:root {
    --deep-blue: #1f497d;
    --water-mid: #5baed4;
    --water-light: #b3e5fc;
    --sky-soft: #e3f2fd;
    --glass-white: rgba(255, 255, 255, 0.7);
    --header-blue: #d2deef;
}

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    color: var(--deep-blue);
    background-color: var(--sky-soft);
    line-height: 1.6;
}

.water-background {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: linear-gradient(180deg, #e1f5fe 0%, #b3e5fc 100%);
    z-index: -1;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

.hero {
    background: linear-gradient(135deg, var(--deep-blue), var(--water-mid));
    color: white;
    text-align: center;
    padding: 80px 20px;
    border-bottom-left-radius: 50% 25px;
    border-bottom-right-radius: 50% 25px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

h1 { font-family: 'Quicksand', sans-serif; font-size: 2.5rem; margin: 0; }
h2 { border-bottom: 3px solid var(--water-light); display: inline-block; margin-bottom: 20px; margin-top: 40px; }
h3 { color: var(--deep-blue); margin-bottom: 15px; }

.glass-card {
    background: var(--glass-white);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border: 1px solid white;
    margin-top: -30px;
}

.table-container {
    overflow-x: auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.dimensions-table {
    width: 100%;
    border-collapse: collapse;
}

.dimensions-table th {
    background: var(--header-blue);
    color: var(--deep-blue);
    padding: 15px;
    text-align: left;
}

.dimensions-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #eee;
}

.dimensions-table tr:nth-child(even) { background: #f2f5fa; }

.category-wrapper { margin-top: 50px; }

.taxonomy-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    transition: transform 0.2s;
}

.taxonomy-item:hover { transform: scale(1.005); }

summary {
    padding: 18px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
}

summary::after { content: '▼'; color: var(--water-mid); font-size: 0.8rem; }
details[open] summary::after { content: '▲'; }

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1px;
    background: var(--water-light);
    border-top: 1px solid #eee;
}

.info-cell {
    background: white;
    padding: 15px;
    font-size: 0.9rem;
}

.info-cell strong {
    display: block;
    color: var(--water-mid);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.reference-box {
    border-left: 5px solid var(--water-mid);
    padding: 15px;
    background: rgba(255,255,255,0.5);
    margin-top: 20px;
    font-size: 0.95rem;
}

footer { text-align: center; padding: 80px 20px 40px; opacity: 0.7; font-size: 0.85rem; }

.fade-in {
    animation: fadeIn 1s ease-in forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}