/* ============================================
   CSS Microsoft Fluent Design - Style Institutionnel
   Salle WebRTC intégrée ANRDI
   ============================================ */

/* ---------- Variables CSS (Thème Microsoft) ---------- */
:root {
    /* Couleurs principales (Microsoft Fluent Design) */
    --ms-primary: #0078d4;
    /* Bleu Microsoft */
    --ms-primary-light: #106ebe;
    /* Bleu clair */
    --ms-primary-dark: #005a9e;
    /* Bleu foncé */
    --ms-text: #212121;
    /* Texte principal */
    --ms-text-secondary: #605e5c;
    /* Texte secondaire */
    --ms-bg: #f5f5f5;
    /* Fond principal */
    --ms-surface: #ffffff;
    /* Surface (cartes, conteneurs) */
    --ms-border: #e0e0e0;
    /* Bordures */
    --ms-border-light: #f0f0f0;
    /* Bordures légères */

    /* Couleurs sémantiques */
    --ms-success: #107c10;
    /* Vert succès */
    --ms-warning: #ffaa44;
    /* Orange avertissement */
    --ms-error: #d13438;
    /* Rouge erreur */

    /* Ombres (subtiles, style Microsoft) */
    --ms-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --ms-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --ms-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.14);

    /* Bordures */
    --ms-radius-sm: 4px;
    --ms-radius-md: 8px;
    --ms-radius-lg: 12px;

    /* Typographie */
    --ms-font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --ms-font-size-sm: 12px;
    --ms-font-size-md: 14px;
    --ms-font-size-lg: 16px;
    --ms-font-size-xl: 18px;
    --ms-font-size-xxl: 20px;
    --ms-font-weight-regular: 400;
    --ms-font-weight-semibold: 600;
    --ms-font-weight-bold: 700;

    /* Espacements */
    --ms-spacing-xs: 4px;
    --ms-spacing-sm: 8px;
    --ms-spacing-md: 12px;
    --ms-spacing-lg: 16px;
    --ms-spacing-xl: 20px;
    --ms-spacing-xxl: 24px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    height: 100%;
}

body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    font-family: var(--ms-font-family);
    font-size: var(--ms-font-size-md);
    line-height: 1.5;
    color: var(--ms-text);
    background-color: var(--ms-bg);
    margin: 0;
    padding: 0;
}

main {
    flex: 1 0 auto;
}

/* Typographie */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--ms-font-weight-semibold);
    line-height: 1.4;
    color: var(--ms-text);
    margin-bottom: var(--ms-spacing-md);
}

h1 {
    font-size: var(--ms-font-size-xxl);
}

h2 {
    font-size: var(--ms-font-size-xl);
}

h3 {
    font-size: var(--ms-font-size-lg);
}

p {
    margin-bottom: var(--ms-spacing-md);
    color: var(--ms-text-secondary);
}

a {
    color: var(--ms-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ---------- Layout Global ---------- */
.container {
    flex: 1 0 auto;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--ms-spacing-lg);
}

/* ---------- Topbar (Style Microsoft Teams) ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    padding: var(--ms-spacing-md) var(--ms-spacing-lg);
    background-color: var(--ms-surface);
    border-bottom: 1px solid var(--ms-border-light);
    box-shadow: var(--ms-shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ms-spacing-md);
    overflow: visible;
}

.topbar nav {
    display: flex;
    align-items: center;
    gap: var(--ms-spacing-sm);
}

.topbar nav a {
    padding: var(--ms-spacing-xs) var(--ms-spacing-md);
    color: var(--ms-text-secondary);
    font-size: var(--ms-font-size-md);
    font-weight: var(--ms-font-weight-regular);
    border-radius: var(--ms-radius-sm);
    transition: all 0.2s ease;
}

.topbar nav a:hover {
    color: var(--ms-primary);
    background-color: rgba(0, 120, 212, 0.08);
}

.brand-logo {
    height: 64px;
    width: auto;
    display: block;
    flex-shrink: 0;
    margin-top: -12px;
    margin-bottom: -12px;
}

.brand {
    min-width: 0;
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: var(--ms-spacing-sm);
    min-height: 40px;
    color: var(--ms-text);
    text-decoration: none;
}

.brand-title {
    font-size: var(--ms-font-size-xl);
    font-weight: var(--ms-font-weight-semibold);
    line-height: 1.2;
    white-space: nowrap;
    color: var(--ms-text);
}

/* ---------- Footer ---------- */
.site-footer {
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    width: 100%;
    min-height: 90px;
    padding: 0 var(--ms-spacing-lg) var(--ms-spacing-md);
    margin-top: auto;
    flex-shrink: 0;
}

.footer-logo {
    display: block;
    width: auto;
    height: auto;
    max-height: 24px;
    max-width: 120px;
    object-fit: contain;
}

/* ---------- Cartes et Conteneurs ---------- */
.card,
.auth-card,
.stat-card,
.meeting-info,
.meeting-stage {
    background-color: var(--ms-surface);
    border: 1px solid var(--ms-border);
    border-radius: var(--ms-radius-md);
    box-shadow: var(--ms-shadow-sm);
    padding: var(--ms-spacing-lg);
    margin-bottom: var(--ms-spacing-md);
}

.card.small {
    padding: var(--ms-spacing-md);
}

/* ---------- Boutons (Style Microsoft) ---------- */
button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ms-spacing-xs);
    min-height: 36px;
    padding: var(--ms-spacing-xs) var(--ms-spacing-md);
    font-family: var(--ms-font-family);
    font-size: var(--ms-font-size-md);
    font-weight: var(--ms-font-weight-semibold);
    line-height: 1;
    border: none;
    border-radius: var(--ms-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

button.primary,
.button.primary {
    background-color: var(--ms-primary);
    color: #ffffff;
}

button.primary:hover,
.button.primary:hover {
    background-color: var(--ms-primary-dark);
}

button.secondary,
.button.secondary {
    background-color: transparent;
    color: var(--ms-primary);
    border: 1px solid var(--ms-border);
}

button.secondary:hover,
.button.secondary:hover {
    background-color: rgba(0, 120, 212, 0.08);
}

button.danger,
.button.danger {
    background-color: var(--ms-error);
    color: #ffffff;
    border: 1px solid var(--ms-error);
}

button.danger:hover,
.button.danger:hover {
    background-color: #a82c2f;
}

/* ---------- Champs de formulaire ---------- */
label {
    display: block;
    margin-bottom: var(--ms-spacing-xs);
    font-size: var(--ms-font-size-md);
    font-weight: var(--ms-font-weight-semibold);
    color: var(--ms-text);
}

input,
textarea,
select {
    width: 100%;
    padding: var(--ms-spacing-sm) var(--ms-spacing-md);
    font-family: var(--ms-font-family);
    font-size: var(--ms-font-size-md);
    color: var(--ms-text);
    background-color: var(--ms-surface);
    border: 1px solid var(--ms-border);
    border-radius: var(--ms-radius-sm);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--ms-primary);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

/* ---------- Alertes et Badges ---------- */
.alert,
.success,
.warning,
.error {
    padding: var(--ms-spacing-sm) var(--ms-spacing-md);
    border-radius: var(--ms-radius-sm);
    margin-bottom: var(--ms-spacing-md);
    font-size: var(--ms-font-size-md);
}

.alert,
.error {
    background-color: rgba(209, 52, 56, 0.1);
    color: var(--ms-error);
    border: 1px solid rgba(209, 52, 56, 0.2);
}

.success {
    background-color: rgba(16, 124, 16, 0.1);
    color: var(--ms-success);
    border: 1px solid rgba(16, 124, 16, 0.2);
}

.warning {
    background-color: rgba(255, 170, 68, 0.1);
    color: var(--ms-warning);
    border: 1px solid rgba(255, 170, 68, 0.2);
}

.role-badge,
.status-pill {
    display: inline-flex;
    align-items: center;
    padding: var(--ms-spacing-xs) var(--ms-spacing-sm);
    border-radius: 999px;
    font-size: var(--ms-font-size-sm);
    font-weight: var(--ms-font-weight-semibold);
}

.role-badge.admin {
    background-color: rgba(255, 170, 68, 0.15);
    color: var(--ms-warning);
}

.role-badge.user {
    background-color: rgba(0, 120, 212, 0.15);
    color: var(--ms-primary);
}

.status-open {
    background-color: rgba(16, 124, 16, 0.15);
    color: var(--ms-success);
}

.status-closed {
    background-color: rgba(209, 52, 56, 0.15);
    color: var(--ms-error);
}

/* ---------- Hero Section ---------- */
.hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), var(--ms-surface));
    border: 1px solid var(--ms-border-light);
    border-radius: var(--ms-radius-lg);
    padding: var(--ms-spacing-xxl);
    margin-bottom: var(--ms-spacing-lg);
    box-shadow: var(--ms-shadow-md);
}

.hero::after {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 120, 212, 0.1), transparent 70%);
    pointer-events: none;
}

.hero h1 {
    margin: 0 0 var(--ms-spacing-md);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: var(--ms-font-weight-bold);
    letter-spacing: -0.02em;
    color: var(--ms-text);
}

.hero p {
    max-width: 70ch;
    font-size: var(--ms-font-size-lg);
    color: var(--ms-text-secondary);
    line-height: 1.6;
}

/* ---------- Grilles et Layouts ---------- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--ms-spacing-md);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--ms-spacing-md);
    margin-bottom: var(--ms-spacing-lg);
}

.stat-card {
    padding: var(--ms-spacing-md);
}

.stat-label {
    font-size: var(--ms-font-size-sm);
    color: var(--ms-text-secondary);
    font-weight: var(--ms-font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-value {
    margin-top: var(--ms-spacing-xs);
    font-size: 2rem;
    font-weight: var(--ms-font-weight-bold);
    color: var(--ms-text);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--ms-spacing-md);
}

/* ---------- Meeting Layout (Salle WebRTC) ---------- */
.meeting-layout {
    display: grid;
    grid-template-columns: minmax(320px, 400px) minmax(0, 1fr);
    gap: var(--ms-spacing-lg);
    align-items: start;
    margin-bottom: var(--ms-spacing-lg);
}

.meeting-info {
    position: sticky;
    top: 80px;
    align-self: start;
}

.meeting-stage {
    min-height: calc(100vh - 200px);
    display: flex;
    flex-direction: column;
    gap: var(--ms-spacing-md);
}

.meeting-stage-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--ms-spacing-md);
    margin-bottom: var(--ms-spacing-md);
}

/* ---------- Section Headers ---------- */
.dashboard-head,
.section-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--ms-spacing-md);
    margin-bottom: var(--ms-spacing-lg);
}

.page-eyebrow {
    display: inline-flex;
    align-items: center;
    padding: var(--ms-spacing-xs) var(--ms-spacing-sm);
    border-radius: 999px;
    background-color: rgba(0, 120, 212, 0.15);
    color: var(--ms-primary);
    font-size: var(--ms-font-size-sm);
    font-weight: var(--ms-font-weight-bold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.section-kicker {
    font-size: var(--ms-font-size-sm);
    font-weight: var(--ms-font-weight-bold);
    color: var(--ms-text-secondary);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: var(--ms-spacing-xs);
}

/* ---------- Copy Row (Champs + Boutons) ---------- */
.copy-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--ms-spacing-sm);
    align-items: center;
}

.copy-row input {
    min-width: 0;
}

.copy-row button {
    white-space: nowrap;
}

/* ---------- Card Actions ---------- */
.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-sm);
    align-items: center;
    margin-top: var(--ms-spacing-md);
}

.card-actions>* {
    flex: 1;
    min-width: 120px;
}

/* ---------- Meeting Card ---------- */
.meeting-card {
    display: grid;
    gap: var(--ms-spacing-md);
}

.meeting-card-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--ms-spacing-md);
}

.meeting-card h3,
.meeting-info h1,
.meeting-stage h2 {
    margin: 0;
    font-weight: var(--ms-font-weight-bold);
    letter-spacing: -0.02em;
}

.badge-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-xs);
    justify-content: flex-end;
}

.meeting-note {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-sm);
    align-items: center;
    padding: var(--ms-spacing-md);
    border-radius: var(--ms-radius-md);
    background-color: var(--ms-surface);
    border: 1px solid var(--ms-border-light);
}

.meeting-launch {
    display: grid;
    gap: var(--ms-spacing-md);
    align-content: center;
    min-height: 160px;
    padding: var(--ms-spacing-xl);
    border: 1px solid var(--ms-border-light);
    border-radius: var(--ms-radius-md);
    background-color: var(--ms-surface);
}

.meeting-room {
    display: grid;
    gap: var(--ms-spacing-md);
}

.security-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-sm);
    margin-bottom: var(--ms-spacing-md);
}

.security-chip {
    display: inline-flex;
    align-items: center;
    padding: var(--ms-spacing-xs) var(--ms-spacing-md);
    border-radius: 999px;
    background-color: rgba(16, 124, 16, 0.1);
    color: var(--ms-success);
    font-size: var(--ms-font-size-sm);
    font-weight: var(--ms-font-weight-semibold);
}

.security-chip-warning {
    background-color: rgba(255, 170, 68, 0.14);
    color: #9a5b00;
}

.room-prejoin,
.room-panel {
    border: 1px solid var(--ms-border-light);
    border-radius: var(--ms-radius-md);
    background: linear-gradient(180deg, rgba(0, 120, 212, 0.04), rgba(255, 255, 255, 0.92));
    padding: var(--ms-spacing-lg);
}

.room-prejoin {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ms-spacing-md);
    flex-wrap: wrap;
}

.room-prejoin p {
    margin-bottom: 0;
}

.secure-access-card,
.provider-shell {
    display: grid;
    gap: var(--ms-spacing-md);
    padding: var(--ms-spacing-lg);
    border-radius: var(--ms-radius-md);
    border: 1px solid rgba(0, 120, 212, 0.12);
    background:
        radial-gradient(circle at top right, rgba(0, 120, 212, 0.08), transparent 42%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 248, 255, 0.96));
}

.secure-access-form {
    display: grid;
    gap: var(--ms-spacing-md);
    max-width: 360px;
}

.secure-access-copy h3,
.provider-shell-head h3 {
    margin-bottom: var(--ms-spacing-xs);
}

.provider-shell-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--ms-spacing-md);
    flex-wrap: wrap;
}

.provider-stage {
    position: relative;
    min-height: 720px;
    border-radius: 18px;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(7, 15, 28, 0.96), rgba(16, 35, 60, 0.96));
    box-shadow: var(--ms-shadow-lg);
}

.provider-stage iframe {
    width: 100%;
    height: 100%;
    min-height: 720px;
    border: none;
}

.provider-fallback {
    min-height: 720px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--ms-spacing-md);
    padding: var(--ms-spacing-xl);
    color: #ffffff;
    text-align: center;
}

.side-stack,
.admin-control-surface,
.moderation-log {
    display: grid;
    gap: var(--ms-spacing-md);
}

.decision-actions,
.media-links-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-sm);
    align-items: center;
}

.moderation-log-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ms-spacing-sm);
    padding: var(--ms-spacing-sm) var(--ms-spacing-md);
    border-radius: var(--ms-radius-sm);
    background-color: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(0, 120, 212, 0.08);
}

.moderation-log-item span {
    color: var(--ms-text-secondary);
    font-size: var(--ms-font-size-sm);
}

.admin-controls-grid>*,
.decision-actions>* {
    flex: 1 1 180px;
}

.asset-form {
    display: grid;
    gap: var(--ms-spacing-md);
}

.transcript-preview {
    min-height: 220px;
    font-family: Consolas, "Courier New", monospace;
    font-size: 13px;
    line-height: 1.6;
}

.live-transcript-preview {
    margin-top: var(--ms-spacing-md);
    min-height: 260px;
    background: rgba(9, 18, 31, 0.96);
    color: #eef4ff;
    border-color: rgba(0, 120, 212, 0.18);
}

.room-prejoin-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-sm);
    align-items: center;
}

.room-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-sm);
    align-items: center;
    justify-content: space-between;
}

.room-meta-item {
    display: inline-flex;
    align-items: center;
    padding: var(--ms-spacing-xs) var(--ms-spacing-md);
    border-radius: 999px;
    background-color: rgba(0, 120, 212, 0.08);
    color: var(--ms-primary-dark);
    font-size: var(--ms-font-size-sm);
    font-weight: var(--ms-font-weight-semibold);
}

.meeting-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ms-spacing-sm);
}

#room-controls {
    position: sticky;
    bottom: 16px;
    z-index: 12;
    justify-content: center;
    padding: 14px;
    border-radius: 999px;
    background: rgba(9, 18, 31, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 24px 56px rgba(9, 18, 31, 0.28);
    backdrop-filter: blur(16px);
}

#room-controls>* {
    flex: 0 1 auto;
    min-width: 0;
}

#room-controls .secondary,
.participant-actions .compact,
.video-tile-action {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
}

#room-controls .secondary:hover,
.participant-actions .compact:hover,
.video-tile-action:hover {
    background: rgba(0, 120, 212, 0.88);
    border-color: rgba(0, 120, 212, 0.88);
}

.meeting-controls>* {
    flex: 1 1 160px;
}

.webrtc-grid {
    position: relative;
    isolation: isolate;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--ms-spacing-md);
    min-height: 420px;
}

.webrtc-grid>* {
    position: relative;
    z-index: 1;
}

.video-tile,
.video-empty-state {
    position: relative;
    min-height: 240px;
    border-radius: var(--ms-radius-md);
    overflow: hidden;
    background:
        radial-gradient(circle at top, rgba(0, 120, 212, 0.18), transparent 48%),
        linear-gradient(160deg, #10233c, #09121f);
    box-shadow: var(--ms-shadow-md);
}

.video-tile {
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.video-tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 36px rgba(9, 18, 31, 0.28);
}

.video-tile.is-featured {
    grid-column: 1 / -1;
    min-height: 560px;
    border: 1px solid rgba(0, 120, 212, 0.28);
}

.video-tile-local {
    border: 1px solid rgba(0, 120, 212, 0.16);
}

.video-tile video {
    width: 100%;
    height: 100%;
    min-height: 240px;
    object-fit: cover;
    background-color: #0f172a;
}

.video-tile::after {
    content: "";
    position: absolute;
    left: 14px;
    bottom: 70px;
    width: 86px;
    height: 32px;
    border-radius: 10px;
    background-image: var(--room-watermark-image);
    background-repeat: no-repeat;
    background-position: left center;
    background-size: contain;
    opacity: 0.92;
    filter: drop-shadow(0 3px 10px rgba(0, 0, 0, 0.32));
    pointer-events: none;
    z-index: 2;
}

.video-tile.audio-only::before {
    content: "Audio uniquement";
    position: absolute;
    inset: auto auto 56px 16px;
    z-index: 1;
    padding: 6px 10px;
    border-radius: 999px;
    background-color: rgba(15, 23, 42, 0.72);
    color: #ffffff;
    font-size: var(--ms-font-size-sm);
    font-weight: var(--ms-font-weight-semibold);
}

.video-tile-actions {
    position: absolute;
    top: 14px;
    right: 14px;
    display: flex;
    gap: 8px;
    z-index: 3;
}

.video-tile-action,
.participant-actions .compact {
    padding: 8px 10px;
    min-width: auto;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(9, 18, 31, 0.72);
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    backdrop-filter: blur(8px);
}

.video-tile-action:hover,
.participant-actions .compact:hover {
    background: rgba(0, 120, 212, 0.82);
}

.video-overlay {
    position: absolute;
    inset: auto 0 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ms-spacing-sm);
    padding: var(--ms-spacing-md);
    background: linear-gradient(180deg, transparent, rgba(9, 18, 31, 0.88));
    color: #ffffff;
}

.video-overlay strong,
.video-overlay span {
    color: #ffffff;
}

.video-overlay span {
    font-size: var(--ms-font-size-sm);
    text-align: right;
}

.video-empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--ms-spacing-xl);
    color: rgba(255, 255, 255, 0.88);
    text-align: center;
    font-size: var(--ms-font-size-lg);
    font-weight: var(--ms-font-weight-semibold);
}

.room-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--ms-spacing-md);
}

.meeting-stage.card {
    background:
        radial-gradient(circle at top, rgba(0, 120, 212, 0.06), transparent 28%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 248, 255, 0.98));
}

.room-panel h3 {
    margin-bottom: var(--ms-spacing-sm);
}

.participant-list {
    display: grid;
    gap: var(--ms-spacing-sm);
}

.participant-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--ms-spacing-sm);
    padding: var(--ms-spacing-sm) var(--ms-spacing-md);
    border-radius: var(--ms-radius-sm);
    background-color: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(0, 120, 212, 0.08);
}

.participant-item-info {
    display: grid;
    gap: 4px;
}

.participant-item span {
    color: var(--ms-text-secondary);
    font-size: var(--ms-font-size-sm);
}

.participant-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}


/* ---------- Invitation Card ---------- */
.invitation-card {
    max-width: 800px;
    margin: 0 auto;
}

.invitation-footnote {
    margin-top: var(--ms-spacing-md);
    word-break: break-word;
    font-size: var(--ms-font-size-sm);
    color: var(--ms-text-secondary);
}

/* ---------- Focus States (Accessibilité) ---------- */
:focus-visible {
    outline: 2px solid var(--ms-primary);
    outline-offset: 2px;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--ms-primary);
    outline-offset: 2px;
}

/* ---------- Responsive Design ---------- */
@media (max-width: 1024px) {
    .meeting-layout {
        grid-template-columns: 1fr;
    }

    .meeting-info {
        position: static;
    }

}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--ms-spacing-sm);
    }

    .brand-title {
        white-space: normal;
        font-size: var(--ms-font-size-lg);
    }

    .brand-logo {
        height: 48px;
        margin-top: -6px;
        margin-bottom: -6px;
    }

    .topbar nav {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .container {
        padding: 0 var(--ms-spacing-md);
    }

    .hero {
        padding: var(--ms-spacing-lg);
    }

    .hero h1 {
        max-width: none;
    }

    .dashboard-head,
    .section-head,
    .meeting-card-head,
    .meeting-stage-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .badge-stack {
        justify-content: flex-start;
        margin-top: var(--ms-spacing-xs);
    }

    .copy-row {
        grid-template-columns: 1fr;
    }

    .copy-row button {
        width: 100%;
    }

    .card-actions {
        flex-direction: column;
    }

    .card-actions>* {
        width: 100%;
    }

    .room-prejoin {
        align-items: flex-start;
    }

    .meeting-controls>* {
        flex-basis: calc(50% - var(--ms-spacing-sm));
    }

    .provider-stage,
    .provider-stage iframe,
    .provider-fallback {
        min-height: 560px;
    }

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

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

@media (max-width: 480px) {
    .stat-grid {
        grid-template-columns: 1fr;
    }

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

    .webrtc-grid {
        grid-template-columns: 1fr;
        min-height: 320px;
    }

    .video-tile.is-featured {
        min-height: 360px;
    }

    .video-tile::after {
        width: 72px;
        height: 28px;
        bottom: 62px;
    }

    .provider-stage,
    .provider-stage iframe,
    .provider-fallback {
        min-height: 420px;
    }

}

/* ---------- Animations et Transitions ---------- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.hero,
.meeting-info,
.meeting-stage {
    animation: fadeIn 0.3s ease-out;
}

/* ---------- Utilitaires ---------- */
.muted {
    color: var(--ms-text-secondary);
}

.text-center {
    text-align: center;
}

.mt-0 {
    margin-top: 0;
}

.mb-0 {
    margin-bottom: 0;
}

.gap-0 {
    gap: 0;
}

/* Fin du CSS */