/* ── Reset & Base ─────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-dark: #0a0a0f;
    --bg-panel: #13131a;
    --bg-input: #1a1a24;
    --border: #2a2a3a;
    --text: #e8e8f0;
    --text-dim: #8888a0;
    --text-nonfinal: #6666a0;
    --accent: #4f8ff7;
    --accent-hover: #6ba3ff;
    --success: #34d399;
    --danger: #f87171;
    --warning: #fbbf24;
    --radius: 8px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

/* ── Speaker Dashboard ───────────────────────────────────────────────────── */

.speaker-body { padding: 20px; }

.dashboard {
    max-width: 800px;
    margin: 0 auto;
}

.dash-header {
    text-align: center;
    padding: 30px 0 20px;
    position: relative;
}
.dash-header h1 { font-size: 28px; font-weight: 700; }
.subtitle { color: var(--text-dim); margin-top: 4px; }

.auth-bar {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    gap: 8px;
    align-items: center;
}
.auth-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(79, 143, 247, 0.14);
    border: 1px solid rgba(79, 143, 247, 0.35);
    color: var(--text);
    font-size: 12px;
    font-weight: 600;
}
.auth-logout {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text);
}
.auth-logout:hover:not(:disabled) {
    border-color: var(--accent);
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
}
.panel h2 { font-size: 18px; margin-bottom: 16px; }
.panel h3 { font-size: 15px; margin-bottom: 12px; color: var(--text-dim); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 16px;
    color: var(--text);
    margin-bottom: 8px;
    font-weight: 600;
}
select, input[type="text"], input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 14px;
    font-family: var(--font);
    outline: none;
    transition: border-color 0.2s;
}
select:focus, input:focus { border-color: var(--accent); }

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
}
.checkbox-grid label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    color: var(--text);
    transition: border-color 0.2s;
}
.checkbox-grid label:hover { border-color: var(--accent); }
.checkbox-grid input[type="checkbox"] { accent-color: var(--accent); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.2s;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-success { background: var(--success); color: #000; }
.btn-success:hover:not(:disabled) { filter: brightness(1.1); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { filter: brightness(1.1); }
.btn-small { padding: 6px 12px; font-size: 12px; }
.btn-large { padding: 14px 40px; font-size: 16px; }
.btn-center { display: flex; justify-content: center; margin-top: 20px; }

.login-panel {
    max-width: 460px;
    margin: 0 auto 16px;
}
.login-card {
    text-align: left;
}
.auth-message {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: var(--radius);
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid rgba(248, 113, 113, 0.28);
    color: #ffd4d4;
    font-size: 13px;
}

/* Session Info */
.session-info {
    display: flex;
    gap: 24px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.session-info > div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.session-info .label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }
.session-code .code {
    font-size: 28px;
    font-weight: 800;
    font-family: "SF Mono", "Fira Code", monospace;
    color: var(--accent);
    letter-spacing: 3px;
}
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}
.badge-waiting { background: var(--warning); color: #000; }
.badge-active { background: var(--success); color: #000; }
.badge-ended { background: var(--text-dim); color: #fff; }

/* Share Box */
.share-box { margin-bottom: 20px; }
.share-box label { font-size: 13px; color: var(--text-dim); margin-bottom: 6px; display: block; }
.link-row { display: flex; gap: 8px; margin-bottom: 12px; }
.link-row input { flex: 1; }
.qr-container {
    display: flex;
    justify-content: center;
    padding: 16px;
    background: #fff;
    border-radius: var(--radius);
    max-width: 200px;
}

/* Audio Controls */
.audio-controls { margin-bottom: 20px; }
.level-meter {
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 16px;
}
.level-bar-inner {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--success), var(--warning), var(--danger));
    border-radius: 4px;
    transition: width 0.05s;
}
.control-buttons { display: flex; gap: 12px; }

/* Preview */
.preview-box {
    background: var(--bg-input);
    border-radius: var(--radius);
    padding: 16px;
}
.preview-text {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.preview-text:last-child { border-bottom: none; }
.preview-label { color: var(--text-dim); font-size: 12px; margin-right: 8px; }

/* Stream Status */
.stream-status { margin-top: 12px; }
.stream-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 13px;
}
.stream-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--success);
}
.stream-dot.disconnected { background: var(--danger); }

/* Log */
.log-panel { max-height: 200px; }
.log-output {
    font-family: "SF Mono", "Fira Code", monospace;
    font-size: 12px;
    color: var(--text-dim);
    max-height: 150px;
    overflow-y: auto;
    line-height: 1.8;
}
.log-output .log-error { color: var(--danger); }
.log-output .log-success { color: var(--success); }

/* ── Viewer ──────────────────────────────────────────────────────────────── */

.viewer-body {
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
    background: #000;
    position: fixed;
    inset: 0;
}

/* Overlay */
.overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    z-index: 100;
}
.overlay-content {
    text-align: center;
    max-width: 600px;
    padding: 40px;
}
.overlay-content h1 { font-size: 36px; margin-bottom: 12px; }
.overlay-content p { color: var(--text-dim); margin-bottom: 24px; font-size: 16px; }

.lang-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}
.lang-btn {
    padding: 14px 16px;
    background: var(--bg-panel);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.2s;
}
.lang-btn:hover { border-color: var(--accent); background: var(--bg-input); }

.error-text { color: var(--danger); font-size: 14px; }

/* Pulse Dot */
.pulse-dot {
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--accent);
    margin: 0 auto 20px;
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.3); }
}

/* ═══ Immersive Viewer Display ═══ */

.immersive-display {
    position: fixed; inset: 0;
    background: #000;
    overflow: hidden;
}

/* Floating Controls — auto-hide */
.imm-controls {
    position: fixed; top: 0; left: 0; right: 0; z-index: 50;
    display: flex; justify-content: space-between; align-items: center;
    padding: calc(12px + env(safe-area-inset-top, 0px)) 20px 12px;
    background: linear-gradient(180deg, rgba(0,0,0,0.75) 0%, transparent 100%);
    opacity: 1; transition: opacity 0.5s ease;
}
.imm-controls.hidden { opacity: 0; pointer-events: none; }

.imm-status-group {
    display: flex;
    align-items: center;
    gap: 10px;
}
.imm-lang-label {
    font-size: 13px;
    color: #d7d7e2;
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0;
}

.imm-ctrl-group { display: flex; gap: 6px; }
.imm-ctrl-btn {
    padding: 6px 12px; font-size: 13px; font-family: var(--font);
    background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px; color: #ccc; cursor: pointer; transition: all 0.2s;
}
.imm-ctrl-btn:hover { background: rgba(255,255,255,0.2); color: #fff; }
.imm-ctrl-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Reading Line (subtle guide at 62% height) */
.reading-line {
    position: fixed;
    top: 62%;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255,255,255,0.05);
    z-index: 5;
    pointer-events: none;
}

/* Full-screen Text Area with mask gradient */
.imm-text-area {
    position: fixed; inset: 0;
    overflow-x: hidden;
    overflow-y: auto;
    padding: 0 8%;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: none;
    scroll-behavior: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 12%, #000 86%, transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, #000 12%, #000 86%, transparent 100%);
}
.imm-text-area.live-follow {
    overflow-y: hidden;
}
.imm-text-area::-webkit-scrollbar {
    display: none;
}
.imm-text-content {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.7;
    color: #fff;
    word-wrap: break-word;
    width: min(100%, 1080px);
    margin: 0 auto;
    padding-top: 56vh;
    padding-bottom: 34vh;
    will-change: transform;
    transform: translate3d(0, 0, 0);
}

/* Word spans — soft fade-in */
.tp-word {
    display: inline;
    opacity: 0;
    animation: tp-word-fade 380ms ease-out forwards;
}
@keyframes tp-word-fade {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.back-live-btn {
    position: fixed;
    left: 50%;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    transform: translateX(-50%);
    z-index: 60;
    padding: 10px 16px;
    border: 1px solid rgba(79, 143, 247, 0.5);
    border-radius: 999px;
    background: rgba(15, 15, 24, 0.92);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.back-live-btn.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(8px);
}

.conn-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.conn-status::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.95;
}
.conn-status.connected { color: var(--success); }
.conn-status.disconnected { color: var(--danger); }
.conn-status.connecting { color: var(--warning); }

/* ── Responsive ──────────────────────────────────────────────────────────── */

@media (max-width: 600px) {
    .speaker-body { padding: 10px; }
    .panel { padding: 16px; }
    .session-info { gap: 16px; }
    .session-code .code { font-size: 22px; }
    .checkbox-grid { grid-template-columns: repeat(2, 1fr); }
    .imm-text-content { font-size: 26px; width: min(100%, 92vw); padding-top: 54vh; padding-bottom: 30vh; }
    .imm-text-area { padding-left: 5%; padding-right: 5%; }
    .imm-status-group { gap: 8px; }
    .imm-lang-label { font-size: 12px; }
    .back-live-btn { bottom: calc(12px + env(safe-area-inset-bottom, 0px)); }
    .lang-grid { grid-template-columns: repeat(2, 1fr); }
}