/* ============================================
   Quiz The Spire - Hub Stylesheet
   ============================================ */

:root {
    --sai-primary: #6c5ce7;
    --sai-primary-light: #a29bfe;
    --sai-primary-dark: #5541d7;
    --sai-accent: #00cec9;
    --sai-accent-light: #55efc4;
    --sai-success: #00b894;
    --sai-warning: #fdcb6e;
    --sai-danger: #d63031;
    /* Light theme (default) */
    --sai-bg: #f5f6fa;
    --sai-bg-card: #ffffff;
    --sai-bg-input: #f0f1f5;
    --sai-bg-hover: #e8e9f0;
    --sai-text: #2d3436;
    --sai-text-muted: #636e72;
    --sai-border: rgba(0,0,0,0.08);
    --sai-border-hover: rgba(108,92,231,0.3);
    --sai-glow: rgba(108, 92, 231, 0.18);
    --sai-radius: 14px;
    --sai-radius-sm: 10px;
    --sai-radius-xs: 6px;
    --sai-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --sai-shadow-sm: 0 2px 12px rgba(0,0,0,0.06);
    --sai-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --sai-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --sai-font-display: 'Space Grotesk', sans-serif;
    --sai-topbar-bg: rgba(255,255,255,0.92);
    --sai-hero-text-gradient: linear-gradient(135deg, #2d3436 30%, var(--sai-primary) 70%, var(--sai-accent) 100%);
    --sai-nav-active-color: #fff;
}

[data-theme="dark"] {
    --sai-bg: #0c0c18;
    --sai-bg-card: #161628;
    --sai-bg-input: #1c1c36;
    --sai-bg-hover: #1e1e3a;
    --sai-text: #e8eaf0;
    --sai-text-muted: #8e95a9;
    --sai-border: rgba(255,255,255,0.08);
    --sai-border-hover: rgba(108,92,231,0.4);
    --sai-glow: rgba(108, 92, 231, 0.25);
    --sai-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
    --sai-shadow-sm: 0 2px 12px rgba(0,0,0,0.2);
    --sai-topbar-bg: rgba(22,22,40,0.92);
    --sai-hero-text-gradient: linear-gradient(135deg, #fff 30%, var(--sai-primary-light) 70%, var(--sai-accent) 100%);
    --sai-nav-active-color: #fff;
}

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

body {
    background: var(--sai-bg);
    color: var(--sai-text);
    font-family: var(--sai-font);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════
   BUTTONS
   ═══════════════════════════════════ */
.sai-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border: none;
    border-radius: var(--sai-radius-sm);
    font-family: var(--sai-font);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--sai-transition);
    text-decoration: none;
    white-space: nowrap;
}
.sai-btn:active { transform: scale(0.97); }

.sai-btn--primary {
    background: linear-gradient(135deg, var(--sai-primary) 0%, var(--sai-primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 16px var(--sai-glow);
}
.sai-btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px var(--sai-glow);
}
.sai-btn--primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none;
}

.sai-btn--accent {
    background: linear-gradient(135deg, var(--sai-accent) 0%, #009688 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(0,206,201,0.25);
}
.sai-btn--accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0,206,201,0.3);
}
.sai-btn--accent:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none !important;
}

.sai-btn--success {
    background: linear-gradient(135deg, var(--sai-success), #009975);
    color: #fff;
}
.sai-btn--success:hover { transform: translateY(-2px); }
.sai-btn--success:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.sai-btn--danger { background: var(--sai-danger); color: #fff; }
.sai-btn--danger:hover { opacity: 0.9; }

.sai-btn--ghost {
    background: transparent;
    color: var(--sai-text-muted);
    border: 1px solid var(--sai-border);
}
.sai-btn--ghost:hover {
    color: var(--sai-text);
    border-color: var(--sai-border-hover);
    background: rgba(108,92,231,0.06);
}

.sai-btn--outline {
    background: transparent;
    color: var(--sai-primary-light);
    border: 1px solid var(--sai-primary);
}
.sai-btn--outline:hover {
    background: rgba(108,92,231,0.1);
    border-color: var(--sai-primary-light);
}

.sai-btn--full { width: 100%; }
.sai-btn--sm { padding: 6px 14px; font-size: 0.8rem; }
.sai-btn--lg { padding: 14px 28px; font-size: 1rem; }

/* ═══════════════════════════════════
   MODAL
   ═══════════════════════════════════ */
.sai-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}
.sai-modal--active { display: flex; }

.sai-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.sai-modal__content {
    position: relative;
    background: var(--sai-bg-card);
    border-radius: var(--sai-radius);
    padding: 36px;
    max-width: 520px;
    width: 92%;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: var(--sai-shadow);
    border: 1px solid var(--sai-border);
    animation: saiSlideUp 0.35s ease;
}
.sai-modal__content--wide { max-width: 720px; }

.sai-modal__close {
    position: absolute;
    top: 14px; right: 14px;
    background: none;
    border: none;
    color: var(--sai-text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--sai-transition);
    z-index: 1;
}
.sai-modal__close:hover { color: var(--sai-danger); background: rgba(214,48,49,0.1); }

@keyframes saiSlideUp {
    from { opacity: 0; transform: translateY(24px) scale(0.96); }
    to   { opacity: 1; transform: translateY(0)   scale(1); }
}

/* ═══════════════════════════════════
   LOGIN
   ═══════════════════════════════════ */
.sai-login { text-align: center; max-width: 420px; }
.sai-login__header { margin-bottom: 28px; }
.sai-login__logo {
    width: 72px; height: 72px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, var(--sai-primary), var(--sai-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    animation: saiPulse 2.5s infinite;
}
@keyframes saiPulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--sai-glow); }
    50%      { box-shadow: 0 0 0 18px rgba(108,92,231,0); }
}
.sai-login__header h2 {
    font-family: var(--sai-font-display);
    font-size: 1.7rem;
    letter-spacing: -0.02em;
}
.sai-login__header p { color: var(--sai-text-muted); margin-top: 4px; font-size: 0.95rem; }
.sai-login__form { display: flex; flex-direction: column; gap: 14px; }
.sai-login__back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    color: var(--sai-text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--sai-transition);
}
.sai-login__back:hover { color: var(--sai-primary-light); }

/* ═══════════════════════════════════
   FORMS & FIELDS
   ═══════════════════════════════════ */
.sai-field { display: flex; flex-direction: column; gap: 5px; }
.sai-field label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--sai-text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.sai-field input,
.sai-field textarea,
.sai-field select {
    padding: 11px 14px;
    background: var(--sai-bg-input);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius-sm);
    color: var(--sai-text);
    font-family: var(--sai-font);
    font-size: 0.92rem;
    transition: var(--sai-transition);
}
.sai-field input:focus,
.sai-field textarea:focus,
.sai-field select:focus {
    outline: none;
    border-color: var(--sai-primary-light);
    box-shadow: 0 0 0 3px var(--sai-glow);
}
.sai-field input::placeholder,
.sai-field textarea::placeholder { color: rgba(142,149,169,0.5); }

.sai-form { display: flex; flex-direction: column; gap: 16px; }
.sai-row { display: flex; gap: 14px; }
.sai-row--3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.sai-muted { color: var(--sai-text-muted); font-size: 0.9rem; }

.sai-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--sai-text-muted);
}
.sai-check input { accent-color: var(--sai-primary); }

.sai-chip {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    background: rgba(108,92,231,0.15);
    color: var(--sai-primary-light);
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

/* ═══════════════════════════════════
   TOP BAR
   ═══════════════════════════════════ */
.sai-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 60px;
    background: var(--sai-topbar-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--sai-border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.sai-topbar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--sai-text);
    font-family: var(--sai-font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.sai-topbar__brand i { color: var(--sai-primary-light); font-size: 1.3rem; }
.sai-topbar__nav { display: flex; gap: 3px; }
.sai-topbar__user {
    display: flex;
    align-items: center;
    gap: 12px;
}
.sai-avatar {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--sai-text-muted);
    font-size: 0.85rem;
}
.sai-avatar i { font-size: 1.2rem; }

/* ═══════════════════════════════════
   NAV BUTTONS
   ═══════════════════════════════════ */
.sai-nav-btn {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: var(--sai-radius-sm);
    color: var(--sai-text-muted);
    font-family: var(--sai-font);
    font-size: 0.84rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--sai-transition);
    position: relative;
}
.sai-nav-btn:hover {
    color: var(--sai-text);
    background: rgba(108,92,231,0.08);
}
.sai-nav-btn--active {
    color: #fff;
    background: linear-gradient(135deg, var(--sai-primary), var(--sai-primary-dark));
    box-shadow: 0 2px 12px var(--sai-glow);
}
.sai-nav-btn i { font-size: 0.9rem; }

/* ═══════════════════════════════════
   PAGE & CONTENT
   ═══════════════════════════════════ */
.sai-page { min-height: calc(100vh - 60px); }
.sai-content {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 24px 48px;
}
.sai-content--narrow { max-width: 740px; }

.sai-page__header {
    text-align: center;
    padding: 48px 24px 32px;
    background: linear-gradient(180deg, rgba(108,92,231,0.1) 0%, transparent 100%);
}
.sai-page__header h1 {
    font-family: var(--sai-font-display);
    font-size: 2rem;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}
.sai-page__header p {
    color: var(--sai-text-muted);
    max-width: 480px;
    margin: 0 auto 22px;
}

.sai-content h1 {
    font-family: var(--sai-font-display);
    font-size: 1.8rem;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

/* ═══════════════════════════════════
   HERO
   ═══════════════════════════════════ */
.sai-hero {
    position: relative;
    overflow: hidden;
    padding: 56px 24px 44px;
    text-align: center;
    background: linear-gradient(180deg, rgba(108,92,231,0.12) 0%, rgba(0,206,201,0.05) 60%, transparent 100%);
}
.sai-hero__inner { position: relative; z-index: 1; }
.sai-hero h1 {
    font-family: var(--sai-font-display);
    font-size: 2.6rem;
    letter-spacing: -0.03em;
    background: var(--sai-hero-text-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}
.sai-hero p {
    color: var(--sai-text-muted);
    font-size: 1.1rem;
    max-width: 460px;
    margin: 0 auto 26px;
}
.sai-hero__glow {
    position: absolute;
    top: -60%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(108,92,231,0.12) 0%, transparent 70%);
    pointer-events: none;
}

/* ═══════════════════════════════════
   SEARCH
   ═══════════════════════════════════ */
.sai-search {
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: 50px;
    padding: 10px 22px;
    transition: var(--sai-transition);
}
.sai-search:focus-within {
    border-color: var(--sai-primary-light);
    box-shadow: 0 0 0 3px var(--sai-glow);
}
.sai-search i { color: var(--sai-text-muted); flex-shrink: 0; }
.sai-search input {
    flex: 1;
    background: none;
    border: none;
    color: var(--sai-text);
    font-size: 0.95rem;
    font-family: var(--sai-font);
    outline: none;
}

/* ═══════════════════════════════════
   SECTIONS
   ═══════════════════════════════════ */
.sai-section { margin-bottom: 36px; }
.sai-section__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.sai-section__head h2 {
    font-family: var(--sai-font-display);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.01em;
}
.sai-section__head h2 i { color: var(--sai-primary-light); font-size: 1rem; }

/* ═══════════════════════════════════
   LIVE SESSIONS
   ═══════════════════════════════════ */
.sai-sessions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 14px;
    min-height: 80px;
}

.sai-session-card {
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius);
    padding: 20px;
    transition: var(--sai-transition);
    position: relative;
    overflow: hidden;
}
.sai-session-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--sai-success), var(--sai-accent));
}
.sai-session-card:hover {
    border-color: rgba(0,206,201,0.3);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0,206,201,0.1);
}
.sai-session-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.sai-session-card__title {
    font-family: var(--sai-font-display);
    font-weight: 700;
    font-size: 1.05rem;
}
.sai-session-card__live {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--sai-success);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.sai-session-card__live::before {
    content: '';
    width: 7px; height: 7px;
    background: var(--sai-success);
    border-radius: 50%;
    animation: livePulse 1.5s ease-in-out infinite;
}
@keyframes livePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,184,148,0.4); }
    50%      { opacity: 0.6; box-shadow: 0 0 0 6px rgba(0,184,148,0); }
}
.sai-session-card__meta {
    display: flex;
    gap: 14px;
    margin-bottom: 14px;
    font-size: 0.82rem;
    color: var(--sai-text-muted);
}
.sai-session-card__meta span { display: flex; align-items: center; gap: 5px; }
.sai-session-card__phase {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}
.sai-phase--voting  { background: rgba(253,203,110,0.15); color: #e67e22; }
.sai-phase--playing { background: rgba(0,184,148,0.15);   color: #00a381; }
.sai-phase--waiting { background: rgba(162,155,254,0.15);  color: var(--sai-primary); }

[data-theme="dark"] .sai-phase--voting  { color: #fdcb6e; }
[data-theme="dark"] .sai-phase--playing { color: #55efc4; }
[data-theme="dark"] .sai-phase--waiting { color: #a29bfe; }
.sai-session-card__actions { display: flex; gap: 8px; }

.sai-no-sessions {
    grid-column: 1 / -1;
    text-align: center;
    padding: 36px;
    color: var(--sai-text-muted);
    background: var(--sai-bg-card);
    border-radius: var(--sai-radius);
    border: 1px dashed var(--sai-border);
}
.sai-no-sessions i { font-size: 2rem; margin-bottom: 10px; opacity: 0.35; display: block; }
.sai-no-sessions h3 { margin-bottom: 4px; color: var(--sai-text); font-size: 1rem; }
.sai-no-sessions p { font-size: 0.85rem; }

/* ═══════════════════════════════════
   START NEW SESSION / THEME PICKER
   ═══════════════════════════════════ */
.sai-session-create {
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius);
    padding: 28px;
}
.sai-session-create__desc {
    color: var(--sai-text-muted);
    font-size: 0.92rem;
    margin-bottom: 22px;
}

.sai-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}
.sai-picker-header h3 {
    font-family: var(--sai-font-display);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sai-picker-header h3 i { color: var(--sai-primary-light); }

/* Picker sub-tabs (official / community) */
.sai-picker-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 18px;
    background: var(--sai-bg-input);
    border-radius: var(--sai-radius-sm);
    padding: 4px;
    width: fit-content;
}
.sai-picker-tab {
    padding: 7px 18px;
    background: transparent;
    border: none;
    border-radius: var(--sai-radius-xs);
    color: var(--sai-text-muted);
    font-family: var(--sai-font);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--sai-transition);
    display: flex;
    align-items: center;
    gap: 6px;
}
.sai-picker-tab:hover { color: var(--sai-text); }
.sai-picker-tab--active {
    background: var(--sai-primary);
    color: #fff;
    box-shadow: 0 2px 8px var(--sai-glow);
}

/* Theme picker grid */
.sai-picker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
    margin-bottom: 22px;
    max-height: 360px;
    overflow-y: auto;
    padding-right: 4px;
    scrollbar-width: thin;
    scrollbar-color: var(--sai-border) transparent;
}
.sai-picker-grid::-webkit-scrollbar { width: 5px; }
.sai-picker-grid::-webkit-scrollbar-track { background: transparent; }
.sai-picker-grid::-webkit-scrollbar-thumb { background: var(--sai-border); border-radius: 10px; }

.sai-picker-card {
    background: var(--sai-bg-input);
    border: 2px solid transparent;
    border-radius: var(--sai-radius-sm);
    padding: 14px 16px;
    cursor: pointer;
    transition: var(--sai-transition);
    position: relative;
    user-select: none;
}
.sai-picker-card:hover {
    background: var(--sai-bg-hover);
    border-color: rgba(108,92,231,0.2);
}
.sai-picker-card--selected {
    border-color: var(--sai-primary) !important;
    background: rgba(108,92,231,0.08);
    box-shadow: 0 0 0 1px var(--sai-primary), 0 4px 16px var(--sai-glow);
}
.sai-picker-card--selected::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 8px; right: 10px;
    font-size: 0.7rem;
    color: #fff;
    background: var(--sai-primary);
    width: 20px; height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sai-picker-card__name {
    font-weight: 600;
    font-size: 0.88rem;
    margin-bottom: 3px;
    padding-right: 24px;
}
.sai-picker-card__info {
    font-size: 0.75rem;
    color: var(--sai-text-muted);
    display: flex;
    gap: 10px;
}
.sai-picker-card__info span { display: flex; align-items: center; gap: 4px; }

.sai-picker-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 28px;
    color: var(--sai-text-muted);
    font-size: 0.88rem;
}
.sai-picker-empty i { font-size: 1.5rem; opacity: 0.3; display: block; margin-bottom: 8px; }

/* ═══════════════════════════════════
   STATS BAR
   ═══════════════════════════════════ */
.sai-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    padding: 4px 0;
}
.sai-stats__item {
    text-align: center;
    padding: 18px 12px;
    background: var(--sai-bg-card);
    border-radius: var(--sai-radius);
    border: 1px solid var(--sai-border);
}
.sai-stats__val {
    display: block;
    font-family: var(--sai-font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--sai-primary);
    line-height: 1.2;
}
.sai-stats__lbl {
    font-size: 0.72rem;
    color: var(--sai-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ═══════════════════════════════════
   THEME GRID (community / my themes)
   ═══════════════════════════════════ */
.sai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.sai-theme-card {
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius);
    padding: 22px;
    transition: var(--sai-transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.sai-theme-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--sai-primary), var(--sai-accent));
    opacity: 0;
    transition: var(--sai-transition);
}
.sai-theme-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(108,92,231,0.15);
    border-color: var(--sai-border-hover);
}
.sai-theme-card:hover::before { opacity: 1; }

.sai-theme-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}
.sai-theme-card__title {
    font-family: var(--sai-font-display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}
.sai-theme-card__badge {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}
.sai-badge--draft    { background: rgba(99,110,114,0.12);  color: #636e72; }
.sai-badge--pending  { background: rgba(253,203,110,0.15); color: #e67e22; }
.sai-badge--approved { background: rgba(0,184,148,0.15);   color: #00a381; }
.sai-badge--rejected { background: rgba(214,48,49,0.15);   color: #c0392b; }

[data-theme="dark"] .sai-badge--draft    { color: #b2bec3; }
[data-theme="dark"] .sai-badge--pending  { color: #fdcb6e; }
[data-theme="dark"] .sai-badge--approved { color: #55efc4; }
[data-theme="dark"] .sai-badge--rejected { color: #ff7675; }

.sai-theme-card__desc {
    color: var(--sai-text-muted);
    font-size: 0.87rem;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sai-theme-card__meta {
    display: flex;
    gap: 14px;
    font-size: 0.78rem;
    color: var(--sai-text-muted);
}
.sai-theme-card__meta span { display: flex; align-items: center; gap: 4px; }
.sai-theme-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--sai-border);
}
.sai-theme-card__rating { display: flex; align-items: center; gap: 4px; color: var(--sai-warning); font-size: 0.85rem; }
.sai-theme-card__creator { font-size: 0.78rem; color: var(--sai-text-muted); }

/* ═══════════════════════════════════
   CREATE - QUESTION BUILDER
   ═══════════════════════════════════ */
.sai-builder {
    margin-top: 32px;
    border-top: 2px solid var(--sai-border);
    padding-top: 24px;
}
.sai-builder__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}
.sai-builder__head h2 {
    font-family: var(--sai-font-display);
    font-size: 1.3rem;
}
.sai-builder__actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.sai-qlist {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}
.sai-question-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--sai-bg-input);
    border-radius: var(--sai-radius-sm);
    border: 1px solid var(--sai-border);
    transition: var(--sai-transition);
}
.sai-question-item:hover { border-color: var(--sai-border-hover); }
.sai-question-item__num {
    width: 28px; height: 28px;
    background: linear-gradient(135deg, var(--sai-primary), var(--sai-primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.sai-question-item__text { flex: 1; font-size: 0.88rem; }
.sai-question-item__meta {
    display: flex;
    gap: 8px;
    font-size: 0.74rem;
    color: var(--sai-text-muted);
}
.sai-question-item__delete {
    background: none;
    border: none;
    color: var(--sai-text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: var(--sai-transition);
}
.sai-question-item__delete:hover { color: var(--sai-danger); background: rgba(214,48,49,0.1); }

/* Add Question */
.sai-add-q {
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius);
    overflow: hidden;
}
.sai-add-q summary {
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--sai-primary-light);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--sai-transition);
}
.sai-add-q summary:hover { background: rgba(108,92,231,0.05); }
.sai-add-q[open] summary { border-bottom: 1px solid var(--sai-border); }
.sai-add-q .sai-form { padding: 20px; }

.sai-answers {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sai-answers > label { font-size: 0.82rem; font-weight: 600; color: var(--sai-text-muted); display: flex; align-items: center; gap: 6px; }
.sai-answer-row {
    display: flex;
    align-items: center;
    gap: 10px;
}
.sai-answer-row input[type="checkbox"] {
    width: 20px; height: 20px;
    accent-color: var(--sai-success);
    cursor: pointer;
    flex-shrink: 0;
}
.sai-answer-row input[type="text"] {
    flex: 1;
    padding: 9px 12px;
    background: var(--sai-bg-input);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius-xs);
    color: var(--sai-text);
    font-family: var(--sai-font);
    font-size: 0.88rem;
    transition: var(--sai-transition);
}
.sai-answer-row input[type="text"]:focus {
    outline: none;
    border-color: var(--sai-primary-light);
    box-shadow: 0 0 0 3px var(--sai-glow);
}

/* ═══════════════════════════════════
   CREATE TAB - STEP INDICATOR + CARDS
   ═══════════════════════════════════ */
.sai-create-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 28px;
}
.sai-step {
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0.4;
    transition: opacity 0.3s, transform 0.3s;
}
.sai-step--active { opacity: 1; }
.sai-step--done { opacity: 0.7; }
.sai-step--done .sai-step__num {
    background: var(--sai-success);
}
.sai-step__num {
    width: 30px; height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
    color: #fff;
    background: var(--sai-primary);
    flex-shrink: 0;
}
.sai-step__label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--sai-text-muted);
}
.sai-step--active .sai-step__label { color: var(--sai-text); }
.sai-step-line {
    width: 48px;
    height: 2px;
    background: var(--sai-border);
    margin: 0 10px;
}

.sai-create-card {
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius);
    padding: 28px;
    animation: sai-fadeUp 0.4s ease;
}
.sai-create-card h2 {
    font-family: var(--sai-font-display);
    font-size: 1.3rem;
    margin-bottom: 4px;
}
.sai-create-card h2 i { color: var(--sai-accent); margin-right: 6px; }
.sai-create-card > .sai-muted { margin-bottom: 20px; font-size: 0.88rem; }

@keyframes sai-fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.sai-btn--glow {
    position: relative;
    overflow: hidden;
    z-index: 0;
}
.sai-btn--glow::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--sai-primary), var(--sai-accent), var(--sai-primary));
    background-size: 200% 200%;
    animation: sai-glowPulse 3s ease infinite;
    border-radius: inherit;
    z-index: -1;
    filter: blur(8px);
    opacity: 0.5;
}
@keyframes sai-glowPulse {
    0%, 100% { background-position: 0% 50%; opacity: 0.4; }
    50%      { background-position: 100% 50%; opacity: 0.65; }
}

.sai-field__hint {
    display: block;
    text-align: right;
    font-size: 0.72rem;
    color: var(--sai-text-muted);
    margin-top: 2px;
}

.sai-builder__progress {
    width: 120px;
    height: 6px;
    background: var(--sai-bg-input);
    border-radius: 3px;
    overflow: hidden;
}
.sai-builder__bar {
    height: 100%;
    background: linear-gradient(90deg, var(--sai-primary), var(--sai-accent));
    border-radius: 3px;
    transition: width 0.4s ease;
}
.sai-builder__goal {
    font-size: 0.74rem;
}

@media (max-width: 520px) {
    .sai-create-steps { gap: 0; }
    .sai-step__label { display: none; }
    .sai-step-line { width: 28px; }
    .sai-create-card { padding: 18px; }
}

/* ═══════════════════════════════════
   CSV IMPORT
   ═══════════════════════════════════ */
.sai-cards-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}
.sai-info-card {
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius);
    padding: 22px;
}
.sai-info-card h4 {
    margin-bottom: 10px;
    color: var(--sai-primary-light);
    font-family: var(--sai-font-display);
}
.sai-info-card p { color: var(--sai-text-muted); font-size: 0.88rem; margin-bottom: 12px; }

.sai-code-block {
    background: var(--sai-bg);
    border-radius: var(--sai-radius-xs);
    padding: 12px;
    margin-top: 8px;
}
.sai-code-block strong { display: block; font-size: 0.78rem; color: var(--sai-accent); margin-bottom: 4px; }
.sai-code-block code { font-size: 0.78rem; color: var(--sai-text-muted); line-height: 1.5; }

.sai-csv-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    margin-bottom: 12px;
}
.sai-csv-table th {
    text-align: left;
    padding: 6px 8px;
    border-bottom: 1px solid var(--sai-border);
    color: var(--sai-primary-light);
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.sai-csv-table td {
    padding: 5px 8px;
    border-bottom: 1px solid var(--sai-border);
    color: var(--sai-text-muted);
}

.sai-dropzone {
    border: 2px dashed var(--sai-border);
    border-radius: var(--sai-radius);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--sai-transition);
    background: var(--sai-bg-card);
}
.sai-dropzone:hover,
.sai-dropzone--active {
    border-color: var(--sai-primary-light);
    background: rgba(108,92,231,0.04);
}
.sai-dropzone i { font-size: 2.6rem; color: var(--sai-primary-light); margin-bottom: 12px; }
.sai-dropzone h3 { margin-bottom: 4px; font-size: 1.05rem; }
.sai-dropzone p { color: var(--sai-text-muted); font-size: 0.88rem; }

.sai-csv-results {
    background: var(--sai-bg-card);
    border: 1px solid var(--sai-border);
    border-radius: var(--sai-radius);
    padding: 20px;
    margin-top: 16px;
}
.sai-csv-results h4 { margin-bottom: 12px; }
.sai-result-stat {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--sai-border);
    font-size: 0.88rem;
}

/* ═══════════════════════════════════
   EMPTY STATE
   ═══════════════════════════════════ */
.sai-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 64px 24px;
    color: var(--sai-text-muted);
}
.sai-empty > i { font-size: 2.6rem; margin-bottom: 14px; opacity: 0.25; display: block; }
.sai-empty h3 { margin-bottom: 8px; color: var(--sai-text); }
.sai-empty p { margin-bottom: 18px; }

/* ═══════════════════════════════════
   THEME DETAIL MODAL
   ═══════════════════════════════════ */
.sai-theme-detail__header { margin-bottom: 20px; }
.sai-theme-detail__header h2 { font-family: var(--sai-font-display); font-size: 1.5rem; }
.sai-theme-detail__stats {
    display: flex;
    gap: 20px;
    margin: 14px 0;
    font-size: 0.88rem;
    color: var(--sai-text-muted);
}
.sai-theme-detail__stats span { display: flex; align-items: center; gap: 5px; }
.sai-theme-detail__actions { display: flex; gap: 12px; margin-top: 20px; }
.sai-theme-detail__questions { margin-top: 20px; max-height: 40vh; overflow-y: auto; }
.sai-preview-question {
    padding: 14px;
    background: var(--sai-bg);
    border-radius: var(--sai-radius-sm);
    margin-bottom: 8px;
}
.sai-preview-question__text { font-weight: 600; margin-bottom: 8px; font-size: 0.92rem; }
.sai-preview-answer {
    display: inline-block;
    padding: 3px 10px;
    margin: 3px 4px;
    border-radius: 4px;
    font-size: 0.78rem;
}
.sai-preview-answer--correct { background: rgba(0,184,148,0.15); color: var(--sai-success); }
.sai-preview-answer--wrong   { background: rgba(99,110,114,0.15); color: var(--sai-text-muted); }

/* ═══════════════════════════════════
   STAR RATING
   ═══════════════════════════════════ */
.sai-stars { display: flex; gap: 4px; }
.sai-star { cursor: pointer; font-size: 1.2rem; color: var(--sai-text-muted); opacity: 0.45; transition: var(--sai-transition); }
.sai-star--active, .sai-star:hover { color: var(--sai-warning); opacity: 1; }

/* ═══════════════════════════════════
   ADMIN REVIEW (community tab)
   ═══════════════════════════════════ */
.sai-review-banner {
    background: linear-gradient(135deg, rgba(253,203,110,0.08), rgba(108,92,231,0.06));
    border: 1px solid rgba(253,203,110,0.2);
    border-radius: var(--sai-radius);
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.sai-review-banner__text {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.92rem;
}
.sai-review-banner__text i { color: var(--sai-warning); }
.sai-review-banner__count {
    background: var(--sai-warning);
    color: #000;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.78rem;
    font-weight: 700;
}

.sai-review-card {
    background: var(--sai-bg-card);
    border: 1px solid rgba(253,203,110,0.2);
    border-radius: var(--sai-radius);
    padding: 20px;
    margin-bottom: 12px;
}
.sai-review-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}
.sai-review-card__title {
    font-family: var(--sai-font-display);
    font-weight: 700;
    font-size: 1.05rem;
}
.sai-review-card__desc { color: var(--sai-text-muted); font-size: 0.88rem; margin-bottom: 12px; }
.sai-review-card__meta {
    display: flex;
    gap: 14px;
    font-size: 0.78rem;
    color: var(--sai-text-muted);
    margin-bottom: 12px;
}
.sai-review-card__meta span { display: flex; align-items: center; gap: 4px; }
.sai-review-card__actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ═══════════════════════════════════
   FOOTER
   ═══════════════════════════════════ */
.sai-footer {
    text-align: center;
    padding: 28px;
    border-top: 1px solid var(--sai-border);
    color: var(--sai-text-muted);
    font-size: 0.82rem;
}
.sai-footer a { color: var(--sai-primary-light); text-decoration: none; }
.sai-footer a:hover { text-decoration: underline; }

/* ═══════════════════════════════════
   TABS
   ═══════════════════════════════════ */
.sai-tab { display: none; }
.sai-tab--active { display: block; animation: saiFadeIn 0.3s ease; }

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

/* ═══════════════════════════════════
   TOAST
   ═══════════════════════════════════ */
.sai-toast-container {
    position: fixed;
    top: 76px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}
.sai-toast {
    padding: 12px 20px;
    border-radius: var(--sai-radius-sm);
    color: #fff;
    font-size: 0.88rem;
    font-weight: 500;
    animation: saiSlideIn 0.3s ease, saiSlideOut 0.3s ease 3.7s forwards;
    box-shadow: var(--sai-shadow);
    max-width: 380px;
    pointer-events: auto;
}
.sai-toast--success { background: var(--sai-success); }
.sai-toast--error   { background: var(--sai-danger); }
.sai-toast--info    { background: var(--sai-primary); }

@keyframes saiSlideIn {
    from { opacity: 0; transform: translateX(80px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes saiSlideOut {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(80px); }
}

/* ═══════════════════════════════════
   SPINNER
   ═══════════════════════════════════ */
.sai-spinner {
    width: 28px; height: 28px;
    border: 3px solid var(--sai-border);
    border-top-color: var(--sai-primary-light);
    border-radius: 50%;
    animation: saiSpin 0.7s linear infinite;
    margin: 24px auto;
}
@keyframes saiSpin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════ */
@media (max-width: 768px) {
    .sai-topbar { flex-wrap: wrap; height: auto; padding: 10px 16px; gap: 6px; }
    .sai-topbar__nav { order: 3; width: 100%; overflow-x: auto; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
    .sai-topbar__nav::-webkit-scrollbar { display: none; }
    .sai-nav-btn span { display: none; }
    .sai-nav-btn { padding: 8px 12px; }
    .sai-hero { padding: 36px 16px 28px; }
    .sai-hero h1 { font-size: 1.8rem; }
    .sai-content { padding: 20px 16px 36px; }
    .sai-sessions { grid-template-columns: 1fr; }
    .sai-picker-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .sai-stats { grid-template-columns: repeat(2, 1fr); }
    .sai-grid { grid-template-columns: 1fr; }
    .sai-cards-row { grid-template-columns: 1fr; }
    .sai-row--3 { grid-template-columns: 1fr; }
    .sai-builder__head { flex-direction: column; align-items: flex-start; }
    .sai-page__header h1 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .sai-topbar__brand span { display: none; }
    .sai-modal__content { padding: 24px 18px; margin: 8px; }
    .sai-session-create { padding: 18px; }
    .sai-picker-grid { grid-template-columns: 1fr 1fr; max-height: 260px; }
    .sai-stats { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .sai-stats__val { font-size: 1.4rem; }
}