(--red-dark);
}

body.dark-mode .nav-links a:hover {
    color: var(--red-light);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--red-mid);
    transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* ===== THEME SWITCHER ===== */
.nav-theme-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
}


/* ===== TOGGLE BUTTON STYLES ===== */
.theme-toggle {
    position: relative;
    width: 60px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    outline: none;
}

.toggle-track {
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    position: relative;
    transition: background 0.3s ease;
}

body.dark-mode .toggle-track,
[data-theme="dark"] .toggle-track {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.toggle-thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

body.dark-mode .toggle-thumb,
[data-theme="dark"] .toggle-thumb {
    transform: translateX(30px);
}

/* Activer la transition uniquement après le chargement */
body.theme-loaded .toggle-thumb {
    transition: transform 0.3s ease;
}

.toggle-icon {
    font-size: 14px;
    line-height: 1;
}

.theme-toggle:hover .toggle-track {
    opacity: 0.9;
}

.theme-toggle:focus {
    outline: 2px solid var(--grenat-primary);
    outline-offset: 2px;
}


/* ===== UTILITY CLASSES (remplacement Tailwind) ===== */
.max-w-container {
    max-width: 1400px;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.px-8 {
    padding-left: 2rem;
    padding-right: 2rem;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 40vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 4rem 2rem;
    margin-top: 113px;
    position: relative;
    overflow: hidden;
    transition: background-color var(--transition-medium);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(220, 38, 38, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: 24px;
    line-height: 1.2;
    transition: color var(--transition-medium);
}

.hero-title span {
    color: var(--red-light);
    background: linear-gradient(135deg, var(--red-dark) 0%, var(--red-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    transition: color var(--transition-medium);
}

/* ===== USE CASES CONTAINER ===== */
.usecases-container {
    padding: var(--section-padding) 0;
    min-height: 50vh;
}

/* ===== USE CASE SECTION ===== */
.usecase-section {
    margin-bottom: 80px;
    background: var(--bg-card);
    border: 1px solid var(--pearl-mid);
    border-radius: 12px;
    padding: 60px;
    transition: all var(--transition-medium);
}

.usecase-header {
    margin-bottom: 40px;
}

.usecase-title {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: 12px;
    transition: color var(--transition-medium);
}

.usecase-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.6;
    transition: color var(--transition-medium);
}

.usecase-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.usecase-description h3 {
    font-size: 20px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: 12px;
    margin-top: 24px;
    transition: color var(--transition-medium);
}

.usecase-description h3:first-child {
    margin-top: 0;
}

.usecase-description p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    transition: color var(--transition-medium);
}

.usecase-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.usecase-benefits li {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 28px;
    position: relative;
    margin-bottom: 12px;
    transition: color var(--transition-medium);
}

.usecase-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--red-light);
    font-weight: var(--font-weight-bold);
    font-size: 18px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.chart-header h3 {
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0;
    transition: color var(--transition-medium);
}

.chart-controls {
    display: flex;
    gap: 12px;
    align-items: center;
}

.chart-controls-center {
    background: var(--bg-card);
    border: 1px solid var(--pearl-mid);
    border-radius: 8px;
    padding: 24px;
    margin: 30px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: all var(--transition-medium);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.control-label {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: color var(--transition-medium);
}

/* ===== DRIFT STATUS BAND ===== */
.drift-status-container {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.drift-status-label {
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.drift-status-band {
    width: 100%;
    height: 50px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.drift-status-band[data-state="normal"] {
    background: #f5f5f4;
    border-color: #e7e5e4;
}

.drift-status-band[data-state="drift"] {
    background: #fecaca;
    border-color: #ef4444;
    animation: pulse-red 1.5s ease-in-out infinite;
}

.drift-status-band[data-state="corrected"] {
    background: #bbf7d0;
    border-color: #22c55e;
}

.drift-status-text {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.drift-status-band[data-state="drift"] .drift-status-text {
    color: #dc2626;
}

.drift-status-band[data-state="corrected"] .drift-status-text {
    color: #16a34a;
}

@keyframes pulse-red {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Dark mode */
body.dark-mode .drift-status-band[data-state="normal"] {
    background: #27272a;
    border-color: #3f3f46;
}

body.dark-mode .drift-status-band[data-state="drift"] {
    background: #7f1d1d;
    border-color: #dc2626;
}

body.dark-mode .drift-status-band[data-state="corrected"] {
    background: #14532d;
    border-color: #22c55e;
}

body.dark-mode .drift-status-text {
    color: var(--text-primary);
}

body.dark-mode .drift-status-band[data-state="drift"] .drift-status-text {
    color: #fca5a5;
}

body.dark-mode .drift-status-band[data-state="corrected"] .drift-status-text {
    color: #86efac;
}

.control-label-checkbox {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: color var(--transition-medium);
}

.control-label-checkbox:hover {
    color: var(--text-primary);
}

.mean-input {
    width: 100px;
    padding: 8px 12px;
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--pearl-mid);
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.mean-input:focus {
    outline: none;
    border-color: var(--red-light);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.mean-input:hover {
    border-color: var(--red-mid);
}

body.dark-mode .mean-input {
    background: rgba(30, 30, 33, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
}

.checkbox-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--red-light);
}

.chart-container {
    background: var(--bg-primary);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--pearl-mid);
    transition: all var(--transition-medium);
}

/* Canvas specific styling */
#interferenceHeatmap {
    width: 100%;
    height: auto;
    max-width: 750px;
    cursor: crosshair;
}

/* ===== SELECT INPUT STYLES ===== */
.select-input {
    width: 350px;
    padding: 8px 12px;
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--pearl-mid);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.select-input:focus {
    outline: none;
    border-color: var(--red-light);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.select-input:hover {
    border-color: var(--red-mid);
}

body.dark-mode .select-input {
    background: rgba(30, 30, 33, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
}

/* ===== HEATMAP LEGEND ===== */
.heatmap-legend {
    margin-top: 20px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--pearl-mid);
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.legend-title {
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.legend-gradient {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 200px;
}

.gradient-bar {
    flex: 1;
    height: 20px;
    border-radius: 4px;
    background: linear-gradient(90deg,
        #a50026 0%,      /* Rouge foncé */
        #d73027 12%,     /* Rouge vif */
        #f46d43 25%,     /* Orange-rouge */
        #fdae61 37%,     /* Orange clair */
        #fee090 50%,     /* Jaune pâle */
        #abd9e9 65%,     /* Bleu clair */
        #74add1 80%,     /* Bleu moyen */
        #4575b4 100%     /* Bleu foncé */
    );
    border: 1px solid var(--pearl-mid);
}

.legend-label {
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.legend-desc {
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
}

/* ===== FORECAST STYLES ===== */
.forecast-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 20px;
    padding: 15px;
    background: var(--bg-secondary);
    border-radius: 8px;
}


.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--red-dark);
}

body.dark-mode .stat-value {
    color: var(--red-light);
}

body.dark-mode .forecast-stats {
    background: var(--bg-card);
}

@media (max-width: 768px) {
    .forecast-stats {
        flex-direction: column;
        gap: 15px;
    }
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    margin-top: 80px;
    border-top: 1px solid var(--pearl-mid);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    font-size: 20px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: 20px;
    transition: color var(--transition-medium);
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    transition: color var(--transition-medium);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--red-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--pearl-mid);
    transition: border-color var(--transition-medium);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 14px;
    transition: color var(--transition-medium);
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* Mobile Large (480px+) */
@media (min-width: 480px) {
    .hero-title {
        font-size: 54px;
    }

    .hero-subtitle {
        font-size: 22px;
    }
}

/* Tablet (768px+) */
@media (min-width: 768px) {
    .hero {
        min-height: 70vh;
    }

    .hero-title {
        font-size: 64px;
    }

    .hero-subtitle {
        font-size: 24px;
    }

    .placeholder-content h2 {
        font-size: 36px;
    }

    .placeholder-content p {
        font-size: 20px;
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .hero-title {
        font-size: 72px;
    }

    .usecases-container {
        padding: var(--section-padding-desktop) 0;
    }
}

/* Large Desktop (1400px+) */
@media (min-width: 1400px) {
    .hero-title {
        font-size: 80px;
    }
}

/* Mobile specific adjustments */
@media (max-width: 767px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .usecase-section {
        padding: 40px 20px;
    }

    .usecase-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .usecase-title {
        font-size: 28px;
    }

    /* Corrections débordements containers - Mobile */
    .chart-container {
        padding: 15px 10px;
        margin: 0 -10px;
        border-radius: 6px;
        overflow-x: auto;
    }

    .select-input {
        width: 100%;
        max-width: 100%;
    }

    #interferenceHeatmap {
        max-width: 100%;
    }

    canvas {
        max-width: 100% !important;
        height: auto !important;
    }
}