/* =========================================
   TalkBridge — Two-Column Split Layout
   Premium Dark Theme
   ========================================= */

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

:root {
    --bg-primary: #08080d;
    --bg-secondary: #0f0f18;
    --bg-card: rgba(18, 18, 30, 0.75);

    --accent-en: #6C9FFF;
    --accent-en-dim: rgba(108, 159, 255, 0.12);
    --accent-en-glow: rgba(108, 159, 255, 0.3);

    --accent-vi: #FF6584;
    --accent-vi-dim: rgba(255, 101, 132, 0.12);
    --accent-vi-glow: rgba(255, 101, 132, 0.3);

    --accent-gradient: linear-gradient(135deg, var(--accent-en), #a78bfa, var(--accent-vi));

    --text-primary: #eaeaf4;
    --text-secondary: #8888a8;
    --text-muted: #4e4e6a;

    --border-subtle: rgba(255, 255, 255, 0.06);
    --glass-blur: 24px;
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --radius-full: 100px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Ambient background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 25% 15%, rgba(108, 159, 255, 0.07) 0%, transparent 50%),
        radial-gradient(ellipse at 75% 85%, rgba(255, 101, 132, 0.07) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(108, 99, 255, 0.04) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.app-container {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 auto;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    padding: 0 16px;
}

/* ---- HEADER ---- */
.app-header {
    text-align: center;
    padding: 16px 0 8px;
    animation: fadeDown 0.5s ease-out;
}

.header-row {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 4px;
}

.logo h1 {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.logo-icon {
    animation: slowSpin 25s linear infinite;
}

.tagline {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Settings / Share icon buttons */
.header-actions {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: 6px;
}

.settings-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.settings-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    transform: rotate(45deg);
}
/* Dots (⋯) button — no rotation, subtle scale */
.settings-btn--dots:hover {
    transform: scale(1.15);
}

/* ---- SETTINGS PANEL ---- */
.settings-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.settings-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.settings-panel {
    width: 90%;
    max-width: 400px;
    max-height: 85vh;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    transform: translateY(20px) scale(0.96);
    transition: transform 0.3s ease;
}
.settings-overlay.open .settings-panel {
    transform: translateY(0) scale(1);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.settings-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.settings-close {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.settings-close:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

/* Voice group */
.voice-group {
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-subtle);
}
.voice-group:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
}

.voice-group-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}
.voice-flag {
    font-size: 1.1rem;
}

.voice-select-row {
    display: flex;
    gap: 8px;
}

.voice-select {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.82rem;
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition);
    appearance: none;
    -webkit-appearance: none;
    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='%238888a8'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
}
.voice-select:focus {
    border-color: var(--accent-en);
}
.voice-select option {
    background: #1a1a2e;
    color: var(--text-primary);
}

.voice-preview {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: rgba(108, 99, 255, 0.1);
    color: var(--accent-en);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.voice-preview:hover {
    background: rgba(108, 99, 255, 0.2);
    transform: scale(1.05);
}
.voice-preview:active {
    transform: scale(0.95);
}

/* Slider */
.slider-value {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--accent-en);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.voice-slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
    outline: none;
    cursor: pointer;
}
.voice-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-en);
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 2px 8px rgba(108, 99, 255, 0.4);
    cursor: pointer;
    transition: transform 0.15s ease;
}
.voice-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}
.voice-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-en);
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 2px 8px rgba(108, 99, 255, 0.4);
    cursor: pointer;
}

.settings-note {
    text-align: center;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 16px;
    font-style: italic;
}

/* ---- BROWSER WARNING ---- */
.browser-warning {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    margin: 8px 0;
    border-radius: var(--radius-sm);
    background: rgba(255, 180, 50, 0.08);
    border: 1px solid rgba(255, 180, 50, 0.2);
    color: #f5c542;
    font-size: 0.8rem;
}

/* ---- DIRECTION TOGGLE (language chips) ---- */
.direction-bar {
    display: flex;
    gap: 10px;
    padding: 6px 0 10px;
    animation: fadeDown 0.6s ease-out;
}

.lang-chip {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 2px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    color: var(--text-muted);
    position: relative;
    overflow: hidden;
}

.lang-chip:hover {
    transform: scale(1.02);
}

.lang-chip:active {
    transform: scale(0.97);
}

.chip-flag {
    font-size: 1.4rem;
    line-height: 1;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.chip-label {
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: color var(--transition), opacity var(--transition);
}

/* ---- ACTIVE chip = bright glow ---- */
.lang-chip.lang-en.active {
    border-color: var(--accent-en);
    box-shadow: 0 0 24px var(--accent-en-glow), inset 0 0 20px var(--accent-en-dim);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent-en-dim), transparent 70%);
}
.lang-chip.lang-en.active .chip-label {
    color: var(--accent-en);
}
.lang-chip.lang-en.active .chip-flag {
    transform: scale(1.12);
}

.lang-chip.lang-vi.active {
    border-color: var(--accent-vi);
    box-shadow: 0 0 24px var(--accent-vi-glow), inset 0 0 20px var(--accent-vi-dim);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent-vi-dim), transparent 70%);
}
.lang-chip.lang-vi.active .chip-label {
    color: var(--accent-vi);
}
.lang-chip.lang-vi.active .chip-flag {
    transform: scale(1.12);
}

/* ---- INACTIVE chip = dim ---- */
.lang-chip:not(.active) {
    opacity: 0.45;
}
.lang-chip:not(.active):hover {
    opacity: 0.65;
    border-color: rgba(255, 255, 255, 0.1);
}

/* ---- Generic chip IDs: chip-a = blue, chip-b = violet/pink ---- */
#chip-a.active {
    border-color: var(--accent-en);
    box-shadow: 0 0 24px var(--accent-en-glow), inset 0 0 20px var(--accent-en-dim);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent-en-dim), transparent 70%);
}
#chip-a.active .chip-label { color: var(--accent-en); }
#chip-a.active .chip-flag  { transform: scale(1.12); }

#chip-b.active {
    border-color: var(--accent-vi);
    box-shadow: 0 0 24px var(--accent-vi-glow), inset 0 0 20px var(--accent-vi-dim);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent-vi-dim), transparent 70%);
}
#chip-b.active .chip-label { color: var(--accent-vi); }
#chip-b.active .chip-flag  { transform: scale(1.12); }

/* ---- Language selects inside settings panel ---- */
.settings-lang-select {
    max-width: 100%;
    width: 100%;
    border-radius: var(--radius-sm);
    margin-top: 8px;
}

/* =======================================
   TWO-COLUMN CONVERSATION LAYOUT
   ======================================= */

.conversation-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    animation: fadeUp 0.6s ease-out;
}

/* Sticky Column Headers */
.col-headers {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 0 0 6px;
    position: sticky;
    top: 0;
    z-index: 5;
    background: var(--bg-primary);
}

.col-header {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

.col-flag {
    font-size: 0.9rem;
}

.col-header-en {
    color: var(--accent-en);
    background: var(--accent-en-dim);
    border-bottom: 2px solid rgba(108, 159, 255, 0.2);
}

.col-header-vi {
    color: var(--accent-vi);
    background: var(--accent-vi-dim);
    border-bottom: 2px solid rgba(255, 101, 132, 0.2);
}

/* Scrollable Feed */
.conversation-feed {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0 4px;
    scroll-behavior: smooth;
}

.conversation-feed::-webkit-scrollbar {
    width: 3px;
}
.conversation-feed::-webkit-scrollbar-track {
    background: transparent;
}
.conversation-feed::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
}

/* Empty state */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--text-muted);
    text-align: center;
    gap: 12px;
    padding: 40px 20px;
    grid-column: 1 / -1;
}

.empty-icon {
    opacity: 0.2;
    animation: floatSlow 4s ease-in-out infinite;
}

.empty-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ---- MESSAGE ROW (two-column grid) ---- */
.msg-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 8px;
    animation: msgIn 0.35s ease-out;
}

.msg-cell {
    padding: 10px 12px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.5;
    word-break: break-word;
    position: relative;
    min-height: 40px;
}

/* Source cell = the one user spoke */
.msg-cell.is-source {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

/* Translation cell = the translated output */
.msg-cell.is-translation {
    font-weight: 500;
    font-size: 0.92rem;
}

.msg-cell.is-translation.col-en {
    background: var(--accent-en-dim);
    border: 1px solid rgba(108, 159, 255, 0.12);
    color: #a8c8ff;
}

.msg-cell.is-translation.col-vi {
    background: var(--accent-vi-dim);
    border: 1px solid rgba(255, 101, 132, 0.12);
    color: #ffb0c0;
}

/* Source side keeps its language tint too */
.msg-cell.is-source.col-en {
    border-left: 3px solid rgba(108, 159, 255, 0.3);
}
.msg-cell.is-source.col-vi {
    border-left: 3px solid rgba(255, 101, 132, 0.3);
}

/* Speak button inside translation */
.speak-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 26px;
    height: 26px;
    border: none;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    padding: 0;
}
.speak-btn:hover {
    background: rgba(255,255,255,0.14);
    color: var(--text-primary);
    transform: scale(1.1);
}

/* ---- INTERIM BAR ---- */
.interim-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    margin: 0 0 6px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
}

.interim-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-en);
    animation: blink 1s ease-in-out infinite;
    flex-shrink: 0;
}

body.dir-vi .interim-dot {
    background: var(--accent-vi);
}

/* ---- MIC DOCK ---- */
.mic-dock {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 12px 0 20px;
    position: sticky;
    bottom: 0;
    background: linear-gradient(to top, var(--bg-primary) 60%, transparent);
    z-index: 10;
}

.mic-button {
    position: relative;
    width: 68px;
    height: 68px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    flex-shrink: 0;
}

.mic-button:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
    transform: scale(1.06);
}

.mic-button:active {
    transform: scale(0.95);
}

/* Active state — EN direction */
.mic-button.active {
    background: var(--accent-en-dim);
    border-color: var(--accent-en);
    color: var(--accent-en);
    box-shadow: 0 0 40px var(--accent-en-glow);
}

body.dir-vi .mic-button.active {
    background: var(--accent-vi-dim);
    border-color: var(--accent-vi);
    color: var(--accent-vi);
    box-shadow: 0 0 40px var(--accent-vi-glow);
}

.mic-button .stop-icon { display: none; }
.mic-button.active .mic-icon { display: none; }
.mic-button.active .stop-icon { display: block; }

/* Pulse rings */
.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--accent-en);
    pointer-events: none;
    opacity: 0;
}

body.dir-vi .pulse-ring {
    border-color: var(--accent-vi);
}

.mic-button.active .pulse-ring {
    animation: pulseRing 2s ease-out infinite;
}
.mic-button.active .pulse-ring.delay {
    animation-delay: 0.6s;
}

.clear-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.clear-btn:hover {
    border-color: rgba(255, 100, 100, 0.3);
    color: #ff7b7b;
    background: rgba(255, 100, 100, 0.06);
}

.status-pill {
    font-size: 0.7rem;
    color: var(--text-muted);
    min-width: 44px;
    text-align: center;
    letter-spacing: 0.02em;
}

/* ---- ANIMATIONS ---- */
@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes msgIn {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes pulseRing {
    0% { transform: scale(1); opacity: 0.45; }
    100% { transform: scale(1.7); opacity: 0; }
}

@keyframes blink {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes slowSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ---- PWA INSTALL BANNER ---- */
.install-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    margin: 0 0 8px;
    border-radius: var(--radius-lg);
    background: rgba(108, 99, 255, 0.08);
    border: 1px solid rgba(108, 99, 255, 0.18);
    backdrop-filter: blur(12px);
    animation: fadeUp 0.4s ease-out;
}

.install-content {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.install-content svg {
    flex-shrink: 0;
    color: var(--accent-en);
}

.install-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.install-btn {
    padding: 6px 16px;
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent-en), #8a7fff);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.02em;
}
.install-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 18px rgba(108, 99, 255, 0.3);
}

.install-dismiss {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.install-dismiss:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 480px) {
    .app-container {
        padding: 0 8px;
    }

    .mic-button {
        width: 60px;
        height: 60px;
    }

    .chip-flag {
        font-size: 1.2rem;
    }

    .chip-label {
        font-size: 0.8rem;
    }

    .msg-cell {
        padding: 8px 10px;
        font-size: 0.84rem;
    }

    .col-header {
        font-size: 0.62rem;
        padding: 6px 8px;
    }
}

/* ---- QR SHARE MODAL ---- */
.qr-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.qr-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.qr-panel {
    background: #13131f;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px 24px 24px;
    width: min(340px, 90vw);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    transform: scale(0.94);
    transition: transform var(--transition);
}

.qr-overlay.open .qr-panel {
    transform: scale(1);
}

.qr-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.qr-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.qr-url {
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    letter-spacing: 0.02em;
}

.qr-img-wrap {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 8px;
    line-height: 0;
}

.qr-img {
    display: block;
    border-radius: 6px;
}

.qr-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.5;
}

/* ---- LANGUAGE SELECTOR BAR ---- */
.lang-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.lang-select {
    flex: 1;
    max-width: 200px;
    appearance: none;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.88rem;
    font-family: var(--font);
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: border-color var(--transition), background var(--transition);
    /* Custom dropdown arrow */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 30px;
}

.lang-select:hover,
.lang-select:focus {
    border-color: var(--accent-primary);
    background-color: rgba(108, 99, 255, 0.1);
    outline: none;
}

.lang-select option {
    background: #13131f;
    color: var(--text-primary);
}

.lang-swap-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition);
}

.lang-swap-btn:hover {
    background: rgba(108, 99, 255, 0.15);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: rotate(180deg);
}

@media (max-width: 480px) {
    .lang-select {
        font-size: 0.8rem;
        padding: 6px 10px;
        padding-right: 26px;
        max-width: 150px;
    }
    .lang-swap-btn {
        width: 30px;
        height: 30px;
    }
}


/* =========================================
   Room Bar — persistent strip when connected
   ========================================= */
.room-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 20px;
    background: rgba(40, 200, 120, 0.08);
    border-bottom: 1px solid rgba(40, 200, 120, 0.18);
    font-size: 0.82rem;
    animation: roomBarSlide 0.4s ease;
}
@keyframes roomBarSlide {
    from { opacity: 0; transform: translateY(-100%); }
    to   { opacity: 1; transform: translateY(0); }
}
.room-bar-left {
    display: flex;
    align-items: center;
    gap: 10px;
}
.room-bar-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #28c878;
    box-shadow: 0 0 6px rgba(40, 200, 120, 0.6);
    animation: roomPulse 2s ease infinite;
}
@keyframes roomPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.room-bar-label {
    color: var(--text-secondary);
}
.room-bar-label strong {
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 2px;
    font-size: 0.85rem;
}
.room-bar-members {
    color: #28c878;
    font-weight: 500;
}
.room-bar-leave {
    background: transparent;
    border: 1px solid rgba(255, 100, 100, 0.3);
    color: #ff6464;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.78rem;
    font-weight: 500;
    transition: var(--transition);
}
.room-bar-leave:hover {
    background: rgba(255, 100, 100, 0.12);
    border-color: rgba(255, 100, 100, 0.5);
}

/* =========================================
   Room Modal Overlay
   ========================================= */
.room-overlay {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}
.room-overlay.open {
    opacity: 1;
    pointer-events: auto;
}
.room-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    width: min(420px, 92vw);
    max-height: 88vh;
    overflow-y: auto;
    transform: translateY(24px) scale(0.96);
    transition: transform 0.35s ease;
}
.room-overlay.open .room-panel {
    transform: translateY(0) scale(1);
}
.room-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
.room-modal-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.room-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 22px;
    line-height: 1.5;
}
.room-actions {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.room-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: rgba(108, 159, 255, 0.1);
    border: 1px solid rgba(108, 159, 255, 0.2);
    color: var(--accent-en);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    width: 100%;
}
.room-action-btn:hover {
    background: rgba(108, 159, 255, 0.18);
    border-color: rgba(108, 159, 255, 0.4);
}
.room-create-btn {
    background: linear-gradient(135deg, rgba(108, 159, 255, 0.15), rgba(167, 139, 250, 0.15));
    border-color: rgba(167, 139, 250, 0.25);
    color: #a78bfa;
}
.room-create-btn:hover {
    background: linear-gradient(135deg, rgba(108, 159, 255, 0.25), rgba(167, 139, 250, 0.25));
}
.room-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.room-divider::before,
.room-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-subtle);
}
.room-join-group {
    display: flex;
    gap: 8px;
}
.room-join-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 3px;
    text-transform: uppercase;
    text-align: center;
    outline: none;
    transition: var(--transition);
}
.room-join-input::placeholder {
    font-family: 'Inter', sans-serif;
    letter-spacing: 0;
    text-transform: none;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.room-join-input:focus {
    border-color: var(--accent-en);
    box-shadow: 0 0 0 3px var(--accent-en-dim);
}
.room-join-btn {
    width: auto;
    min-width: 80px;
}
.room-note {
    margin-top: 14px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    min-height: 1.2em;
}
.room-note.error {
    color: #ff6464;
}
.room-note.success {
    color: #28c878;
}

/* Room-sourced messages get a subtle "remote" badge */
.msg-row.remote-msg {
    position: relative;
}
.msg-row.remote-msg::before {
    content: '📡';
    position: absolute;
    top: 8px;
    left: -6px;
    font-size: 0.7rem;
    opacity: 0.5;
}

/* Room button active state */
#room-btn.in-room {
    color: #28c878;
    position: relative;
}
#room-btn.in-room::after {
    content: '';
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #28c878;
    box-shadow: 0 0 4px rgba(40, 200, 120, 0.6);
}

/* Mobile adjustments for room */
@media (max-width: 600px) {
    .room-bar {
        padding: 6px 14px;
        font-size: 0.78rem;
    }
    .room-panel {
        padding: 22px 18px;
    }
    .room-join-input {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
}

/* =========================================
   Settings Button + Overlay Panel
   ========================================= */

.settings-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.07);
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition);
}
.settings-btn:hover { background: rgba(255,255,255,0.14); }
.settings-btn--dots {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1;
}

/* Full-screen backdrop */
.settings-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    align-items: flex-start;
    justify-content: center;
    padding-top: 60px;
}
.settings-overlay.open { display: flex; }

/* Slide-in panel */
.settings-panel {
    width: min(420px, 92vw);
    max-height: 80dvh;
    overflow-y: auto;
    background: #13131f;
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: var(--radius-lg);
    padding: 24px 22px 28px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.6);
    animation: panel-in 0.22s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes panel-in {
    from { opacity: 0; transform: translateY(-18px) scale(0.97); }
    to   { opacity: 1; transform: none; }
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.settings-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}
.settings-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.07);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition);
}
.settings-close:hover { background: rgba(255,255,255,0.14); }

.voice-group { margin-bottom: 18px; }
.voice-group-label {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.settings-lang-select {
    width: 100%;
    padding: 10px 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
}
.settings-lang-select:focus { outline: none; border-color: var(--accent-en); }
.voice-slider { width: 100%; accent-color: var(--accent-en); }
.slider-value {
    margin-left: auto;
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}
.settings-note {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 4px;
}
.qr-url {
    font-size: 0.8rem;
    color: var(--text-secondary);
}