/* Hamburger button */
.hamburger {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: 2px solid var(--gold);
    color: var(--gold);
    font-size: 1.5rem;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 10;
}

.hamburger:hover {
    background: rgba(200, 150, 15, 0.2);
}

/* Side drawer overlay */
.drawer-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(62, 39, 35, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.drawer-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Side drawer */
.drawer {
    position: fixed;
    top: 0;
    left: -300px;
    width: 280px;
    max-width: 80vw;
    height: 100%;
    background: var(--cream);
    z-index: 1000;
    transition: left 0.3s ease;
    box-shadow: 4px 0 20px rgba(62, 39, 35, 0.3);
    overflow-y: auto;
}

.drawer.open {
    left: 0;
}

.drawer-header {
    background: linear-gradient(135deg, var(--gold), var(--deep-saffron));
    color: var(--gold-light);
    padding: 1.5rem 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.drawer-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--gold-light);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
}

.drawer-list {
    list-style: none;
    padding: 0.5rem 0;
}

.drawer-list li {
    border-bottom: 1px solid rgba(200, 150, 15, 0.2);
}

.drawer-list a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--dark);
    text-decoration: none;
    font-size: 1rem;
    transition: background 0.2s;
}

.drawer-list a:hover {
    background: var(--parchment);
}

.drawer-list .verse-count {
    font-size: 0.8rem;
    color: var(--gold);
    margin-left: 0.5rem;
}

/* Main content area */
main {
    max-width: 800px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

/* Chapter divider */
.chapter-divider {
    text-align: center;
    padding: 2rem 0 1rem;
    position: relative;
}

.chapter-divider:first-child {
    padding-top: 0.5rem;
}

.chapter-divider h2 {
    font-size: 1.3rem;
    color: var(--gold);
    font-weight: 600;
    display: inline-block;
    padding: 0 1.5rem;
    background: var(--cream);
    position: relative;
    z-index: 1;
}

.chapter-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--gold), transparent);
}

/* Verse card */
.verse-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(62, 39, 35, 0.12);
    margin-bottom: 1.5rem;
    overflow: hidden;
    position: relative;
    transition: box-shadow 0.3s;
}

.verse-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--gold), var(--saffron), var(--gold));
}

.verse-card.in-group {
    margin-bottom: 1rem;
    box-shadow: 0 2px 12px rgba(62, 39, 35, 0.08);
}

.verse-number {
    position: absolute;
    top: 0.5rem;
    right: 0.75rem;
    font-size: 0.75rem;
    color: var(--gold);
    font-weight: 600;
    opacity: 0.6;
}

.verse-sanskrit {
    padding: 0.8rem 1.5rem;
    font-size: 0.98rem;
    line-height: 1.9;
    color: var(--dark);
    text-align: center;
    white-space: pre-line;
}

.verse-divider {
    height: 2px;
    margin: 0 2rem;
    background: linear-gradient(to right, transparent, var(--gold), transparent);
}

.verse-meaning {
    padding: 1rem 1.5rem 0.5rem;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--dark);
}

/* Context notes */
.verse-context {
    margin: 0.5rem 1.5rem 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.93rem;
    line-height: 1.7;
    color: var(--dark);
    opacity: 0.75;
    font-style: italic;
    border-left: 3px solid var(--saffron);
    background: rgba(245, 230, 211, 0.3);
    border-radius: 0 6px 6px 0;
    white-space: pre-line;
}

.context-label {
    font-weight: 600;
    color: var(--gold);
    font-size: 0.85rem;
}

/* Cross-references */
.verse-references {
    padding: 0.3rem 1.5rem 1rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.ref-link {
    color: var(--blue);
    text-decoration: none;
    border-bottom: 1px dotted var(--blue);
    font-weight: 600;
    padding: 0.1rem 0.3rem;
    border-radius: 2px;
    transition: all 0.2s;
    cursor: pointer;
}

.ref-link:hover {
    background: rgba(21, 101, 192, 0.1);
}

/* Highlight animation for cross-ref navigation */
.verse-card.highlight {
    animation: goldPulse 2s ease-out;
}

@keyframes goldPulse {
    0% { box-shadow: 0 0 0 0 rgba(200, 150, 15, 0.6); }
    30% { box-shadow: 0 0 0 8px rgba(200, 150, 15, 0.3); }
    100% { box-shadow: 0 4px 20px rgba(62, 39, 35, 0.12); }
}

/* --- Verse Group Section (looks like a verse card) --- */
.verse-group-section {
    overflow: visible;
}

.verse-group-title {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    padding: 0 1.5rem 0.5rem;
}

.group-toggle {
    text-align: center;
    padding: 0.5rem 1.5rem 0.8rem;
}

.btn-toggle-verses {
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--gold);
    background: none;
    border: 1px solid var(--gold);
    border-radius: 6px;
    padding: 0.4rem 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-toggle-verses:hover {
    background: var(--gold);
    color: var(--cream);
}

.btn-toggle-verses:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.group-verses {
    padding: 0 1rem 1rem;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    overflow: hidden;
}

.group-verses.collapsed {
    max-height: 0;
    opacity: 0;
    padding: 0 1rem;
}

/* Loading state */
.loading {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--dark);
    font-size: 1.1rem;
}

.loading .spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--parchment);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--dark);
    opacity: 0.6;
}

.empty-state .om-large {
    font-size: 4rem;
    display: block;
    margin-bottom: 1rem;
    opacity: 0.3;
}

/* Responsive */
@media (max-width: 600px) {
    main { padding: 1rem 0.5rem; }
    .verse-card { border-radius: 8px; margin-bottom: 1rem; }
    .verse-card.in-group { margin-bottom: 0.8rem; }
    .verse-sanskrit { font-size: 0.9rem; padding: 0.5rem 1rem 0.8rem; }
    .verse-meaning { font-size: 0.95rem; padding: 0.8rem 1rem 0.3rem; }
    .verse-context { margin: 0.4rem 1rem 0.4rem; font-size: 0.88rem; }
    .verse-references { padding: 0.3rem 1rem 0.8rem; }
    .verse-number { top: 0.4rem; right: 0.5rem; font-size: 0.7rem; }
    .verse-divider { margin: 0 1rem; }
    .chapter-divider h2 { font-size: 1.1rem; }
    .verse-group-title { font-size: 1rem; }
    .group-verses { padding: 0 0.5rem 0.8rem; }
}