/* ==========================================
   a6c.xyz - Seapunk Descent Narrative
   ========================================== */

/* CSS Custom Properties */
:root {
    --deep-bg: #0A1F1C;
    --mid-bg: #0D3B2E;
    --primary-accent: #00E5CC;
    --secondary-accent: #4ECDC4;
    --tertiary-accent: #2ECC71;
    --light-surface: #B8FFF5;
    --warm-punctuation: #FF6B6B;
    --text-body: #D4F5F0;

    --font-display: 'Poiret One', cursive;
    --font-secondary: 'Josefin Sans', sans-serif;
    --font-body: 'Nunito Sans', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background: var(--deep-bg);
    color: var(--text-body);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.72;
    overflow-x: hidden;
    cursor: default;
}

/* ==========================================
   Generative Canvas Background
   ========================================== */
#generative-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    mix-blend-mode: screen;
}

/* ==========================================
   Moire Grid Overlay
   ========================================== */
#moire-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
    opacity: 0.05;
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 20px,
            var(--primary-accent) 20px,
            var(--primary-accent) 21px
        ),
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 22px,
            var(--primary-accent) 22px,
            var(--primary-accent) 23px
        );
}

/* ==========================================
   Depth Pressure Indicators
   ========================================== */
#depth-indicators {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    transition: opacity 0.8s ease;
}

#depth-indicators.visible {
    opacity: 1;
}

.depth-reading {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--secondary-accent);
    opacity: 0.75;
    white-space: nowrap;
    text-align: right;
}

/* ==========================================
   Trilobite Navigation
   ========================================== */
#trilobite-nav {
    position: fixed;
    top: 24px;
    left: 24px;
    z-index: 200;
    cursor: pointer;
}

#trilobite-glyph {
    width: 40px;
    height: 50px;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
    filter: drop-shadow(0 0 8px rgba(0, 229, 204, 0.3));
}

#trilobite-nav:hover #trilobite-glyph {
    transform: scale(1.15);
    filter: drop-shadow(0 0 16px rgba(0, 229, 204, 0.6));
}

#radial-menu {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 220px;
    height: 220px;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#radial-menu.hidden {
    opacity: 0;
    transform: scale(0.3) rotate(-90deg);
    pointer-events: none;
}

#radial-menu.visible {
    opacity: 1;
    transform: scale(1) rotate(0deg);
    pointer-events: all;
}

.menu-segment {
    position: absolute;
    font-family: var(--font-secondary);
    font-size: 14px;
    font-weight: 600;
    color: var(--light-surface);
    letter-spacing: 0.08em;
    padding: 6px 14px;
    background: rgba(13, 59, 46, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(0, 229, 204, 0.3);
    border-radius: 20px;
    cursor: pointer;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    white-space: nowrap;
}

.menu-segment:nth-child(1) { top: 0; left: 80px; }
.menu-segment:nth-child(2) { top: 60px; left: 140px; }
.menu-segment:nth-child(3) { top: 120px; left: 100px; }
.menu-segment:nth-child(4) { top: 170px; left: 30px; }

.menu-segment:hover {
    background: rgba(0, 229, 204, 0.2);
    color: var(--primary-accent);
    border-color: var(--primary-accent);
}

/* ==========================================
   Cursor Trail
   ========================================== */
#cursor-trail {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 150;
    overflow: hidden;
}

.leaf-trail {
    position: absolute;
    width: 10px;
    height: 14px;
    opacity: 0.6;
    pointer-events: none;
    animation: leafDrift 2s ease-out forwards;
}

.leaf-trail::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: var(--primary-accent);
    clip-path: ellipse(50% 40% at 50% 50%);
    opacity: 0.5;
}

@keyframes leafDrift {
    0% {
        transform: translateY(0) rotate(0deg) scale(1);
        opacity: 0.6;
    }
    100% {
        transform: translateY(80px) rotate(120deg) scale(0.3);
        opacity: 0;
    }
}

/* ==========================================
   Zone Base Styles
   ========================================== */
.zone {
    position: relative;
    z-index: 10;
    min-height: 100vh;
}

.zone-content {
    position: relative;
    z-index: 10;
    padding: 0 40px;
}

/* ==========================================
   SURFACE ZONE
   ========================================== */
.surface-zone {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--mid-bg) 0%, var(--deep-bg) 100%);
}

.surface-zone .zone-content {
    text-align: center;
    padding: 0;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 15vw;
    font-weight: 400;
    color: var(--primary-accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-shadow: 0 0 20px rgba(0, 229, 204, 0.4), 0 0 60px rgba(0, 229, 204, 0.15);
    position: relative;
    line-height: 1;
    animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% {
        text-shadow: 0 0 20px rgba(0, 229, 204, 0.4), 0 0 60px rgba(0, 229, 204, 0.15);
    }
    50% {
        text-shadow: 0 0 30px rgba(0, 229, 204, 0.6), 0 0 80px rgba(0, 229, 204, 0.25), 0 0 120px rgba(0, 229, 204, 0.1);
    }
}

/* Water refraction overlay */
.hero-title::after {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(0, 229, 204, 0.08) 25%,
        transparent 50%,
        rgba(184, 255, 245, 0.06) 75%,
        transparent 100%
    );
    animation: refractionSlide 6s linear infinite;
    pointer-events: none;
}

@keyframes refractionSlide {
    0% { transform: translateX(-30%); }
    100% { transform: translateX(30%); }
}

.tagline-container {
    margin-top: 30px;
    height: 40px;
    overflow: hidden;
}

.tagline {
    font-family: var(--font-secondary);
    font-size: 24px;
    font-weight: 600;
    color: var(--light-surface);
    letter-spacing: 0.15em;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-indicator {
    margin-top: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: gentleBob 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 30px;
    height: 45px;
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--secondary-accent);
    opacity: 0.75;
    letter-spacing: 0.2em;
}

@keyframes gentleBob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* Trilobite Watermark */
.trilobite-watermark {
    position: absolute;
    width: 60vw;
    height: 60vw;
    max-width: 600px;
    max-height: 600px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
}

/* ==========================================
   DIVE TRANSITIONS
   ========================================== */
.dive-transition {
    position: relative;
    z-index: 10;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--deep-bg);
}

.dive-text {
    font-family: var(--font-secondary);
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-accent);
    letter-spacing: 0.2em;
    opacity: 0;
    transition: opacity 1s ease;
    z-index: 2;
}

.dive-transition.active .dive-text {
    opacity: 0.7;
}

.bubble-field {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    overflow: hidden;
}

/* ==========================================
   TWILIGHT ZONE
   ========================================== */
.twilight-zone {
    min-height: 250vh;
    padding: 80px 0 120px;
    background: linear-gradient(180deg, var(--deep-bg) 0%, #071614 50%, var(--deep-bg) 100%);
}

.twilight-zone .zone-content {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 400;
    color: var(--primary-accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-shadow: 0 0 20px rgba(0, 229, 204, 0.4);
    text-align: center;
    margin-bottom: 20px;
}

/* Kelp Divider */
.kelp-divider {
    width: 100%;
    height: 60px;
    margin-bottom: 60px;
}

.kelp-path {
    transition: stroke-dashoffset 2s ease;
}

/* ==========================================
   MASONRY GRID
   ========================================== */
.masonry-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 16px;
    padding: 0 20px;
}

.masonry-card {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1), clip-path 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.masonry-card.visible {
    opacity: 1;
    transform: scale(1);
}

.masonry-card:hover {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 calc(100% - 8px));
}

.card-inner {
    background: rgba(13, 59, 46, 0.6);
    backdrop-filter: blur(12px) saturate(1.4);
    border: 1px solid rgba(0, 229, 204, 0.2);
    padding: 28px 24px;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.card-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid transparent;
    border-radius: 8px;
    background: linear-gradient(var(--mid-bg), var(--mid-bg)) padding-box,
                linear-gradient(var(--border-angle, 0deg), var(--primary-accent), var(--secondary-accent), var(--tertiary-accent)) border-box;
    animation: borderRotate 30s linear infinite;
    pointer-events: none;
    opacity: 0.5;
}

@keyframes borderRotate {
    0% { --border-angle: 0deg; }
    100% { --border-angle: 360deg; }
}

@property --border-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

/* Card shadows - simulating sunlight through water */
.masonry-card {
    box-shadow: 0 20px 40px rgba(0, 229, 204, 0.05), 0 8px 16px rgba(10, 31, 28, 0.4);
}

.card-title {
    font-family: var(--font-secondary);
    font-size: 20px;
    font-weight: 600;
    color: var(--light-surface);
    letter-spacing: -0.01em;
    margin-bottom: 14px;
}

.card-body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.72;
    color: var(--text-body);
    margin-bottom: 18px;
}

.card-meta {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--secondary-accent);
    opacity: 0.75;
    display: block;
}

/* Card height variants */
.card-tall { grid-row: span 2; }
.card-medium { grid-row: span 1; }
.card-short { grid-row: span 1; }
.card-large { grid-row: span 2; }

/* ==========================================
   MIDNIGHT ZONE
   ========================================== */
.midnight-zone {
    min-height: 250vh;
    padding: 120px 0;
    background: linear-gradient(180deg, var(--deep-bg) 0%, #050F0D 50%, var(--deep-bg) 100%);
}

.midnight-zone .zone-content {
    max-width: 1200px;
    margin: 0 auto;
}

.midnight-title {
    font-size: clamp(64px, 20vw, 280px);
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 1.2s ease, transform 1.2s ease;
}

.midnight-title.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Coral Organism */
.coral-organism {
    width: 200px;
    height: 200px;
    margin: 60px auto;
    position: relative;
}

.coral-svg {
    width: 100%;
    height: 100%;
}

.coral-pulse-center {
    animation: coralPulse 3s ease-in-out infinite;
}

.coral-ring {
    animation: ringExpand 3s ease-in-out infinite;
}

.coral-ring.r1 { animation-delay: 0s; }
.coral-ring.r2 { animation-delay: 0.5s; }
.coral-ring.r3 { animation-delay: 1s; }

@keyframes coralPulse {
    0%, 100% { r: 4; opacity: 1; }
    50% { r: 6; opacity: 0.7; }
}

@keyframes ringExpand {
    0%, 100% { opacity: 0.5; transform-origin: center; }
    50% { opacity: 0.2; }
}

/* Sparse masonry for midnight */
.masonry-sparse {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 60px auto 0;
}

.masonry-sparse .card-large {
    grid-row: span 1;
}

/* ==========================================
   ABYSS ZONE
   ========================================== */
.abyss-zone {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--deep-bg);
    position: relative;
}

.abyss-zone .zone-content {
    text-align: center;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0;
}

#abyss-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.abyss-text {
    font-family: var(--font-display);
    font-size: clamp(24px, 4vw, 48px);
    font-weight: 400;
    color: var(--primary-accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-shadow: 0 0 20px rgba(0, 229, 204, 0.4);
    max-width: 800px;
    line-height: 1.5;
    opacity: 0;
    transition: opacity 2s ease;
    z-index: 2;
    position: relative;
    padding: 0 40px;
}

.abyss-text.visible {
    opacity: 1;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
    .masonry-grid {
        grid-template-columns: 1.3fr 1fr 1fr;
    }

    .masonry-sparse {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .masonry-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .hero-title {
        font-size: 20vw;
    }

    .section-title {
        font-size: clamp(36px, 10vw, 64px);
    }

    .midnight-title {
        font-size: clamp(48px, 15vw, 160px);
    }

    .card-inner {
        padding: 20px 16px;
    }

    .card-title {
        font-size: 17px;
    }

    .card-body {
        font-size: 15px;
    }

    #depth-indicators {
        right: 10px;
    }

    .depth-reading {
        font-size: 11px;
    }

    .masonry-sparse {
        grid-template-columns: 1fr;
    }

    .card-tall,
    .card-large {
        grid-row: span 1;
    }
}

@media (max-width: 480px) {
    .masonry-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .zone-content {
        padding: 0 16px;
    }

    .tagline {
        font-size: 16px;
    }

    #trilobite-nav {
        top: 12px;
        left: 12px;
    }

    .menu-segment {
        font-size: 12px;
        padding: 4px 10px;
    }
}

/* ==========================================
   SELECTION STYLES
   ========================================== */
::selection {
    background: rgba(0, 229, 204, 0.3);
    color: var(--light-surface);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--deep-bg);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 229, 204, 0.3);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 229, 204, 0.5);
}