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

:root {
    /* Base */
    --bg: #f8f9fb;
    --card: #ffffff;

    /* Primary */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;

    /* Accent - amber for impact numbers */
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --accent-light: #fef3c7;

    /* Semantic */
    --green: #059669;
    --green-light: #d1fae5;
    --red: #dc2626;
    --red-light: #fee2e2;

    /* Text */
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    /* Borders & Surfaces */
    --border: #e2e8f0;
    --surface: #f1f5f9;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);

    /* Layout */
    --radius: 12px;
    --radius-lg: 16px;
    --container: 960px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.hidden { display: none !important; }

/* ========== HEADER ========== */
header {
    background: #0f172a;
    color: #fff;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow 0.2s;
}

header.scrolled {
    box-shadow: var(--shadow-lg);
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #fff;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo h1 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo h1 span {
    font-weight: 400;
    opacity: 0.6;
}

.nav-links {
    display: flex;
    gap: 2px;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.15s;
}

.nav-links a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.nav-links a.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
    font-weight: 600;
}

/* ========== HERO ========== */
.hero {
    text-align: center;
    padding: 48px 0 32px;
}

.hero-title {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    color: var(--text);
    margin-bottom: 12px;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========== CARDS ========== */
.card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.card h2 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text);
}

.card h2 small {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ========== IMPACT BANNER ========== */
.impact-banner {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    margin-bottom: 16px;
}

.impact-banner .impact-label {
    font-size: 0.85rem;
    font-weight: 500;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.impact-banner .impact-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 8px;
}

.impact-banner .impact-detail {
    font-size: 0.95rem;
    opacity: 0.8;
}

.impact-banner.up .impact-value { color: #f87171; }
.impact-banner.down .impact-value { color: #34d399; }

/* ========== STAT CARDS ========== */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.stat-card {
    background: var(--surface);
    border-radius: 10px;
    padding: 18px;
    text-align: center;
}

.stat-card .stat-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}

.stat-card .stat-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.stat-card .stat-value.up { color: var(--red); }
.stat-card .stat-value.down { color: var(--green); }

/* ========== FORMS ========== */
main {
    flex: 1;
    padding: 0 0 48px;
}

.field-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.field label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.field input,
.field select {
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
    background: #fff;
}

.field input:focus,
.field select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.field-group + .field-group {
    margin-top: 16px;
}

.input-with-unit {
    position: relative;
}

.input-with-unit input {
    padding-right: 42px;
}

.input-with-unit .unit {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--text-muted);
    pointer-events: none;
    font-weight: 500;
}

/* ========== RESULTS ========== */
.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.result-card {
    background: var(--surface);
    border-radius: 10px;
    padding: 16px;
    text-align: center;
}

.result-card h3 {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.result-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.result-value.up { color: var(--red); }
.result-value.down { color: var(--green); }

/* ========== TRIP RESULTS ========== */
.trip-results h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.trip-diff-banner {
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    background: var(--surface);
}

.trip-diff-banner.up {
    background: var(--red-light);
    color: var(--red);
}

.trip-diff-banner.down {
    background: var(--green-light);
    color: var(--green);
}

/* ========== TABLE ========== */
.results-table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

th, td {
    padding: 10px 12px;
    text-align: right;
    border-bottom: 1px solid var(--border);
}

th {
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

td.row-label {
    text-align: left;
    font-weight: 500;
    color: var(--text-secondary);
}

tr:last-child td {
    border-bottom: none;
}

/* ========== MARKET DATA ========== */
.market-card h2 small {
    display: inline-block;
    background: var(--green);
    color: #fff;
    font-size: 0.6rem;
    padding: 2px 8px;
    border-radius: 10px;
    vertical-align: middle;
    margin-left: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.market-loading,
.market-error {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.market-error { color: var(--red); }

.market-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.market-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 14px 12px;
    background: var(--surface);
    border-radius: 10px;
    text-align: center;
}

.market-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.market-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
}

.market-change {
    font-size: 0.8rem;
    font-weight: 600;
}

.market-change.up { color: var(--red); }
.market-change.down { color: var(--green); }

.chart-container {
    position: relative;
    width: 100%;
    margin-bottom: 12px;
}

.chart-controls {
    display: flex;
    gap: 6px;
    justify-content: center;
}

.chart-btn {
    padding: 6px 14px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    background: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s;
}

.chart-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.chart-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.chart-tooltip {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 6px 0;
}

.chart-comparison {
    text-align: center;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-top: 12px;
}

.chart-comparison.up {
    background: var(--red-light);
    color: var(--red);
}

.chart-comparison.down {
    background: var(--green-light);
    color: var(--green);
}

.compare-clear {
    display: block;
    font-size: 0.7rem;
    opacity: 0.6;
    margin-top: 4px;
}

/* ========== BADGE ========== */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-green { background: var(--green-light); color: var(--green); }
.badge-red { background: var(--red-light); color: var(--red); }
.badge-blue { background: var(--primary-light); color: var(--primary); }

/* ========== MARKET TEASER ========== */
.market-teaser {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #fff;
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 16px;
    text-decoration: none;
    transition: transform 0.15s, box-shadow 0.15s;
}

.market-teaser:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.market-teaser-left {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.market-teaser-label {
    font-size: 0.75rem;
    opacity: 0.6;
    font-weight: 500;
}

.market-teaser-value {
    font-size: 1.4rem;
    font-weight: 700;
}

.market-teaser-cta {
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0.8;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ========== CROSS LINKS ========== */
.cross-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 16px;
    margin-bottom: 16px;
}

.cross-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.cross-link:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.cross-link-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.cross-link-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.cross-link-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
}

.cross-link-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

@media (max-width: 520px) {
    .cross-links {
        grid-template-columns: 1fr;
    }
}

/* ========== SPHERIFY PROMO ========== */
.spherify-promo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(44.44deg, #040c19 0%, #0c7b93 54%, #36d0ea 100%);
    color: #fff;
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 0;
    margin-top: 32px;
    text-decoration: none;
    transition: transform 0.15s, box-shadow 0.15s;
    gap: 16px;
}

.spherify-promo:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.spherify-promo-logo {
    height: 28px;
    width: auto;
    flex-shrink: 0;
}

.spherify-promo-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.spherify-promo-title {
    font-size: 0.95rem;
    font-weight: 700;
}

.spherify-promo-desc {
    font-size: 0.8rem;
    opacity: 0.6;
}

.spherify-promo-cta {
    flex-shrink: 0;
    padding: 8px 18px;
    background: var(--primary);
    color: #fff;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

@media (max-width: 520px) {
    .spherify-promo {
        flex-direction: column;
        text-align: center;
    }
}

/* ========== FOOTER ========== */
footer {
    text-align: center;
    padding: 32px 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
}

.footer-links {
    margin-top: 8px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s;
}

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

.designed-by {
    margin-top: 6px;
    font-weight: 500;
}

.designed-by a {
    color: var(--text-muted);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s, color 0.15s;
}

.designed-by a:hover {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ========== SEO CONTENT ========== */
.seo-content h2 {
    margin-bottom: 12px;
}

.seo-content h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-top: 16px;
    margin-bottom: 6px;
}

.seo-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .stat-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .market-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero-title {
        font-size: 1.7rem;
    }
}

@media (max-width: 520px) {
    .field-group {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stat-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
    }

    .stat-card .stat-label {
        margin-bottom: 0;
    }

    .stat-card .stat-value {
        font-size: 1.4rem;
    }

    .logo h1 {
        font-size: 1rem;
    }

    .logo-icon {
        font-size: 1.2rem;
    }

    .nav-links a {
        padding: 6px 10px;
        font-size: 0.8rem;
    }

    .card {
        padding: 18px;
    }

    .hero {
        padding: 32px 0 20px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .impact-banner .impact-value {
        font-size: 2.2rem;
    }

    .market-teaser {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}