/* Root font scaling: ALL text respects the font-size toggle */
:root {
    --font-scale: 1;
    --font-body-base: 16px;

    /* Shared color tokens */
    --color-stop: #ff4b4b;   /* Red for stop/error */
    --color-alert: #ffc857;  /* Yellow for alert */
    --color-go: #35d07f;     /* Green for go/success */
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-pill: 999px;

    --shadow-soft: 0 18px 35px rgba(0, 0, 0, 0.45);
    --transition-fast: 160ms ease-out;
    --transition-med: 220ms ease-out;
}

/* The critical change: html font-size uses the scalable variable.
   All rem-based text now grows/shrinks together. */
html {
    font-size: calc(var(--font-body-base) * var(--font-scale));
}

/* Themes: 4 dark + 4 light; Dark Mode Sky Blue is the default */
body {
    margin: 0;
    font-family: "Lato", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem; /* 1rem tracks html size, which we scale */
    line-height: 1.6;
    background-color: var(--bg-color, #020817);
    color: var(--text-color, #e2e8f0);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Dark themes */
body.theme-dark-sky {
    --bg-color: #020817;
    --bg-elevated: #071826;
    --bg-elevated-soft: #0b2233;
    --accent-color: #38bdf8;
    --accent-soft: rgba(56, 189, 248, 0.18);
    --text-color: #e5f4ff;
    --muted-text: #8eaac7;
    --border-color: rgba(148, 163, 184, 0.4);
    --link-color: #7dd3fc;
}

body.theme-dark-emerald {
    --bg-color: #020617;
    --bg-elevated: #022c22;
    --bg-elevated-soft: #064e3b;
    --accent-color: #34d399;
    --accent-soft: rgba(52, 211, 153, 0.22);
    --text-color: #ecfdf5;
    --muted-text: #86efac;
    --border-color: rgba(45, 212, 191, 0.5);
    --link-color: #6ee7b7;
}

body.theme-dark-amber {
    --bg-color: #111827;
    --bg-elevated: #1f2937;
    --bg-elevated-soft: #0f172a;
    --accent-color: #fbbf24;
    --accent-soft: rgba(251, 191, 36, 0.18);
    --text-color: #f9fafb;
    --muted-text: #facc15;
    --border-color: rgba(252, 211, 77, 0.4);
    --link-color: #fde68a;
}

body.theme-dark-magenta {
    --bg-color: #0f0a1f;
    --bg-elevated: #1a1031;
    --bg-elevated-soft: #251642;
    --accent-color: #e879f9;
    --accent-soft: rgba(232, 121, 249, 0.22);
    --text-color: #fdf2ff;
    --muted-text: #e9d5ff;
    --border-color: rgba(216, 180, 254, 0.45);
    --link-color: #f9a8ff;
}

/* Light themes */
body.theme-light-cream {
    --bg-color: #fefcf5;
    --bg-elevated: #ffffff;
    --bg-elevated-soft: #fdf6e3;
    --accent-color: #0f766e;
    --accent-soft: rgba(15, 118, 110, 0.06);
    --text-color: #111827;
    --muted-text: #6b7280;
    --border-color: rgba(209, 213, 219, 0.9);
    --link-color: #0369a1;
}

body.theme-light-silver {
    --bg-color: #f3f4f6;
    --bg-elevated: #ffffff;
    --bg-elevated-soft: #e5e7eb;
    --accent-color: #111827;
    --accent-soft: rgba(17, 24, 39, 0.08);
    --text-color: #111827;
    --muted-text: #6b7280;
    --border-color: rgba(156, 163, 175, 0.8);
    --link-color: #2563eb;
}

body.theme-light-ocean {
    --bg-color: #ecfeff;
    --bg-elevated: #f9fafb;
    --bg-elevated-soft: #e0f2fe;
    --accent-color: #0369a1;
    --accent-soft: rgba(3, 105, 161, 0.08);
    --text-color: #0f172a;
    --muted-text: #64748b;
    --border-color: rgba(148, 163, 184, 0.7);
    --link-color: #0284c7;
}

body.theme-light-sand {
    --bg-color: #fff7ed;
    --bg-elevated: #ffffff;
    --bg-elevated-soft: #ffedd5;
    --accent-color: #9a3412;
    --accent-soft: rgba(194, 65, 12, 0.06);
    --text-color: #1f2937;
    --muted-text: #6b7280;
    --border-color: rgba(248, 189, 132, 0.8);
    --link-color: #ea580c;
}

/* Typographic hierarchy */
h1,
h2,
h3 {
    margin: 0;
    font-weight: 500;
}

h1.page-title {
    font-family: "Gabriela", "Times New Roman", ui-serif, Georgia, serif;
    font-size: 1.9rem;
    line-height: 1.25;
    letter-spacing: 0.02em;
    text-align: center;
    color: var(--text-color);
    text-shadow: 0 16px 38px rgba(0, 0, 0, 0.65);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.page-title-primary {
    display: block;
    font-size: 1.4em;
}

.page-title-secondary {
    display: block;
    font-size: 0.72em;
    font-weight: 400;
    color: var(--muted-text);
}

p {
    margin: 0 0 0.75rem;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color var(--transition-fast), text-shadow var(--transition-fast), transform var(--transition-fast);
}

a:hover,
a:focus-visible {
    color: var(--accent-color);
    text-shadow: 0 0 12px rgba(56, 189, 248, 0.35);
    transform: translateY(-0.5px);
}

ul,
ol {
    margin: 0 0 0.75rem 1.25rem;
    padding: 0;
}

/* Layout shell */
.page-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 60%),
        radial-gradient(circle at bottom right, rgba(8, 47, 73, 0.8), transparent 55%);
    padding: 0.75rem;
    box-sizing: border-box;
}

.site-main {
    max-width: 980px;
    width: 100%;
    margin: 0.75rem auto 2.5rem;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    padding: 0.4rem 0.75rem;
    background-color: var(--accent-color);
    color: #ffffff;
    border-radius: var(--radius-pill);
    transform: translateY(-150%);
    transition: transform 150ms ease-out, box-shadow 150ms ease-out;
    z-index: 40;
    font-size: 0.85rem;
}

.skip-link:focus {
    transform: translateY(0);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Header and hero */
.site-header {
    max-width: 980px;
    width: 100%;
    margin: 0 auto;
}

.banner-link {
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    margin-bottom: 0.75rem;
    transform: translateY(0);
    transition: transform var(--transition-med), box-shadow var(--transition-med);
}

.banner-link:hover,
.banner-link:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 24px 45px rgba(0, 0, 0, 0.6);
}

.banner-image {
    display: block;
    width: 100%;
    height: auto;
}

/* Hero section */
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
    gap: 1.25rem;
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-elevated-soft));
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(16px);
    margin-bottom: 1.25rem;
    animation: fadeInUp 480ms var(--transition-med);
}

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-cover {
    width: 100%;
    max-width: 260px;
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
    object-fit: cover;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.hero-meta {
    margin-top: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.hero-subtitle {
    font-size: 0.9rem;
    color: var(--muted-text);
}

/* Buttons and badges */
.icon-button {
    border: 1px solid rgba(148, 163, 184, 0.7);
    background: radial-gradient(circle at top, rgba(148, 163, 184, 0.2), transparent 65%), var(--bg-elevated-soft);
    border-radius: 999px;
    padding: 0.25rem 0.55rem;
    font-size: 1rem;
    cursor: pointer;
    color: var(--text-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.55);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.icon-button:hover,
.icon-button:focus-visible {
    transform: translateY(-1px) scale(1.03);
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.75);
    outline: none;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 0.95rem;
    border-radius: var(--radius-pill);
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    background-color: var(--accent-color);
    color: #0b1120;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.7);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast),
        color var(--transition-fast), border-color var(--transition-fast);
    text-decoration: none;
    gap: 0.35rem;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1.5px);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.9);
}

.button-outline {
    background-color: transparent;
    color: var(--accent-color);
    border-color: rgba(148, 163, 184, 0.8);
}

.button-outline:hover,
.button-outline:focus-visible {
    background-color: var(--accent-soft);
    border-color: var(--accent-color);
}

.button-accent {
    background-color: var(--accent-color);
    color: #020617;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-pill);
    padding: 0.15rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.03em;
}

.badge-format {
    background-color: var(--accent-soft);
    color: var(--accent-color);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.15rem 0.65rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.status-success {
    background-color: rgba(53, 208, 127, 0.16);
    color: var(--color-go);
    border: 1px solid rgba(53, 208, 127, 0.6);
}

/* File sizes */
.file-size {
    font-size: 0.78rem;
    color: var(--color-alert);
    margin-left: 0.35rem;
}

/* Cards */
.card {
    background-color: rgba(3, 7, 18, 0.76);
    background-image: linear-gradient(135deg, rgba(148, 163, 184, 0.12), rgba(15, 23, 42, 0.7));
    border-radius: var(--radius-lg);
    padding: 1rem 0.9rem 1.1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(18px);
}

.card-header {
    margin-bottom: 0.85rem;
}

.card-title {
    font-size: 1.35rem;
    font-family: "Gabriela", "Times New Roman", ui-serif, Georgia, serif;
    color: var(--text-color);
}

.card-subtitle {
    font-size: 0.9rem;
    color: var(--muted-text);
}

.card-actions {
    margin-top: 0.65rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.card-body {
    font-size: 0.95rem;
}

/* Lists and grids */
.link-list {
    list-style: none;
    margin: 0;
}

.link-list li + li {
    margin-top: 0.3rem;
}

.two-column-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.25rem;
}

.latest-links .link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1rem;
    margin-bottom: 0.4rem;
}

.collection-list {
    list-style: decimal;
    margin-left: 1.2rem;
}

.collection-item + .collection-item {
    margin-top: 1.1rem;
}

.collection-title {
    font-size: 1.05rem;
    font-family: "Gabriela", "Times New Roman", ui-serif, Georgia, serif;
}

.collection-meta {
    font-size: 0.85rem;
    color: var(--muted-text);
}

.song-list {
    list-style: disc;
    margin-left: 1.3rem;
    margin-top: 0.3rem;
}

.song-list li + li {
    margin-top: 0.25rem;
}

.media-link {
    margin-bottom: 0.6rem;
}

/* Responsive: mobile focused */
@media (max-width: 768px) {
    .page-shell {
        padding: 0.5rem;
    }

    .hero {
        grid-template-columns: minmax(0, 1fr);
        text-align: center;
        padding: 1rem;
    }

    .hero-cover {
        max-width: 220px;
    }

    .card {
        padding: 0.85rem 0.75rem 0.95rem;
    }
}

@media (max-width: 480px) {
    h1.page-title {
        font-size: 1.6rem;
    }

    .latest-links .link-row {
        gap: 0.35rem 0.9rem;
    }

    .card-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .button,
    .button-outline {
        width: 100%;
    }
}

/* Focus outlines */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}