:root {
    --water-light: #3a7ca8;
    --water-dark: #0f3d5c;
    --salmon: #e07856;
    --salmon-light: #e58a68;
    --salmon-deep: #d9603c;
    --rust: #c9603f;
    --rust-dark: #b74d2e;
    --rust-deepest: #a83f22;
    --kelp: #1f5c47;
    --tan: #e8dcc8;
    --tan-dark: #a08a63;
    --ink: #1a1a1a;
    --foam: rgba(255, 255, 255, 0.92);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background: linear-gradient(180deg, var(--water-light) 0%, var(--water-dark) 100%);
    background-attachment: fixed;
}

a {
    color: inherit;
}

.wrap {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

header.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    max-width: 1000px;
    margin: 0 auto;
}

header.site-header .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--foam);
}

header.site-header .brand img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--water-dark);
    padding: 4px;
}

header.site-header .brand span {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

header.site-header nav a {
    color: var(--foam);
    text-decoration: none;
    font-weight: 600;
    margin-left: 20px;
    opacity: 0.85;
}

header.site-header nav a:hover {
    opacity: 1;
    text-decoration: underline;
}

.hero {
    text-align: center;
    color: var(--foam);
    padding: 20px 0 32px;
}

.hero img.hero-art {
    width: 100%;
    max-width: 460px;
    border-radius: 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 2.1rem;
    margin: 0 0 10px;
}

.hero p {
    font-size: 1.05rem;
    max-width: 640px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.85);
}

.hero-row {
    display: flex;
    align-items: flex-start;
    gap: 28px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

.hero-row .hero {
    flex: 1 1 auto;
    min-width: 0;
}

.river-picker {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    margin: 0 0 10px;
}

.river-picker-row {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}

.river-picker label {
    color: var(--foam);
    font-weight: 600;
    font-size: 0.9rem;
}

.river-picker select {
    font-size: 0.9rem;
    padding: 5px 8px;
    border-radius: 6px;
    border: 1px solid var(--tan-dark);
    background: var(--foam);
    color: var(--ink);
}

.river-picker-count {
    color: var(--foam);
    font-size: 0.78rem;
    opacity: 0.8;
}

.species-picker {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 10px 0;
}

.species-picker label {
    color: var(--foam);
    font-weight: 600;
    font-size: 0.9rem;
}

.species-picker select {
    font-size: 0.9rem;
    padding: 5px 8px;
    border-radius: 6px;
    border: 1px solid var(--tan-dark);
    background: var(--foam);
    color: var(--ink);
}

@media (max-width: 700px) {
    .hero-row {
        flex-direction: column;
    }
}

.card {
    background: var(--foam);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 8px 24px rgba(15, 61, 92, 0.25);
}

.location-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 28px;
}

.location-card {
    display: block;
    text-decoration: none;
    color: var(--ink);
    background: var(--foam);
    border-radius: 14px;
    padding: 22px;
    border: 2px solid transparent;
    box-shadow: 0 8px 24px rgba(15, 61, 92, 0.25);
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.location-card:hover {
    transform: translateY(-3px);
    border-color: var(--salmon-deep);
}

.location-card .tag {
    display: inline-block;
    background: var(--kelp);
    color: var(--foam);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
}

.location-card h3 {
    margin: 0 0 6px;
    color: var(--rust-deepest);
}

.location-card p {
    margin: 0;
    color: #4a4a4a;
    font-size: 0.92rem;
}

.location-card .arrow {
    display: inline-block;
    margin-top: 14px;
    color: var(--salmon-deep);
    font-weight: 700;
}

.location-card.disabled {
    opacity: 0.55;
    cursor: default;
}

.location-card.disabled:hover {
    transform: none;
    border-color: transparent;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.stat-tile {
    background: var(--foam);
    border-radius: 12px;
    padding: 18px;
    box-shadow: 0 6px 18px rgba(15, 61, 92, 0.2);
    border-top: 4px solid var(--salmon-deep);
}

.stat-tile .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--tan-dark);
    font-weight: 700;
}

.stat-tile .value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--rust-deepest);
    margin-top: 4px;
}

.stat-tile .sub {
    font-size: 0.8rem;
    color: #6a6a6a;
    margin-top: 2px;
}

.panel {
    background: var(--foam);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 8px 24px rgba(15, 61, 92, 0.25);
    margin-bottom: 24px;
}

.panel h2 {
    margin-top: 0;
    color: var(--water-dark);
    border-bottom: 3px solid var(--tan);
    padding-bottom: 10px;
}

.panel > summary.panel-title {
    margin-top: 0;
    margin-bottom: 16px;
    color: var(--water-dark);
    border-bottom: 3px solid var(--tan);
    padding-bottom: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
}

.panel > summary.panel-title::-webkit-details-marker {
    display: none;
}

.panel > summary.panel-title .chevron {
    display: inline-block;
    font-size: 1rem;
    color: var(--salmon-deep);
    transition: transform 0.15s ease;
    transform: rotate(90deg);
}

.panel:not([open]) > summary.panel-title {
    margin-bottom: 0;
}

.panel:not([open]) > summary.panel-title .chevron {
    transform: rotate(0deg);
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

table.data-table th {
    background: var(--water-dark);
    color: var(--foam);
    text-align: left;
    padding: 10px 12px;
    position: sticky;
    top: 0;
}

table.data-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--tan);
}

table.data-table tr:nth-child(even) td {
    background: #faf6ee;
}

table.data-table tr:hover td {
    background: #f3e3d6;
}

.highlight-top {
    background: var(--salmon-light) !important;
    color: var(--water-dark);
    font-weight: 700;
}

.range-note {
    display: block;
    font-size: 0.78rem;
    color: var(--tan-dark);
    font-weight: 400;
}

.scroll-table {
    max-height: 480px;
    overflow-y: auto;
    border-radius: 10px;
    border: 1px solid var(--tan);
}

.badge-note {
    background: var(--tan);
    border-left: 4px solid var(--tan-dark);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.88rem;
    color: #5a4a30;
}

.back-link {
    display: inline-block;
    margin-bottom: 18px;
    color: var(--foam);
    text-decoration: none;
    font-weight: 600;
}

.back-link:hover {
    text-decoration: underline;
}

footer.site-footer {
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    padding: 30px 24px;
}