/* --- RESET & BASE --- */
* {
    box-sizing: border-box;
}

:root {
    --page: #f4f4f4;
    --surface: #ffffff;
    --text: #1a1a1a;
    --muted: #666666;
    --line: #e0e0e0;
    --accent: #F97316;
    --accent-button: #EA580C;
    --accent-dark: #C2410C;
    --soft: #f0f0f0;
    --notice-bg: #fff3cd;
    --notice-border: #ffc107;
    --notice-text: #856404;
    --contact-bg: #e7f3ff;
    --contact-border: #0066cc;
    --code-bg: #f1f3f5;
    --badge-bg: #f1f7ee;
    --badge-border: #d8e4d3;
    --badge-text: #4e7949;
    --on-accent: #121212;
    --container: 1180px;
    color-scheme: light;
}

[data-theme="dark"] {
    --page: #121212;
    --surface: #1e1e1e;
    --text: #e8e8e8;
    --muted: #aaaaaa;
    --line: rgba(255, 255, 255, 0.06);
    --accent: #F97316;
    --accent-hover: #EA580C;
    --accent-dark: #C2410C;
    --soft: #2a2a2a;
    --notice-bg: #3d3418;
    --notice-border: #ffd166;
    --notice-text: #ffd166;
    --contact-bg: #1a2d4a;
    --contact-border: #4da6ff;
    --code-bg: #2d3748;
    --badge-bg: #293a28;
    --badge-border: #4d6c49;
    --badge-text: #b9e3b3;
    --on-accent: #121212;
    color-scheme: dark;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    -webkit-text-size-adjust: 100%;
    background: var(--page);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    line-height: 1.65;
}

button,
input {
    font: inherit;
}

button {
    cursor: pointer;
    transition: transform 160ms ease-out, opacity 160ms ease-out, background-color 160ms ease-out, border-color 160ms ease-out, color 160ms ease-out;
}

button:not(:disabled):active {
    transform: scale(0.97);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

button:disabled:hover,
button:disabled:focus-visible {
    transform: none;
}

/* --- SKIP LINK (a11y) --- */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: var(--on-accent);
    padding: 8px 16px;
    z-index: 10000;
    text-decoration: none;
    font-weight: bold;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
    outline: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

/* --- LAYOUT UTAMA --- */
.app-wrapper {
    display: flex;
    min-height: 100vh;
    background: var(--page);
}

.main-wrapper {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

/* --- DRAWER (geser dari kiri - semua layar) --- */
.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 50;
    display: none;
    opacity: 0;
    transition: opacity 0.3s;
}
.drawer-overlay.open {
    display: block;
    opacity: 1;
}

.drawer {
    position: fixed;
    top: 0;
    left: -300px;
    width: 280px;
    height: 100%;
    background: var(--surface);
    z-index: 60;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 24px 20px;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.drawer.open {
    left: 0;
}

.drawer .drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}
.drawer-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text);
}

.drawer-search {
    padding: 0 0 16px 0;
}
.drawer-search .search-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 30px;
    background: var(--soft);
    border: 1px solid transparent;
}
.drawer-search .search-bar input {
    border: none;
    outline: none;
    flex: 1;
    background: transparent;
    font-size: 0.85rem;
    color: var(--text);
}
.drawer-search .search-bar i {
    color: var(--muted);
}

.drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}
.drawer-nav a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--muted);
    font-weight: 500;
    font-size: 0.95rem;
    transition: background 0.15s;
    cursor: pointer;
}
.drawer-nav a:hover {
    background: rgba(249, 115, 22, 0.08);
}
.drawer-nav a i {
    width: 22px;
    text-align: center;
    font-size: 1.1rem;
}
.drawer-nav a.active {
    background: rgba(249, 115, 22, 0.12);
    color: var(--accent);
}
.drawer-nav a.active i {
    color: var(--accent);
}
.drawer-nav hr {
    border: none;
    border-top: 1px solid var(--line);
    margin: 8px 0;
}

.drawer-footer {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    font-size: 0.75rem;
    color: var(--muted);
}
.drawer .logo {gap: 10px
}
/* --- HAMBURGER (selalu tampil di semua layar) --- */
.hamburger {
    display: block;
    flex-shrink: 0;
    border: 0;
    background: transparent;
    color: var(--text);
    padding: 8px;
    font-size: 1.4rem;
    line-height: 1;
    min-width: 36px;
    text-align: center;
}
.hamburger:hover,
.hamburger:focus-visible {
    color: var(--accent);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* --- CONTAINER & HEADER --- */
.container {
    width: min(var(--container), calc(100% - 48px));
    margin: 0 auto;
}

.header {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    min-height: 68px;
    gap: 42px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
    color: var(--text);
    font-size: 1.34rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    text-decoration: none;
}
.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    display: block;
}
.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
    color: var(--text);
}
.logo-text span {
    color: var(--accent);
}
.logo i {
    color: var(--accent);
}

.header-search {
    display: flex;
    align-items: center;
    width: 205px;
    height: 34px;
    margin-left: auto;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--surface);
}
.header-search:focus-within {
    border-color: var(--accent);
    outline: 2px solid rgba(249, 115, 22, 0.22);
    outline-offset: 1px;
}
.header-search > span {
    padding-left: 10px;
    color: var(--muted);
    font-size: 1.1rem;
    line-height: 1;
}
.header-search input {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
    padding: 6px 9px;
    font-size: 0.82rem;
}

.mobile-menu-button {
    display: none;
    border: 0;
    background: transparent;
    color: var(--text);
    padding: 8px;
    font-size: 1.25rem;
}
.mobile-menu-button:hover,
.mobile-menu-button:focus-visible {
    color: var(--accent);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.mobile-nav {
    display: none;
    padding-bottom: 14px;
}
.mobile-nav[hidden] {
    display: none;
}
.mobile-nav a {
    display: block;
    padding: 6px 0;
}

/* --- GENRE FILTER SECTION --- */
.genre-filter-section {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 24px 0;
}

.section-subtitle {
    font-size: 1.1rem;
    margin: 0 0 16px;
    color: var(--text);
}

.genre-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 18px;
}
.genre-filters button {
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--muted);
    padding: 5px 11px;
    font-size: 0.78rem;
    transition: border-color 160ms ease-out, background-color 160ms ease-out, color 160ms ease-out;
}
.genre-filters button:hover,
.genre-filters button:focus-visible,
.genre-filters button.active {
    border-color: var(--accent-button);
    background: var(--accent-button);
    color: var(--on-accent);
}
.genre-filters button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* --- POPULAR SECTION --- */
.popular-section {
    margin: 32px 0;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 20px;
}
.section-header-with-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.section-header-with-link h2 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text);
}
.view-all-link {
    font-size: 0.85rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}
.view-all-link:hover,
.view-all-link:focus-visible {
    text-decoration: underline;
    color: var(--accent-dark);
}
.popular-songs-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.popular-song-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text);
    transition: transform 160ms ease-out, border-color 160ms ease-out;
}
.popular-song-row:hover,
.popular-song-row:focus-visible {
    transform: translateX(4px);
    border-color: var(--accent);
}
.popular-rank {
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--accent);
    min-width: 24px;
    text-align: center;
}
.popular-song-main {
    flex: 1;
    overflow: hidden;
}
.popular-song-title {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.popular-song-artist {
    font-size: 0.8rem;
    color: var(--muted);
}
.popular-views {
    font-size: 0.75rem;
    color: var(--muted);
    white-space: nowrap;
}

/* --- ALPHABET NAV --- */
.alphabet-section {
    border-bottom: 1px solid var(--line);
}
.alphabet-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 46px;
    overflow-x: auto;
    scrollbar-width: none;
}
.alphabet-nav::-webkit-scrollbar {
    display: none;
}
.alphabet-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-width: 28px;
    min-height: 28px;
    color: var(--text);
    font-size: 0.77rem;
    text-decoration: none;
}
.alphabet-nav a:hover,
.alphabet-nav a:focus-visible {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* --- HOME LAYOUT (full width, konten di tengah) --- */
.home-layout {
    padding: 42px 20px 56px 20px;
    max-width: 100%;
    margin: 0 auto;
}

.primary-column {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.intro-block {
    max-width: 670px;
    margin-bottom: 52px;
}
.intro-block h1 {
    margin: 0 0 12px;
    font-size: clamp(1.55rem, 2.4vw, 2rem);
    letter-spacing: -0.035em;
    line-height: 1.2;
}
.intro-block p {
    max-width: 620px;
    margin: 0;
    color: var(--muted);
    font-size: 0.98rem;
}

.content-block + .content-block {
    margin-top: 44px;
    padding-top: 30px;
    border-top: 1px solid var(--line);
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 10px;
    border-bottom: 2px solid var(--accent);
}
.section-heading h2 {
    margin: 0;
    padding-bottom: 8px;
    font-size: 1.1rem;
    line-height: 1.2;
}
.result-count {
    color: var(--muted);
    font-size: 0.76rem;
}

.link-list {
    border-top: 1px solid var(--line);
}

.catalog-shell.is-loading {
    min-height: 400px; /* Ukuran realistis untuk skeleton */
    overflow: hidden;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0,
        transparent 53px,
        var(--line) 53px,
        var(--line) 54px
    );
    animation: pulse 1.5s infinite ease-in-out; /* Efek berkedip halus */
}

@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}
.catalog-shell.is-loading .loading-state {
    position: absolute;
    top: 12px;
    left: 0;
    z-index: 1;
    margin: 0;
}

.reference-link {
    display: block;
    min-height: 44px;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    color: var(--accent-dark);
    font-size: 0.88rem;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.reference-link:hover,
.reference-link:focus-visible {
    background: var(--soft);
    color: var(--accent-dark);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* --- SONG ROW (daftar lagu) --- */
.song-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 92px 46px 18px;
    gap: 15px;
    align-items: center;
    min-height: 54px;
    border-bottom: 1px solid var(--line);
    color: var(--text);
    text-decoration: none;
}
.song-row:hover,
.song-row:focus-visible {
    background: var(--soft);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.song-main {
    min-width: 0;
}
.song-title {
    display: block;
    overflow: hidden;
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #E8E8E8;
}
.song-artist {
    color: #AAAAAA;
    font-size: 0.78rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.song-key,
.song-arrow,
.result-count,
.loading-state {
    color: var(--muted);
    font-size: 0.78rem;
}
.song-meta {
    width: fit-content;
    padding: 1px 6px;
    border: 1px solid var(--badge-border);
    border-radius: 3px;
    background: var(--badge-bg);
    color: var(--badge-text);
    font-size: 0.7rem;
}
.song-key {
    text-align: center;
}
.song-arrow {
    color: var(--accent);
    font-size: 1rem;
    text-align: right;
}

.loading-state {
    margin: 0;
    padding: 18px 0;
}

.search-results {
    margin-bottom: 10px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--surface);
}
.search-results[hidden] {
    display: none;
}
.search-results a {
    display: block;
    padding: 8px 10px;
    border-bottom: 1px solid var(--line);
    color: var(--text);
    text-decoration: none;
}
.search-results a:last-child {
    border-bottom: 0;
}
.search-results a:hover,
.search-results a:focus-visible {
    background: var(--soft);
    color: var(--accent-dark);
}
.search-empty {
    margin: 0;
    padding: 9px 10px;
    color: var(--muted);
}

/* --- SIDEBAR (kanan) -- hanya untuk halaman detail --- */
.sidebar {
    display: grid;
    gap: 34px;
}
.sidebar-block h2 {
    border-bottom: 2px solid var(--accent);
}
.sidebar-list {
    border-top: 1px solid var(--line);
}
.sidebar-list a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    color: var(--accent-dark);
    font-size: 0.82rem;
    text-decoration: none;
}
.sidebar-list a:hover,
.sidebar-list a:focus-visible {
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* --- FOOTER --- */
.footer {
    background-color: var(--surface);
    border-top: 1px solid var(--line);
    padding: 3rem 1rem 1rem;
    margin-top: 4rem;
    font-size: 0.9rem;
}

.footer-container {
    max-width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-brand {
    color: var(--accent);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-description {
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0;
}

.footer-section h4 {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    margin: 1rem 0 0.8rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--line);
    font-size: 0.8rem;
    color: var(--muted);
}

.footer-copyright a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-copyright a:hover {
    text-decoration: underline;
}

/* --- DETAIL PAGE --- */
.detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 56px;
    align-items: start;
    padding-top: 28px;
    padding-bottom: 56px;
}

.breadcrumb {
    display: flex;
    gap: 9px;
    margin-bottom: 14px;
    color: var(--muted);
    font-size: 0.76rem;
}
.breadcrumb a {
    color: var(--accent);
    text-decoration: none;
}
.breadcrumb a:hover,
.breadcrumb a:focus-visible {
    text-decoration: underline;
}

.detail-primary h1 {
    margin: 0;
    font-size: clamp(1.55rem, 2.4vw, 2rem);
    letter-spacing: -0.035em;
    line-height: 1.2;
}
.detail-artist {
    margin: 4px 0 2px;
    color: var(--muted);
}
.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px 18px;
    margin-bottom: 20px;
    color: var(--muted);
    font-size: 0.76rem;
}
.detail-meta span + span {
    position: relative;
}
.detail-meta span + span::before {
    position: absolute;
    top: 50%;
    left: -11px;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--accent);
    content: "";
    transform: translateY(-50%);
}

.control-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 10px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}
.transpose-box,
.autoscroll-box {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--muted);
    font-size: 0.78rem;
}
.transpose-box button,
.btn-scroll,
.scroll-speed button {
    border: 1px solid var(--line);
    border-radius: 3px;
    background: var(--surface);
    color: var(--text);
    padding: 4px 8px;
}
.transpose-box button:hover,
.transpose-box button:focus-visible,
.btn-scroll:hover,
.btn-scroll:focus-visible,
.scroll-speed button:hover,
.scroll-speed button:focus-visible {
    border-color: var(--accent);
    color: var(--accent-dark);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
#keyNow {
    min-width: 30px;
    color: var(--accent-dark);
    font-weight: 700;
    text-align: center;
}
.btn-scroll.scrolling {
    border-color: var(--accent);
    color: var(--accent-dark);
}
.scroll-speed {
    display: flex;
    align-items: center;
    gap: 6px;
}

.chord-diagram-panel {
    display: grid;
    gap: 14px;
    max-width: 760px;
    margin-top: 24px;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface);
}
.diagram-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
}
.eyebrow {
    margin: 0 0 3px;
    color: var(--accent-dark);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.diagram-heading h2 {
    margin: 0;
    font-size: 1.05rem;
}
.diagram-picker-label {
    display: grid;
    gap: 4px;
    color: var(--muted);
    font-size: 0.72rem;
}
#diagramChord {
    min-width: 92px;
    padding: 6px 8px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--bg);
    color: var(--text);
    font: inherit;
    font-weight: 700;
}
.chord-diagram {
    display: grid;
    min-height: 205px;
    place-items: center;
    color: var(--muted);
    font-size: 0.82rem;
    text-align: center;
}
.chord-diagram svg {
    width: min(100%, 190px);
    height: auto;
}
.diagram-title {
    fill: var(--text);
    font: 700 14px "Courier New", monospace;
}
.diagram-string,
.diagram-fret,
.diagram-nut {
    stroke: var(--muted);
    stroke-width: 1.4;
    vector-effect: non-scaling-stroke;
}
.diagram-nut {
    stroke: var(--text);
    stroke-width: 4.5;
    stroke-linecap: round;
}
.diagram-barre {
    stroke: var(--accent);
    stroke-width: 8;
    stroke-linecap: round;
    opacity: 0.95;
}
.diagram-dot {
    fill: var(--accent);
    stroke: var(--accent-dark);
    stroke-width: 1.2;
}
.diagram-finger {
    fill: #fff;
    font: 700 9px Arial, sans-serif;
}
.diagram-marker,
.diagram-fret-label,
.diagram-muted {
    fill: var(--muted);
    font: 700 11px Arial, sans-serif;
}
.diagram-fret-label {
    fill: var(--accent-dark);
    font-size: 10px;
}
.diagram-note {
    margin: 0;
    color: var(--muted);
    font-size: 0.72rem;
    line-height: 1.5;
}

.lirik-area {
    width: 100%;
    max-width: 760px;
    min-width: 0;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    min-height: 1100px;
    padding: 22px 0;
    font-family: "Courier New", Courier, monospace;
    font-size: 0.95rem;
    line-height: 1.45;
    -webkit-text-size-adjust: 100%;
}
.baris-lirik {
    margin-bottom: 14px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    min-width: fit-content;
}
.chord-lirik {
    display: block;
    min-height: 1.3em;
    color: var(--accent-dark);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: pre;
}
.teks-lirik {
    display: block;
    white-space: pre;
    color: var(--text);
}

.detail-sidebar {
    padding-top: 38px;
}

/* --- CHORD DIAGRAM GRID --- */
.chord-diagrams-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 0;
}

.chord-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 7px 5px 5px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--surface);
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.1s;
    color: var(--text);
}

.chord-card:hover,
.chord-card:focus-visible {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 30%, transparent);
    transform: translateY(-1px);
    outline: none;
}

.chord-card:active {
    transform: translateY(0);
}

.chord-diagram-svg {
    display: block;
    color: var(--text);
}

/* Chord label di lirik: interaktif (button) */
.chord-lirik {
    display: inline-block;
    min-height: 1.2em;
    padding: 1px 4px;
    border: 1px solid color-mix(in srgb, var(--accent-dark) 35%, var(--line));
    border-radius: 3px;
    background: color-mix(in srgb, var(--accent) 12%, var(--surface));
    color: var(--accent-dark);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: pre;
    margin: 0;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    border-radius: 3px;
    transition: color 0.12s, background 0.12s, border-color 0.12s, text-decoration 0.12s;
}

.chord-lirik:hover,
.chord-lirik:focus-visible {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 22%, var(--surface));
    color: var(--accent-dark);
    text-decoration: underline;
    text-underline-offset: 2px;
    outline: none;
}

/* --- CHORD MODAL --- */
.chord-modal {
    border: none;
    border-radius: 14px;
    background: var(--surface);
    color: var(--text);
    padding: 0;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
    max-width: 260px;
    width: 90%;
}

.chord-modal::backdrop {
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(3px);
}

.chord-modal-content {
    display: flex;
    flex-direction: column;
}

.chord-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 10px;
    border-bottom: 1px solid var(--line);
}

.chord-modal-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-dark);
}

.btn-close-modal {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 4px 6px;
    border-radius: 6px;
    line-height: 1;
    transition: background 0.12s, color 0.12s;
}

.btn-close-modal:hover,
.btn-close-modal:focus-visible {
    background: var(--soft);
    color: var(--text);
}

.chord-modal-body {
    display: flex;
    justify-content: center;
    padding: 16px 20px 24px;
}

.chord-modal-body .chord-diagram-svg {
    color: var(--text);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --- RESPONSIVE --- */
@media (max-width: 800px) {
    .container {
        width: min(100% - 32px, var(--container));
    }
    .header-inner {
        flex-wrap: wrap;
        gap: 0 20px;
        padding: 12px 0;
    }
    .header-search {
        order: 3;
        width: 100%;
        height: 38px;
        margin: 12px 0 0;
    }
    .mobile-menu-button {
        display: block;
        margin-left: auto;
    }
    .theme-toggle {
        margin-right: 4px;
    }
    .mobile-nav:not([hidden]) {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0 24px;
        border-top: 1px solid var(--line);
    }
    .alphabet-nav {
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 3px 17px;
        overflow: hidden;
        padding: 10px 0;
    }
    .home-layout {
        padding-top: 30px;
        padding-bottom: 80px;
    }
    .footer {
        padding: 2rem 1rem 1rem;
        margin-top: 3rem;
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .footer-brand {
        font-size: 1.1rem;
    }
    .detail-layout {
        grid-template-columns: 1fr;
        gap: 34px;
        padding-top: 30px;
        padding-bottom: 80px;
    }
    .intro-block {
        margin-bottom: 32px;
    }
    .reference-link {
        min-height: 45px;
        padding: 11px 0;
        font-size: 0.86rem;
    }
    .sidebar {
        display: none;
    }
    .detail-sidebar {
        padding-top: 0;
    }
    .control-bar {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }
    .detail-primary .lirik-area {
        padding-top: 16px;
        font-size: 0.9rem;
    }
    .lirik-area {
        min-height: 1100px;
        -webkit-text-size-adjust: 100%;
    }
    .baris-lirik {
        margin-bottom: 12px;
        gap: 3px;
    }
    .chord-lirik {
        font-size: 0.8rem;
        letter-spacing: 0.01em;
    }
    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
        padding: 16px 0 80px;
    }
    .footer-inner nav {
        gap: 12px 18px;
    }
}

@media (max-width: 520px) {
    .intro-block h1,
    .detail-primary h1 {
        font-size: 1.48rem;
    }
    .intro-block p {
        font-size: 0.9rem;
    }
    .song-row {
        grid-template-columns: minmax(0, 1fr) 28px 18px;
        gap: 10px;
        min-height: 58px;
    }
    .catalog-shell.is-loading {
        min-height: 5800px;
    }
    .song-meta {
        display: none;
    }
    .footer-inner nav {
        gap: 10px 14px;
    }
    .genre-filters {
        gap: 6px;
    }
    .genre-filters button {
        padding: 5px 9px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        transition-delay: 0s !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}

/* --- THEME TOGGLE --- */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text);
    padding: 5px 8px;
    line-height: 1;
    transition: border-color 160ms ease-out, color 160ms ease-out, background-color 160ms ease-out;
}
.theme-toggle:hover,
.theme-toggle:focus-visible {
    border-color: var(--accent);
    color: var(--accent-dark);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.theme-toggle .icon-sun {
    display: none;
}
[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}
[data-theme="dark"] .theme-toggle .icon-sun {
    display: inline;
}
/* PWA-008: Offline Indicator Styles */
.offline-banner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #ef4444; /* Merah untuk warning */
    color: white;
    text-align: center;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    z-index: 9999; /* Pastikan selalu di paling atas */
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: transform 0.3s ease-in-out;
}

/* Saat muncul, geser sedikit ke bawah agar tidak tertutup header (jika header fixed) */
body.has-offline-banner .header {
    margin-top: 36px; /* Sesuaikan dengan tinggi banner */
}