/* Tessellation - M.C. Escher-style patterns
   Showcases: CSS patterns, clip-path, repeating gradients, animations */

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

:root {
    --bg-warm: #f5e6d3;
    --bg-cool: #e8e0d5;
    --tile-dark: #2c1810;
    --tile-light: #d4a574;
    --tile-mid: #8b5a2b;
    --accent-1: #c17f59;
    --accent-2: #5c4033;
    --text-dark: #2c1810;
    --text-light: #f5e6d3;
}

html, body {
    height: 100%;
}

body {
    font-family: 'Garamond', 'Times New Roman', serif;
    background: var(--bg-warm);
    color: var(--text-dark);
    line-height: 1.8;
    overflow-x: hidden;
}

.scene {
    position: relative;
    min-height: 100vh;
}

/* Background tessellation pattern */
.tessellation-bg {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    opacity: 0.15;
}

.pattern-layer {
    position: absolute;
    inset: -50%;
    width: 200%;
    height: 200%;
}

/* Hexagonal pattern using conic gradients */
.layer-1 {
    background:
        repeating-conic-gradient(
            from 0deg at 50% 50%,
            var(--tile-dark) 0deg 60deg,
            transparent 60deg 120deg
        );
    background-size: 60px 52px;
    animation: drift 60s linear infinite;
}

.layer-2 {
    background:
        repeating-linear-gradient(
            60deg,
            transparent 0px,
            transparent 28px,
            var(--tile-mid) 28px,
            var(--tile-mid) 30px
        ),
        repeating-linear-gradient(
            -60deg,
            transparent 0px,
            transparent 28px,
            var(--tile-mid) 28px,
            var(--tile-mid) 30px
        );
    background-size: 58px 100px;
    animation: drift 80s linear infinite reverse;
}

.layer-3 {
    background:
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            transparent 48px,
            var(--accent-2) 48px,
            var(--accent-2) 50px
        );
    background-size: 50px 50px;
    animation: drift 100s linear infinite;
}

@keyframes drift {
    from { transform: translate(0, 0); }
    to { transform: translate(100px, 100px); }
}

/* Showcase container */
.showcase {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    padding: 3rem 1rem;
}

/* Tile grid - interlocking pattern */
.tile-grid {
    display: grid;
    grid-template-columns: repeat(4, 80px);
    grid-template-rows: repeat(4, 60px);
    gap: 0;
    transform: rotate(-5deg);
    filter: drop-shadow(4px 4px 8px rgba(0,0,0,0.3));
}

/* Base tile styles */
.tile {
    width: 80px;
    height: 60px;
    position: relative;
    transition: transform 0.3s ease;
}

.tile:hover {
    transform: scale(1.05);
    z-index: 10;
}

/* Bird tiles - using clip-path for bird silhouette */
.bird {
    background: var(--tile-dark);
    clip-path: polygon(
        0% 20%,
        15% 0%,
        30% 10%,
        50% 5%,
        70% 15%,
        85% 10%,
        100% 25%,
        95% 50%,
        100% 75%,
        80% 90%,
        60% 85%,
        40% 95%,
        20% 85%,
        0% 80%,
        5% 50%
    );
    animation: bird-bob 4s ease-in-out infinite;
}

.bird-1, .bird-3, .bird-5, .bird-7 {
    animation-delay: 0s;
}

.bird-2, .bird-4, .bird-6, .bird-8 {
    animation-delay: -2s;
}

@keyframes bird-bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* Fish tiles - complementary shape */
.fish {
    background: var(--tile-light);
    clip-path: polygon(
        5% 50%,
        0% 20%,
        20% 15%,
        40% 5%,
        60% 15%,
        80% 10%,
        100% 20%,
        95% 50%,
        100% 80%,
        85% 90%,
        70% 85%,
        50% 95%,
        30% 90%,
        15% 100%,
        0% 80%
    );
    animation: fish-swim 3s ease-in-out infinite;
}

.fish-1, .fish-3, .fish-5, .fish-7 {
    animation-delay: -1.5s;
}

.fish-2, .fish-4, .fish-6, .fish-8 {
    animation-delay: 0s;
}

@keyframes fish-swim {
    0%, 100% { transform: translateX(0) scaleX(1); }
    25% { transform: translateX(2px) scaleX(0.98); }
    75% { transform: translateX(-2px) scaleX(1.02); }
}

/* Content */
.content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background: linear-gradient(180deg,
        rgba(245, 230, 211, 0.95) 0%,
        rgba(245, 230, 211, 0.98) 100%
    );
    border-top: 4px solid var(--tile-mid);
}

.header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--tile-mid);
}

h1 {
    font-size: clamp(2rem, 7vw, 3.5rem);
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--tile-dark);
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: clamp(1rem, 3vw, 1.2rem);
    font-style: italic;
    color: var(--tile-mid);
}

.text {
    margin-bottom: 2rem;
}

.lead {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    text-align: center;
    margin-bottom: 2rem;
    padding: 1rem;
    border-left: 3px solid var(--accent-1);
    border-right: 3px solid var(--accent-1);
    background: rgba(193, 127, 89, 0.1);
}

.columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.column h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-2);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.column p {
    font-size: 1rem;
    text-align: justify;
}

.closing {
    text-align: center;
    font-style: italic;
    font-size: 1.1rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--tile-mid);
}

.footer {
    text-align: center;
    font-size: 0.9rem;
    color: var(--tile-mid);
    font-style: italic;
}

/* Responsive */
@media (max-width: 600px) {
    .tile-grid {
        grid-template-columns: repeat(4, 60px);
        grid-template-rows: repeat(4, 45px);
    }

    .tile {
        width: 60px;
        height: 45px;
    }

    .showcase {
        padding: 2rem 0.5rem;
    }

    .content {
        padding: 1.5rem 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .layer-1, .layer-2, .layer-3 {
        animation: none;
    }

    .bird {
        animation: none;
    }

    .fish {
        animation: none;
    }
}

/* Dark mode adaptation */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-warm: #1a1410;
        --bg-cool: #221a14;
        --tile-dark: #f5e6d3;
        --tile-light: #2c1810;
        --text-dark: #f5e6d3;
        --text-light: #2c1810;
    }

    .content {
        background: linear-gradient(180deg,
            rgba(26, 20, 16, 0.95) 0%,
            rgba(26, 20, 16, 0.98) 100%
        );
    }
}