/* ════════════════════════════════════════════════
   SRS Daily Review Page
   ════════════════════════════════════════════════ */

/* ── Review Banner (shown on dashboard/results) ── */
.srs-banner {
    background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(99,102,241,0.1));
    border: 1px solid rgba(139,92,246,0.25);
    border-radius: 16px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    transition: all 0.25s;
    margin-bottom: 16px;
    animation: srsBannerIn 0.4s ease;
}
.srs-banner:hover {
    background: linear-gradient(135deg, rgba(139,92,246,0.22), rgba(99,102,241,0.15));
    border-color: rgba(139,92,246,0.4);
    transform: translateY(-1px);
}
@keyframes srsBannerIn { from { opacity:0; transform:translateY(8px); } }

.srs-banner-icon {
    font-size: 28px;
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(139,92,246,0.2);
    border-radius: 12px;
    flex-shrink: 0;
}
.srs-banner-body { flex: 1; min-width: 0; }
.srs-banner-title {
    font-size: 15px; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.srs-banner-sub {
    font-size: 12px; color: var(--text-muted);
}
.srs-banner-btn {
    padding: 8px 18px;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: white;
    border: none; border-radius: 10px;
    font-size: 13px; font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}
.srs-banner-btn:hover { transform: scale(1.04); box-shadow: 0 4px 16px rgba(139,92,246,0.35); }
.srs-banner.srs-banner-done {
    background: linear-gradient(135deg, rgba(16,185,129,0.12), rgba(5,150,105,0.08));
    border-color: rgba(16,185,129,0.25);
}
.srs-banner.srs-banner-done .srs-banner-icon { background: rgba(16,185,129,0.2); }

/* ── Review Page ── */
.srs-page {
    min-height: 100vh;
    background: var(--bg);
    padding: 20px;
}
.srs-page.hidden { display: none; }

.srs-inner {
    max-width: 720px;
    margin: 0 auto;
}

.srs-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}
.srs-header-center { flex: 1; text-align: center; }
.srs-page-title {
    font-size: 22px; font-weight: 800;
    background: linear-gradient(135deg, #a78bfa, #8b5cf6);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}
.srs-page-sub {
    font-size: 13px; color: var(--text-muted); margin: 4px 0 0;
}

/* Stats row */
.srs-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}
.srs-stat {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 14px;
    padding: 14px 10px;
    text-align: center;
    transition: transform 0.2s;
}
.srs-stat:hover { transform: translateY(-2px); }
.srs-stat-num {
    font-size: 22px; font-weight: 800;
    line-height: 1.2;
}
.srs-stat-lbl {
    font-size: 11px; color: var(--text-muted);
    margin-top: 2px;
}

/* Progress ring */
.srs-progress-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
}
.srs-ring-wrap { position: relative; width: 100px; height: 100px; flex-shrink: 0; }
.srs-ring-svg { transform: rotate(-90deg); }
.srs-ring-bg { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 8; }
.srs-ring-fill {
    fill: none; stroke: #8b5cf6; stroke-width: 8;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.8s cubic-bezier(0.4,0,0.2,1);
}
.srs-ring-text {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
}
.srs-ring-num { font-size: 24px; font-weight: 800; color: var(--text-primary); line-height: 1; }
.srs-ring-label { font-size: 10px; color: var(--text-muted); }

.srs-progress-info { flex: 1; }
.srs-progress-title { font-size: 16px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.srs-progress-detail { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
.srs-progress-detail strong { color: var(--text-primary); }

/* Card review area */
.srs-card-area {
    margin-bottom: 20px;
}
.srs-video-label {
    font-size: 11px;
    color: var(--text-muted);
    padding: 4px 12px;
    background: rgba(139,92,246,0.1);
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 10px;
    max-width: 100%;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.srs-review-card {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    min-height: 200px;
    perspective: 1200px;
    cursor: pointer;
    position: relative;
}
.srs-review-inner {
    width: 100%; min-height: 200px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.5s cubic-bezier(0.4,0.2,0.2,1);
    border-radius: 20px;
}
.srs-review-front, .srs-review-back {
    position: absolute; inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 20px;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 32px 28px;
    text-align: center;
}
.srs-review-front {
    background: linear-gradient(135deg, rgba(139,92,246,0.1), rgba(99,102,241,0.06));
    border: 1px solid rgba(139,92,246,0.15);
}
.srs-review-back {
    background: linear-gradient(135deg, rgba(16,185,129,0.08), rgba(5,150,105,0.05));
    border: 1px solid rgba(16,185,129,0.15);
    transform: rotateY(180deg);
}
.srs-review-side-label {
    position: absolute; top: 12px;
    font-size: 10px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--text-muted);
}
.srs-review-back .srs-review-side-label { color: #34d399; }
.srs-review-text {
    font-size: 15px; line-height: 1.7;
    color: var(--text-primary);
    white-space: pre-line;
    max-height: 180px; overflow-y: auto;
    scrollbar-width: none; width: 100%;
}
.srs-review-text::-webkit-scrollbar { display: none; }
.srs-review-hint {
    position: absolute; bottom: 12px;
    font-size: 11px; color: var(--text-muted);
}

/* Rate buttons */
.srs-rate-row {
    display: flex; gap: 8px;
    justify-content: center;
    margin-top: 16px;
    transition: opacity 0.3s;
}
.srs-rate-btn {
    flex: 1; max-width: 140px;
    padding: 12px 8px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.04);
    color: var(--text-primary);
    font-size: 13px; font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}
.srs-rate-btn .srs-rate-sub {
    display: block; font-size: 10px;
    opacity: 0.6; font-weight: 400; margin-top: 2px;
}
.srs-rate-hard:hover { background: rgba(239,68,68,0.15); border-color: #ef4444; color: #f87171; }
.srs-rate-ok:hover   { background: rgba(234,179,8,0.15);  border-color: #eab308; color: #fde047; }
.srs-rate-easy:hover { background: rgba(16,185,129,0.15); border-color: #10b981; color: #34d399; }

/* Completion screen */
.srs-complete {
    text-align: center;
    padding: 48px 24px;
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 20px;
    animation: srsCompleteIn 0.5s ease;
}
@keyframes srsCompleteIn { from { opacity:0; transform:scale(0.95); } }
.srs-complete-icon { font-size: 56px; margin-bottom: 12px; }
.srs-complete-title {
    font-size: 22px; font-weight: 800;
    background: linear-gradient(135deg, #34d399, #10b981);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}
.srs-complete-sub { font-size: 14px; color: var(--text-secondary); margin-bottom: 20px; }
.srs-complete-stats {
    display: flex; gap: 16px; justify-content: center;
    margin-bottom: 24px;
}
.srs-complete-stat {
    padding: 10px 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 12px;
    text-align: center;
}
.srs-complete-stat-num { font-size: 20px; font-weight: 700; }
.srs-complete-stat-lbl { font-size: 11px; color: var(--text-muted); }
.srs-complete-btn {
    padding: 10px 28px;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: white; border: none; border-radius: 12px;
    font-size: 14px; font-weight: 600;
    cursor: pointer; transition: all 0.2s;
}
.srs-complete-btn:hover { transform: scale(1.04); }

/* Counter badge */
.srs-counter-badge {
    font-size: 12px; color: var(--text-primary);
    margin-bottom: 8px; text-align: center;
}

/* Mobile */
@media (max-width: 480px) {
    .srs-stats-row { grid-template-columns: repeat(2, 1fr); }
    .srs-progress-wrap { flex-direction: column; text-align: center; }
    .srs-banner { flex-wrap: wrap; }
    .srs-banner-btn { width: 100%; text-align: center; }
    .srs-rate-btn { padding: 10px 6px; font-size: 12px; }
}

/* Light mode */
[data-theme="light"] .srs-stat { border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .srs-review-card { border-color: rgba(0,0,0,0.1); }
[data-theme="light"] .srs-ring-bg { stroke: rgba(0,0,0,0.08); }
[data-theme="light"] .srs-rate-btn { border-color: rgba(0,0,0,0.12); background: rgba(0,0,0,0.03); }

.light-mode .srs-stat { background: rgba(255,255,255,0.8); border-color: rgba(0,0,0,0.08); }
.light-mode .srs-progress-wrap { background: rgba(255,255,255,0.8); border-color: rgba(0,0,0,0.08); }
.light-mode .srs-ring-bg { stroke: rgba(0,0,0,0.08); }
.light-mode .srs-review-card { border-color: rgba(0,0,0,0.1); }
.light-mode .srs-review-front { background: linear-gradient(135deg, rgba(139,92,246,0.06), rgba(99,102,241,0.04)); border-color: rgba(139,92,246,0.15); }
.light-mode .srs-review-back { background: linear-gradient(135deg, rgba(16,185,129,0.06), rgba(5,150,105,0.04)); border-color: rgba(16,185,129,0.15); }
.light-mode .srs-review-text { color: #1e293b; }
.light-mode .srs-rate-btn { border-color: rgba(0,0,0,0.12); background: rgba(255,255,255,0.9); color: #1e293b; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.light-mode .srs-rate-btn .srs-rate-sub { color: #475569; opacity: 1 !important; }
.light-mode .srs-rate-hard { color: #dc2626 !important; border-color: rgba(220,38,38,0.3); background: rgba(220,38,38,0.05); }
.light-mode .srs-rate-hard .srs-rate-sub { color: #dc2626 !important; }
.light-mode .srs-rate-ok { color: #b45309 !important; border-color: rgba(202,138,4,0.3); background: rgba(202,138,4,0.05); }
.light-mode .srs-rate-ok .srs-rate-sub { color: #b45309 !important; }
.light-mode .srs-rate-easy { color: #059669 !important; border-color: rgba(5,150,105,0.3); background: rgba(5,150,105,0.05); }
.light-mode .srs-rate-easy .srs-rate-sub { color: #059669 !important; }
.light-mode .srs-complete { background: rgba(255,255,255,0.8); border-color: rgba(0,0,0,0.08); }
.light-mode .srs-complete-stat { background: rgba(248,250,252,0.8); border-color: rgba(0,0,0,0.06); }
.light-mode .srs-banner { background: linear-gradient(135deg, rgba(139,92,246,0.08), rgba(99,102,241,0.05)); border-color: rgba(139,92,246,0.2); }
.light-mode .srs-video-label { background: rgba(139,92,246,0.08); color: #6d28d9; }

/* ── Email reminder toggle ── */
.srs-reminder-toggle {
    min-width: 110px;
    padding: 8px 14px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: #94a3b8;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.srs-reminder-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
}
.srs-reminder-toggle.active {
    background: rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.4);
    color: #fbbf24;
}