:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --danger: #dc2626;
    --danger-hover: #b91c1c;
    --success: #16a34a;
    --warning: #f59e0b;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

#header-title { font-size: 1.25rem; color: var(--primary); }

.nav-btn {
    background: none;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    cursor: pointer;
    margin-left: 0.5rem;
    transition: all 0.2s;
}
.nav-btn:hover { border-color: var(--primary); color: var(--primary); }

main { max-width: 900px; margin: 2rem auto; padding: 0 1rem; }

.hidden { display: none !important; }

.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.hero h2 { margin-bottom: 0.5rem; font-size: 2rem; }
.hero p { color: var(--text-light); margin-bottom: 2rem; }

.join-form { display: flex; gap: 0.5rem; justify-content: center; }
.join-form input {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    width: 200px;
    transition: border-color 0.2s;
}
.join-form input:focus { outline: none; border-color: var(--primary); }
.join-form button, .btn-primary {
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}
.join-form button:hover, .btn-primary:hover { background: var(--primary-hover); }

.event-header, .admin-header, .event-detail-header {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}
.admin-header { display: flex; justify-content: space-between; align-items: center; }

.submit-topic {
    background: var(--card-bg);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.submit-topic input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
}
.submit-topic input:focus { outline: none; border-color: var(--primary); }
.submit-topic button {
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
}
.submit-topic button:hover { background: var(--primary-hover); }
#char-count { color: var(--text-light); font-size: 0.85rem; min-width: 50px; }

.topics-list { display: flex; flex-direction: column; gap: 0.75rem; }

.topic-card {
    background: var(--card-bg);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.15s, box-shadow 0.15s;
}
.topic-card:hover { transform: translateY(-1px); box-shadow: 0 4px 6px rgba(0,0,0,0.1); }

.vote-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 50px;
    padding: 0.5rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: none;
    cursor: pointer;
    transition: all 0.2s;
}
.vote-btn:hover { border-color: var(--primary); color: var(--primary); }
.vote-btn.voted { border-color: var(--primary); background: #eef2ff; color: var(--primary); }
.vote-btn .count { font-size: 1.25rem; font-weight: bold; }
.vote-btn .arrow { font-size: 0.75rem; }

.topic-text { flex: 1; font-size: 1rem; line-height: 1.4; }

.topic-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}
.status-visible { background: #dcfce7; color: var(--success); }
.status-hidden { background: #f1f5f9; color: var(--text-light); }
.status-flagged { background: #fef3c7; color: #d97706; }

.topic-actions { display: flex; gap: 0.5rem; }
.topic-actions button {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--card-bg);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
}
.topic-actions button:hover { border-color: var(--primary); color: var(--primary); }
.topic-actions .btn-delete:hover { border-color: var(--danger); color: var(--danger); }

.events-list { display: flex; flex-direction: column; gap: 0.75rem; }
.event-card {
    background: var(--card-bg);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.15s;
}
.event-card:hover { transform: translateY(-2px); box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
.event-card h3 { margin-bottom: 0.25rem; }
.event-card .event-meta { color: var(--text-light); font-size: 0.85rem; }

.event-actions { display: flex; gap: 0.75rem; align-items: center; margin-top: 1rem; }
.share-link {
    background: var(--bg);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-family: monospace;
    font-size: 0.85rem;
}
.btn-copy {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card-bg);
    cursor: pointer;
}
.btn-danger {
    padding: 0.5rem 1rem;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
}
.btn-danger:hover { background: var(--danger-hover); }

.btn-back {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    padding: 0.5rem 0;
}

.tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.tab {
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card-bg);
    cursor: pointer;
    transition: all 0.2s;
}
.tab.active { background: var(--primary); color: white; border-color: var(--primary); }

.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}
.modal-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius);
    width: 90%;
    max-width: 450px;
    box-shadow: 0 20px 25px rgba(0,0,0,0.15);
}
.modal-content h3 { margin-bottom: 1rem; }
.modal-content input, .modal-content textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    margin-bottom: 1rem;
}
.modal-content textarea { resize: vertical; min-height: 80px; }
.modal-actions { display: flex; gap: 0.75rem; justify-content: flex-end; }
.modal-actions button {
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}
.modal-actions button:first-child { background: var(--primary); color: white; }
.btn-secondary { background: var(--bg) !important; color: var(--text) !important; border: 1px solid var(--border) !important; }

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: var(--text);
    color: white;
    border-radius: var(--radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    animation: slideIn 0.3s ease;
    z-index: 200;
}
@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* Moderation metadata for flagged topics */
.admin-topics .topic-card { flex-wrap: wrap; }
.moderation-info {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 0.5rem;
    margin-top: 0.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-light);
}
.moderation-info span {
    background: #fef3c7;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: #92400e;
}
.mod-translation {
    font-style: italic;
}

/* Event lifecycle - closed banner */
.event-closed-banner {
    background: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: var(--radius);
    padding: 0.75rem 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}
.event-closed-banner p {
    color: #92400e;
    font-weight: 600;
    font-size: 0.95rem;
}

/* Event lifecycle - admin toggle buttons */
.btn-close-event, .btn-reopen-event, .btn-reset-votes, .btn-reset-event {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background 0.2s;
}
.btn-reset-votes, .btn-reset-event {
    background: #f1f5f9;
    color: #334155;
    border: 1px solid var(--border);
}
.btn-reset-votes:hover, .btn-reset-event:hover {
    background: #e2e8f0;
}
.btn-close-event {
    background: var(--warning);
    color: #1e293b;
}
.btn-close-event:hover {
    background: #d97706;
}
.btn-reopen-event {
    background: var(--success);
    color: white;
}
.btn-reopen-event:hover {
    background: #15803d;
}

/* Disabled inputs for closed events */
.submit-topic input:disabled,
.submit-topic button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.vote-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =============================================
   AUDIENCE UI MODES - Mode Switcher & Scoped Styles
   ============================================= */

/* --- Mode Switcher Control --- */
.mode-switcher {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border);
}

.mode-switcher .mode-btn {
    flex: 1;
    padding: 0.6rem 1.25rem;
    border: none;
    background: var(--card-bg);
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    border-right: 1px solid var(--border);
}

.mode-switcher .mode-btn:last-child {
    border-right: none;
}

.mode-switcher .mode-btn:hover {
    background: var(--bg);
}

.mode-switcher .mode-btn.active {
    background: var(--primary);
    color: white;
}

/* =============================================
   MODERN MODE — #view-audience[data-mode="modern"]
   ============================================= */

/* Full-page dark background when Modern mode is active */
body:has(#view-audience[data-mode="modern"]:not(.hidden)) {
    background: #0f0f1a;
}

body:has(#view-audience[data-mode="modern"]:not(.hidden)) header {
    background: #1e1e2e;
    border-bottom-color: #334155;
}

body:has(#view-audience[data-mode="modern"]:not(.hidden)) header #header-title {
    color: #a78bfa;
}

body:has(#view-audience[data-mode="modern"]:not(.hidden)) header .nav-btn {
    color: #e2e8f0;
    border-color: #334155;
}

#view-audience[data-mode="modern"] {
    background: transparent;
    padding: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Override the main max-width constraint for Modern mode */
body:has(#view-audience[data-mode="modern"]:not(.hidden)) main {
    max-width: 1200px;
}

/* Modern grid layout */
#view-audience[data-mode="modern"] .modern-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

@media (max-width: 1024px) {
    #view-audience[data-mode="modern"] .modern-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    #view-audience[data-mode="modern"] .modern-grid {
        grid-template-columns: 1fr;
    }
}

/* Modern tile styling — light HSL backgrounds with dark text (like prototype-a) */
#view-audience[data-mode="modern"] .modern-tile {
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 1.25rem;
    min-height: 100px;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: default;
}

#view-audience[data-mode="modern"] .modern-tile:hover {
    transform: translateY(-4px);
}

/* Top-voted tile spans 2 columns on wide viewports */
@media (min-width: 1025px) {
    #view-audience[data-mode="modern"] .modern-tile.span-2 {
        grid-column: span 2;
        min-height: 180px;
    }
}

@media (max-width: 600px) {
    #view-audience[data-mode="modern"] .modern-tile.span-2 {
        grid-column: span 1;
    }
}

/* Tile text — dark color on light HSL backgrounds */
#view-audience[data-mode="modern"] .modern-tile .topic-text {
    flex: 1;
    font-size: 1rem;
    line-height: 1.4;
    color: #1e1b4b;
    word-break: break-word;
}

/* Vote button in Modern mode */
#view-audience[data-mode="modern"] .modern-tile .vote-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 0.5rem 0.75rem;
    border: 1px solid #6b5b95;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.6);
    color: #3b1f6e;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 50px;
}

#view-audience[data-mode="modern"] .modern-tile .vote-btn:hover:not(:disabled) {
    border-color: #7c3aed;
    color: #5b21b6;
    background: rgba(255, 255, 255, 0.85);
}

#view-audience[data-mode="modern"] .modern-tile .vote-btn.voted {
    background: rgba(124, 58, 237, 0.2);
    border-color: #7c3aed;
    color: #5b21b6;
}

#view-audience[data-mode="modern"] .modern-tile .vote-btn:disabled {
    cursor: default;
}

#view-audience[data-mode="modern"] .modern-tile .vote-btn .arrow {
    font-size: 1rem;
}

#view-audience[data-mode="modern"] .modern-tile .vote-btn .count {
    font-size: 1.1rem;
    font-weight: 700;
}

#view-audience[data-mode="modern"] .modern-tile .vote-btn .label {
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Pulse animation for newly voted tiles */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

#view-audience[data-mode="modern"] .modern-tile.pulse {
    animation: pulse 400ms ease;
}

/* =============================================
   FUN MODE — #view-audience[data-mode="fun"]
   ============================================= */

/* Full-page dark background when Fun mode is active */
body:has(#view-audience[data-mode="fun"]:not(.hidden)) {
    background: #0f0f1a;
}

body:has(#view-audience[data-mode="fun"]:not(.hidden)) header {
    background: #1e1e2e;
    border-bottom-color: #334155;
}

body:has(#view-audience[data-mode="fun"]:not(.hidden)) header #header-title {
    color: #a78bfa;
}

body:has(#view-audience[data-mode="fun"]:not(.hidden)) header .nav-btn {
    color: #e2e8f0;
    border-color: #334155;
}

#view-audience[data-mode="fun"] {
    background: transparent;
    padding: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Override main max-width for Fun mode */
body:has(#view-audience[data-mode="fun"]:not(.hidden)) main {
    max-width: 100%;
    padding: 0;
}

/* Fun circles container for force-directed layout */
#view-audience[data-mode="fun"] .fun-circles-container {
    position: relative;
    min-height: 600px;
    width: 100%;
    overflow: hidden;
}

/* Circle elements */
#view-audience[data-mode="fun"] .fun-circle {
    position: absolute;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1rem;
    color: #ffffff;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.8s ease;
    will-change: transform, width, height, left, top;
    overflow: hidden;
    user-select: none;
}

#view-audience[data-mode="fun"] .fun-circle:hover {
    transform: scale(1.08);
}

/* Circle content layout */
#view-audience[data-mode="fun"] .fun-circle .circle-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    max-width: 100%;
    max-height: 100%;
    overflow: hidden;
}

/* Topic text — truncated with ellipsis */
#view-audience[data-mode="fun"] .fun-circle .circle-text {
    font-size: 0.8rem;
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    word-break: break-word;
}

/* Vote count — arrow and number on same line */
#view-audience[data-mode="fun"] .fun-circle .circle-votes {
    font-size: 1.1rem;
    font-weight: 700;
    white-space: nowrap;
}

/* VOTED label */
#view-audience[data-mode="fun"] .fun-circle .circle-voted-label {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.8);
}

/* Voted circle indicator — solid border with glow (like prototype-b) */
#view-audience[data-mode="fun"] .fun-circle.voted {
    border: 3px solid #7c3aed;
    box-shadow: 0 0 12px rgba(124, 58, 237, 0.4);
    cursor: default;
}

/* Mobile: vertical stacking instead of absolute positioning */
@media (max-width: 600px) {
    #view-audience[data-mode="fun"] .fun-circles-container {
        min-height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 16px;
        padding: 1rem 0;
    }

    #view-audience[data-mode="fun"] .fun-circle {
        position: relative;
    }
}

/* =============================================
   DARK-THEME OVERRIDES for Modern & Fun Modes
   ============================================= */

/* Event header in dark modes */
#view-audience[data-mode="modern"] .event-header,
#view-audience[data-mode="fun"] .event-header {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

#view-audience[data-mode="modern"] .event-header h2,
#view-audience[data-mode="fun"] .event-header h2 {
    color: #ffffff;
}

#view-audience[data-mode="modern"] .event-header p,
#view-audience[data-mode="fun"] .event-header p {
    color: rgba(255, 255, 255, 0.7);
}

/* Submit topic input in dark modes */
#view-audience[data-mode="modern"] .submit-topic,
#view-audience[data-mode="fun"] .submit-topic {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

#view-audience[data-mode="modern"] .submit-topic input,
#view-audience[data-mode="fun"] .submit-topic input {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

#view-audience[data-mode="modern"] .submit-topic input::placeholder,
#view-audience[data-mode="fun"] .submit-topic input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

#view-audience[data-mode="modern"] .submit-topic input:focus,
#view-audience[data-mode="fun"] .submit-topic input:focus {
    border-color: var(--primary);
}

#view-audience[data-mode="modern"] #char-count,
#view-audience[data-mode="fun"] #char-count {
    color: rgba(255, 255, 255, 0.5);
}

/* Mode switcher in dark modes */
#view-audience[data-mode="modern"] .mode-switcher,
#view-audience[data-mode="fun"] .mode-switcher {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

#view-audience[data-mode="modern"] .mode-switcher .mode-btn,
#view-audience[data-mode="fun"] .mode-switcher .mode-btn {
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    border-right-color: rgba(255, 255, 255, 0.1);
}

#view-audience[data-mode="modern"] .mode-switcher .mode-btn:hover,
#view-audience[data-mode="fun"] .mode-switcher .mode-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

#view-audience[data-mode="modern"] .mode-switcher .mode-btn.active,
#view-audience[data-mode="fun"] .mode-switcher .mode-btn.active {
    background: var(--primary);
    color: #ffffff;
}

/* Event closed banner in dark modes */
#view-audience[data-mode="modern"] .event-closed-banner,
#view-audience[data-mode="fun"] .event-closed-banner {
    background: rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.4);
}

#view-audience[data-mode="modern"] .event-closed-banner p,
#view-audience[data-mode="fun"] .event-closed-banner p {
    color: #fbbf24;
}