/* ============================================
   CICF Visio — Plateforme de visioconférence
   Charte graphique : #e91e63 (primaire), #2027bc → #6243a7 (dégradé)
   Polices : Roboto Slab (titres), Roboto (corps)
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #e91e63;
    --primary-dark: #c2185b;
    --secondary: #2027bc;
    --gradient-start: #2027bc;
    --gradient-end: #6243a7;
    --bg: #f5f5f5;
    --bg-card: #ffffff;
    --text: #333333;
    --text-light: #666666;
    --text-white: #ffffff;
    --font-heading: 'Roboto Slab', serif;
    --font-body: 'Roboto', sans-serif;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* --- Header --- */
.header {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-white);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-logo img {
    height: 48px;
    width: auto;
}

.header-logo span {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
}

.header-nav a {
    color: var(--text-white);
    margin-left: 1.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
    transition: opacity var(--transition);
}

.header-nav a:hover {
    opacity: 1;
    color: var(--text-white);
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-white);
    text-align: center;
    padding: 4rem 2rem;
}

.hero-logo {
    height: 80px;
    width: auto;
    margin-bottom: 1rem;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 500px;
    margin: 0 auto 2rem;
}

/* --- Room Form --- */
.room-form {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 520px;
    margin: -2rem auto 2rem;
    box-shadow: var(--shadow);
    position: relative;
    z-index: 10;
}

.room-form label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text);
    font-size: 0.95rem;
}

.room-form .input-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.room-form input[type="text"] {
    flex: 1;
    padding: 0.85rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: border-color var(--transition);
    outline: none;
}

.room-form input[type="text"]:focus {
    border-color: var(--primary);
}

.btn-random {
    background: var(--bg);
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 1.2rem;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
    line-height: 1;
}

.btn-random:hover {
    border-color: var(--primary);
    background: #fce4ec;
}

.btn-primary {
    display: inline-block;
    width: 100%;
    padding: 1rem;
    margin-top: 1rem;
    background: var(--primary);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.05rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 15px rgba(233,30,99,0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(233,30,99,0.4);
}

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

.btn-secondary {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all var(--transition);
}

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

/* --- How it works --- */
.how-it-works {
    padding: 3rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.how-it-works h2 {
    font-family: var(--font-heading);
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--text);
}

.steps {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-white);
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.step h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* --- Footer --- */
.footer {
    background: #222;
    color: #aaa;
    text-align: center;
    padding: 2rem;
    margin-top: auto;
    font-size: 0.9rem;
}

.footer a {
    color: #e91e63;
}

.footer a:hover {
    color: #ff4081;
}

.footer-contact {
    margin-bottom: 1rem;
}

.footer-contact p {
    margin: 0.25rem 0;
}

/* ============================================
   PAGE SALLE (Room)
   ============================================ */

.room-page {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* --- Pre-join --- */
.prejoin {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

.prejoin-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2.5rem;
    max-width: 420px;
    width: 100%;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.prejoin-card h2 {
    font-family: var(--font-heading);
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.prejoin-card .room-name-display {
    text-align: center;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    word-break: break-all;
}

.prejoin-card .form-group {
    margin-bottom: 1.25rem;
}

.prejoin-card label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.prejoin-card input[type="text"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: border-color var(--transition);
    outline: none;
}

.prejoin-card input[type="text"]:focus {
    border-color: var(--primary);
}

.toggle-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.toggle-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    cursor: pointer;
    font-size: 0.9rem;
    font-family: var(--font-body);
    transition: all var(--transition);
}

.toggle-btn.active {
    border-color: var(--primary);
    background: #fce4ec;
}

.toggle-btn .icon {
    font-size: 1.2rem;
}

.prejoin-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.prejoin-actions .btn-primary {
    flex: 1;
    margin-top: 0;
}

.prejoin-actions .btn-secondary {
    flex: 0 0 auto;
}

/* --- Jitsi Container --- */
.jitsi-wrapper {
    flex: 1;
    display: none;
    position: relative;
    background: #111;
}

.jitsi-wrapper.active {
    display: flex;
    flex-direction: column;
}

#jitsi-container {
    flex: 1;
    width: 100%;
    min-height: 0;
}

/* --- Room Toolbar --- */
.room-toolbar {
    background: #1a1a1a;
    color: var(--text-white);
    padding: 0.6rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
}

.room-toolbar .room-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.room-toolbar .room-info .label {
    color: #888;
    font-weight: 400;
}

.room-toolbar .actions {
    display: flex;
    gap: 0.5rem;
}

.room-toolbar .actions button {
    padding: 0.5rem 1rem;
    border: 1px solid #444;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-white);
    cursor: pointer;
    font-size: 0.85rem;
    font-family: var(--font-body);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.room-toolbar .actions button:hover {
    background: #333;
    border-color: var(--primary);
}

.btn-quit {
    background: #e53935 !important;
    border-color: #e53935 !important;
}

.btn-quit:hover {
    background: #c62828 !important;
}

/* --- Waiting overlay --- */
.waiting-overlay {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    z-index: 100;
    pointer-events: none;
}

.waiting-overlay.active {
    display: flex;
}

.waiting-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem 2.5rem;
    text-align: center;
    max-width: 360px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    animation: pulse 2s ease-in-out infinite;
}

.waiting-card .spinner {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.waiting-card h3 {
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
}

.waiting-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

/* --- Modal --- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    text-align: center;
}

.modal h3 {
    font-family: var(--font-heading);
    margin-bottom: 1rem;
}

.modal .qrcode-container {
    display: flex;
    justify-content: center;
    margin: 1.5rem 0;
}

.modal .invite-link {
    background: var(--bg);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    word-break: break-all;
    margin-bottom: 1rem;
    border: 1px solid #e0e0e0;
}

.modal-close {
    margin-top: 0.5rem;
    padding: 0.5rem 2rem;
    background: var(--bg);
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-body);
    transition: background var(--transition);
}

.modal-close:hover {
    background: #e0e0e0;
}

/* --- Toast notification --- */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: var(--text-white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 2000;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.toast.show {
    opacity: 1;
}

/* --- 404 Page --- */
.page-404 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    text-align: center;
    padding: 2rem;
}

.page-404 h1 {
    font-family: var(--font-heading);
    font-size: 5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.page-404 p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .hero h1 { font-size: 1.8rem; }
    .hero { padding: 3rem 1.5rem; }
    .hero-logo { height: 60px; }
    .room-form { margin: -1.5rem 1rem 1.5rem; }
    .steps { flex-direction: column; align-items: center; }
    .step { max-width: 100%; }

    .prejoin { padding: 1rem; }
    .prejoin-card { padding: 1.5rem; }
    .toggle-group { flex-direction: column; }

    .room-toolbar { flex-direction: column; align-items: stretch; text-align: center; }
    .room-toolbar .actions { justify-content: center; }

    .header { padding: 0.75rem 1rem; }
    .header-logo img { height: 36px; }
    .header-logo span { font-size: 1rem; }
}

@media (max-width: 480px) {
    .room-form .input-group {
        flex-direction: column;
    }
    .btn-random {
        width: 100%;
    }
    .prejoin-actions {
        flex-direction: column;
    }
}