/* ═══════════════════════════════════════════
   Horostore — Design System
   Mobile-first, Dark Mode, Inter + Thai Typography
   ═══════════════════════════════════════════ */

/* ── CSS Custom Properties ──────────────── */
:root {
    --bg: #FFFFFF;
    --bg-secondary: #F5F5F7;
    --bg-card: #FFFFFF;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --text-tertiary: #AEAEB2;
    --accent: #0071E3;
    --accent-hover: #0077ED;
    --moon-gold: #C4A35A;
    --good: #34C759;
    --bad: #FF3B30;
    --moderate: #FF9500;
    --neutral: #8E8E93;
    --divider: #D2D2D7;
    --shadow: rgba(0, 0, 0, 0.04);
    --shadow-md: rgba(0, 0, 0, 0.08);
    --card-radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 8px;
    --font: 'Inter', 'Noto Sans Thai', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    /* Tradition accent colors */
    --tradition-thai: #C4A35A;
    --tradition-lanna: #8B5E3C;
    --tradition-chinese: #DC2626;
    --tradition-hijri: #059669;
    --tradition-hebrew: #2563EB;
    --tradition-universal: #6B7280;

    /* Spacing scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Typography scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #000000;
        --bg-secondary: #1C1C1E;
        --bg-card: #1C1C1E;
        --text-primary: #F5F5F7;
        --text-secondary: #98989D;
        --text-tertiary: #636366;
        --accent: #0A84FF;
        --accent-hover: #409CFF;
        --moon-gold: #D4AF37;
        --good: #30D158;
        --bad: #FF453A;
        --moderate: #FF9F0A;
        --neutral: #98989D;
        --divider: #38383A;
        --shadow: rgba(0, 0, 0, 0.3);
        --shadow-md: rgba(0, 0, 0, 0.5);

        --tradition-thai: #D4AF37;
        --tradition-lanna: #A67C52;
        --tradition-chinese: #EF4444;
        --tradition-hijri: #34D399;
        --tradition-hebrew: #60A5FA;
        --tradition-universal: #9CA3AF;
    }
}

/* ── Reset ──────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── Layout ─────────────────────────────── */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ── Header ─────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 0.5px solid var(--divider);
    padding: 12px var(--space-md);
}

@supports (backdrop-filter: blur(20px)) {
    .site-header {
        background: color-mix(in srgb, var(--bg) 72%, transparent);
    }
}

.header-inner {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.header-brand-icon {
    font-size: 1.3rem;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--text-sm);
}

.header-nav a {
    color: var(--text-secondary);
    font-weight: 500;
}

.header-nav a.active { color: var(--accent); }

/* Language Switcher */
.lang-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border: 1.5px solid var(--divider);
    border-radius: 20px;
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--text-xs);
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.15s;
}

.lang-btn:hover {
    border-color: var(--text-secondary);
}

.lang-btn svg {
    width: 14px;
    height: 14px;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    background: var(--bg-card);
    border: 0.5px solid var(--divider);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 24px var(--shadow-md);
    min-width: 140px;
    padding: 4px;
    z-index: 200;
}

.lang-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 8px 12px;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: background 0.1s;
}

.lang-dropdown a:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.lang-dropdown a.current {
    color: var(--accent);
}

/* ── Hero Section ───────────────────────── */
.hero {
    text-align: center;
    padding: var(--space-xl) 0 var(--space-lg);
}

.hero-date {
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-xs);
}

.hero-date-sub {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.hero-moon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--card-radius);
    margin: 0 auto;
    max-width: 380px;
}

.hero-moon-emoji {
    font-size: 2.8rem;
    line-height: 1;
}

.hero-moon-info {
    text-align: left;
}

.hero-moon-phase {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--moon-gold);
}

.hero-moon-detail {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ── Score Circle (Homepage) ────────────── */
.score-circle-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: var(--space-lg) auto;
}

.score-circle {
    position: relative;
    width: 140px;
    height: 140px;
}

.score-circle svg {
    transform: rotate(-90deg);
    width: 140px;
    height: 140px;
}

.score-circle-bg {
    fill: none;
    stroke: var(--bg-secondary);
    stroke-width: 8;
}

.score-circle-fill {
    fill: none;
    stroke-width: 8;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease-out;
}

.score-circle-fill.good { stroke: var(--good); }
.score-circle-fill.bad { stroke: var(--bad); }
.score-circle-fill.moderate { stroke: var(--moderate); }
.score-circle-fill.neutral { stroke: var(--neutral); }

.score-circle-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-circle-value {
    font-size: var(--text-3xl);
    font-weight: 700;
    line-height: 1;
}

.score-circle-max {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.score-circle-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-top: var(--space-sm);
}

/* ── Quick Glance Grid (Homepage) ───────── */
.glance-section {
    margin: var(--space-xl) 0;
}

.section-title {
    font-size: var(--text-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-top: -12px;
    margin-bottom: var(--space-md);
}

.glance-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.glance-card {
    background: var(--bg-card);
    border: 0.5px solid var(--divider);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    transition: transform 0.15s;
}

.glance-card-label {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
}

.glance-card-value {
    font-size: var(--text-lg);
    font-weight: 600;
    line-height: 1.3;
}

.glance-card-detail {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Color swatch for lucky color card */
.color-swatch {
    display: inline-block;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--divider);
    vertical-align: middle;
    margin-right: var(--space-sm);
}

/* ── Calendar Strip (Homepage) ──────────── */
.calendar-strip {
    display: flex;
    gap: var(--space-sm);
    overflow-x: auto;
    padding: var(--space-sm) 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.calendar-strip::-webkit-scrollbar { display: none; }

.calendar-card {
    flex: 0 0 auto;
    min-width: 120px;
    background: var(--bg-card);
    border: 0.5px solid var(--divider);
    border-radius: var(--radius-sm);
    padding: 12px var(--space-md);
    text-align: center;
}

.calendar-card-tradition {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    margin-bottom: var(--space-xs);
}

.calendar-card-value {
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.3;
}

.calendar-card-badge {
    display: inline-block;
    margin-top: var(--space-xs);
    padding: 1px 8px;
    background: color-mix(in srgb, var(--tradition-thai) 15%, transparent);
    color: var(--tradition-thai);
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
}

/* ── Deep Dive Preview Cards ────────────── */
.deep-dive-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.deep-dive-card {
    background: var(--bg-card);
    border: 0.5px solid var(--divider);
    border-radius: var(--radius-sm);
    padding: 12px var(--space-md);
    border-left: 3px solid var(--tradition-thai);
}

.deep-dive-card-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.deep-dive-card-value {
    font-size: var(--text-sm);
    font-weight: 600;
}

/* ── Tradition Showcase Cards ───────────── */
.tradition-showcase {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.showcase-card {
    background: var(--bg-card);
    border: 0.5px solid var(--divider);
    border-radius: var(--card-radius);
    overflow: hidden;
}

.showcase-card-header {
    padding: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
}

.showcase-card-header .tradition-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.showcase-card-body {
    padding: 0 var(--space-md) var(--space-md);
}

.showcase-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 6px 0;
    border-bottom: 0.5px solid var(--divider);
    font-size: var(--text-sm);
}

.showcase-item:last-child {
    border-bottom: none;
}

.showcase-item-label {
    color: var(--text-secondary);
}

.showcase-item-value {
    font-weight: 600;
    text-align: right;
}

/* ── CTA Section (Homepage) ─────────────── */
.cta-section {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
    margin: var(--space-xl) calc(var(--space-md) * -1);
    background: var(--bg-secondary);
    border-radius: var(--card-radius);
}

.cta-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.cta-desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.cta-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.cta-stat {
    font-weight: 600;
    color: var(--text-primary);
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 14px 32px;
    background: var(--accent);
    color: #FFFFFF;
    border: none;
    border-radius: 28px;
    font-size: var(--text-base);
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.cta-btn:hover {
    background: var(--accent-hover);
    color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 30%, transparent);
}

/* ── FAQ Accordion (Homepage) ───────────── */
.faq-section {
    margin: var(--space-xl) 0;
}

.faq-item {
    border-bottom: 0.5px solid var(--divider);
}

.faq-item:first-child {
    border-top: 0.5px solid var(--divider);
}

.faq-item summary {
    padding: var(--space-md) 0;
    font-weight: 600;
    font-size: var(--text-base);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: '+';
    font-size: var(--text-xl);
    font-weight: 300;
    color: var(--text-tertiary);
    transition: transform 0.2s;
    flex-shrink: 0;
    margin-left: var(--space-md);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 0 var(--space-md);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ── Language Banner ────────────────────── */
.lang-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-top: 0.5px solid var(--divider);
    box-shadow: 0 -2px 16px var(--shadow-md);
    padding: 12px var(--space-md);
    z-index: 150;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    font-size: var(--text-sm);
    transform: translateY(100%);
    transition: transform 0.3s ease-out;
}

.lang-banner.visible {
    transform: translateY(0);
}

.lang-banner-text {
    color: var(--text-secondary);
}

.lang-banner-btn {
    padding: 6px 16px;
    background: var(--accent);
    color: #FFFFFF;
    border: none;
    border-radius: 16px;
    font-size: var(--text-sm);
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    text-decoration: none;
}

.lang-banner-dismiss {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: var(--text-xs);
    font-family: var(--font);
    cursor: pointer;
    padding: 4px;
}

/* ── Filter Controls ────────────────────── */
.controls {
    padding: var(--space-md) 0;
    position: sticky;
    top: 49px;
    z-index: 50;
    background: var(--bg);
}

@supports (backdrop-filter: blur(20px)) {
    .controls {
        background: color-mix(in srgb, var(--bg) 88%, transparent);
        backdrop-filter: saturate(180%) blur(12px);
        -webkit-backdrop-filter: saturate(180%) blur(12px);
    }
}

.filter-row {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: var(--space-sm);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.filter-row::-webkit-scrollbar { display: none; }

.filter-pill {
    flex-shrink: 0;
    padding: 6px 14px;
    border: 1.5px solid var(--divider);
    border-radius: 20px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.filter-pill:hover {
    border-color: var(--text-secondary);
}

.filter-pill.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.filter-pill .pill-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 4px;
    vertical-align: middle;
}

.controls-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.controls-meta a {
    font-size: var(--text-xs);
}

.toggle-all-btn {
    background: none;
    border: none;
    color: var(--accent);
    font-size: var(--text-xs);
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    padding: 2px 0;
}

/* ── Tradition Group Header ─────────────── */
.tradition-group {
    margin-bottom: var(--space-sm);
}

.tradition-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 20px 0 var(--space-sm);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.tradition-header::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--divider);
}

.tradition-count {
    font-weight: 400;
    color: var(--text-tertiary);
}

/* ── Methodology Card ───────────────────── */
.method-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    box-shadow: 0 1px 8px var(--shadow);
    border: 0.5px solid var(--divider);
    margin-bottom: 12px;
    overflow: hidden;
    border-top: 3px solid var(--tradition-thai);
    transition: opacity 0.2s, transform 0.2s;
}

.method-card[data-tradition="thai"]     { border-top-color: var(--tradition-thai); }
.method-card[data-tradition="lanna"]    { border-top-color: var(--tradition-lanna); }
.method-card[data-tradition="chinese"]  { border-top-color: var(--tradition-chinese); }
.method-card[data-tradition="hijri"]    { border-top-color: var(--tradition-hijri); }
.method-card[data-tradition="hebrew"]   { border-top-color: var(--tradition-hebrew); }
.method-card[data-tradition="universal"]{ border-top-color: var(--tradition-universal); }

.method-card.hidden-card {
    display: none;
}

/* Card Header */
.method-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px var(--space-md) 10px;
}

.method-toggle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1.5px solid var(--divider);
    background: transparent;
    color: var(--text-tertiary);
    font-size: 0.7rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s;
}

.method-toggle.on {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.method-name-th {
    font-size: 0.95rem;
    font-weight: 600;
    flex: 1;
    min-width: 0;
}

.method-name-en {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Card Primary Value */
.method-primary {
    padding: 0 var(--space-md) 12px;
}

.method-primary-value {
    font-size: var(--text-xl);
    font-weight: 700;
    line-height: 1.3;
}

.method-primary-label {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

/* Quality Badge */
.quality-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: var(--text-xs);
    font-weight: 600;
    margin-left: var(--space-sm);
    vertical-align: middle;
}

.quality-good {
    background: color-mix(in srgb, var(--good) 15%, transparent);
    color: var(--good);
}

.quality-bad {
    background: color-mix(in srgb, var(--bad) 15%, transparent);
    color: var(--bad);
}

.quality-moderate {
    background: color-mix(in srgb, var(--moderate) 15%, transparent);
    color: var(--moderate);
}

.quality-neutral {
    background: color-mix(in srgb, var(--neutral) 15%, transparent);
    color: var(--neutral);
}

/* Score Bar */
.score-bar-wrap {
    padding: 0 var(--space-md) 12px;
}

.score-label {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-xs);
    display: flex;
    justify-content: space-between;
}

.score-bar {
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
}

.score-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s ease-out;
}

.score-bar-fill.score-good    { background: var(--good); }
.score-bar-fill.score-bad     { background: var(--bad); }
.score-bar-fill.score-moderate{ background: var(--moderate); }
.score-bar-fill.score-neutral { background: var(--accent); }

/* Details Section */
.method-details-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px var(--space-md);
    border-top: 0.5px solid var(--divider);
    background: none;
    border-left: none;
    border-right: none;
    border-bottom: none;
    width: 100%;
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    text-align: left;
}

.method-details-toggle .arrow {
    transition: transform 0.2s;
    font-size: 0.65rem;
}

.method-details-toggle.open .arrow {
    transform: rotate(90deg);
}

.method-details {
    padding: 0 var(--space-md) 14px;
    display: none;
}

.method-details.open {
    display: block;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 6px 0;
    border-bottom: 0.5px solid var(--divider);
    gap: 12px;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    flex-shrink: 0;
    max-width: 45%;
}

.detail-value {
    font-size: 0.8rem;
    font-weight: 500;
    text-align: right;
    word-break: break-word;
}

/* Array/list values as pills */
.detail-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: flex-end;
}

.detail-pill {
    display: inline-block;
    padding: 1px 8px;
    background: var(--bg-secondary);
    border-radius: 10px;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

/* Boolean values */
.bool-yes { color: var(--good); }
.bool-no  { color: var(--bad); }

/* ── Birth Day Selector (thai-mahataksa) ── */
.birth-day-selector {
    padding: var(--space-sm) var(--space-md) 14px;
    border-top: 0.5px solid var(--divider);
}

.birth-day-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.birth-day-grid {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.birth-day-btn {
    padding: 5px 10px;
    border: 1.5px solid var(--divider);
    border-radius: var(--radius-xs);
    background: transparent;
    color: var(--text-primary);
    font-size: var(--text-xs);
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.15s;
}

.birth-day-btn:hover {
    border-color: var(--accent);
}

.birth-day-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.birth-day-loading {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    padding: var(--space-xs) 0;
}

/* ── Footer ─────────────────────────────── */
.site-footer {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.site-footer a {
    color: var(--text-secondary);
}

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

.footer-brand {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-size: var(--text-sm);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

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

.powered-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px 12px;
    background: var(--bg-secondary);
    border-radius: 20px;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

/* ── Error State ────────────────────────── */
.error-box {
    text-align: center;
    padding: 40px 20px;
    background: color-mix(in srgb, var(--bad) 8%, transparent);
    border-radius: var(--card-radius);
    margin: 20px 0;
}

.error-box h2 {
    color: var(--bad);
    margin-bottom: var(--space-sm);
}

/* ── Animations ─────────────────────────── */
.fade-in {
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Staggered card animation */
.method-card { animation: cardIn 0.35s ease-out backwards; }
.method-card:nth-child(1)  { animation-delay: 0.05s; }
.method-card:nth-child(2)  { animation-delay: 0.08s; }
.method-card:nth-child(3)  { animation-delay: 0.11s; }
.method-card:nth-child(4)  { animation-delay: 0.14s; }
.method-card:nth-child(5)  { animation-delay: 0.17s; }
.method-card:nth-child(6)  { animation-delay: 0.20s; }

@keyframes cardIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ─────────────────────────── */
@media (min-width: 768px) {
    .container { padding: 0 var(--space-xl); }
    .hero-date { font-size: 1.75rem; }
    .hero-moon { max-width: 420px; }
    .method-card-header { padding: var(--space-md) 20px 12px; }
    .method-primary { padding: 0 20px 14px; }
    .score-bar-wrap { padding: 0 20px 14px; }
    .method-details-toggle { padding: 12px 20px; }
    .method-details { padding: 0 20px var(--space-md); }
    .birth-day-selector { padding: 10px 20px var(--space-md); }

    /* Homepage grid improvements */
    .glance-grid { grid-template-columns: repeat(3, 1fr); }
    .deep-dive-grid { grid-template-columns: repeat(3, 1fr); }
    .tradition-showcase { grid-template-columns: repeat(2, 1fr); }
    .cta-section { margin: var(--space-xl) 0; }
}