.overlay {
    background: rgba(31, 22, 16, 0.34);
    backdrop-filter: blur(10px);
}

.onboarding-overlay {
    display: none;
    opacity: 0;
    pointer-events: none;
}

.onboarding-overlay.visible {
    display: flex;
    opacity: 1;
    pointer-events: auto;
}

.premium-sheet-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 2000;
    display: flex;
    align-items: flex-end;
    animation: sheetFadeIn 0.2s ease;
}

@keyframes sheetFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.premium-sheet {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: 24px 24px 0 0;
    padding: 8px 20px 32px;
    padding-bottom: calc(32px + env(safe-area-inset-bottom, 0px));
    box-shadow: 0 -12px 48px rgba(0, 0, 0, 0.15);
    animation: sheetSlideUp 0.32s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
}

@keyframes sheetSlideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.premium-sheet-handle {
    width: 36px;
    height: 4px;
    background: var(--border-strong);
    border-radius: 99px;
    margin: 8px auto 20px;
}

.premium-sheet-icon {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 12px;
    display: block;
}

.premium-sheet-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 6px;
}

.premium-sheet-body {
    font-size: 0.82rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.6;
    margin-bottom: 20px;
}

.premium-sheet-price {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    text-align: center;
    margin-bottom: 4px;
}

.premium-sheet-price-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: 0.02em;
}

.premium-sheet-btn {
    display: block;
    width: 100%;
    padding: 14px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    color: #fff;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(196, 154, 42, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 10px;
}

.premium-sheet-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 30px rgba(196, 154, 42, 0.45);
}

.premium-sheet-cancel {
    display: block;
    width: 100%;
    padding: 10px;
    border: none;
    background: none;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    color: var(--text-muted);
    cursor: pointer;
    text-align: center;
}

.premium-sheet-features {
    list-style: none;
    margin: 0 0 20px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.premium-sheet-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.premium-sheet-features li::before {
    content: '✓';
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: rgba(196, 154, 42, 0.12);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.audio-mini-player {
    position: fixed;
    bottom: 88px;
    left: 12px;
    right: 12px;
    z-index: 90;
    transition: transform 0.35s cubic-bezier(0.25,0.8,0.25,1), opacity 0.35s;
}

body.immersive-mode .audio-mini-player {
    transform: translateY(150px) scale(0.95);
    opacity: 0;
    pointer-events: none;
}

.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(30, 30, 30, 0.75);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.9);
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    pointer-events: none;
}

[data-theme="light"] .back-to-top {
    background-color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.back-to-top:hover,
.back-to-top:active {
    background-color: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-2px) scale(1.05);
}

.verse-action-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1499;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.verse-action-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.ios-verse-action-bar {
    position: fixed;
    bottom: calc(105px + env(safe-area-inset-bottom, 0px));
    left: 12px;
    right: 12px;
    background: rgba(30, 30, 30, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    border-radius: 20px;
    z-index: 2000;
    padding: 16px 12px;
    transform: translateY(150%) scale(0.95);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.3s ease;
}

.ios-verse-action-bar.visible {
    transform: translateY(0) scale(1);
    opacity: 1;
    pointer-events: auto;
}

[data-theme="light"] .ios-verse-action-bar {
    background: rgba(250, 250, 250, 0.95);
    border: 1px solid rgba(0,0,0,0.1);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.ios-vab-drag-indicator {
    width: 36px;
    height: 5px;
    background: rgba(120, 120, 120, 0.4);
    border-radius: 3px;
    margin: 0 auto 12px;
}

.ios-vab-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4px 10px;
}

.ios-vab-label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.ios-vab-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.ios-vab-colors {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 6px 0 16px;
    margin-bottom: 12px;
    border-bottom: 1px solid rgba(120, 120, 120, 0.2);
}

[data-theme="light"] .ios-vab-colors {
    border-bottom-color: rgba(0,0,0,0.1);
}

.ios-vab-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.ios-vab-btn {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    background: rgba(120, 120, 120, 0.15);
    border: 1px solid rgba(120, 120, 120, 0.2);
    border-radius: 99px;
    padding: 8px 16px;
    cursor: pointer;
    transition: transform 0.1s, background 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.ios-vab-btn:active {
    transform: scale(0.95);
    background: rgba(120, 120, 120, 0.25);
}

[data-theme="light"] .ios-vab-btn {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .ios-vab-btn:active {
    background: rgba(0, 0, 0, 0.1);
}

.ios-vab-btn-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.ios-vab-btn-icon svg {
    width: 100%;
    height: 100%;
}

.ios-vab-btn-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary);
}