/* ========================================
   okurairi.net - Neomorphic Crystalline
   ======================================== */

:root {
    --cream: #F5EDE3;
    --cream-light: #FFF8F0;
    --cream-shadow: #D4C4B8;
    --burgundy: #6B1D3A;
    --wine: #8C3A5E;
    --charcoal: #2E1A24;
    --plum: #7A5C6A;
    --rose-gold: #C49A82;
    --umber: #5E3028;
    --diagonal-angle: 4deg;
    --neo-blur: 8px;
    --neo-distance: 4px;
}

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

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

body {
    background: var(--cream);
    color: var(--charcoal);
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 400;
    font-size: clamp(0.95rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    overflow-x: hidden;
}

/* ========================================
   Progress Indicator
   ======================================== */

.progress-track {
    position: fixed;
    left: 24px;
    top: 10%;
    bottom: 10%;
    width: 2px;
    background: var(--cream-shadow);
    z-index: 100;
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: var(--burgundy);
    transition: height 0.3s ease;
}

.progress-diamond {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 8px;
    height: 8px;
    background: var(--cream-shadow);
    border: 1px solid var(--cream);
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

.progress-diamond.active {
    background: var(--burgundy);
    box-shadow: 0 0 6px rgba(107, 29, 58, 0.4);
}

/* ========================================
   Typography
   ======================================== */

.label-accent {
    font-family: 'Cutive Mono', monospace;
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--wine);
    opacity: 0.6;
    display: block;
    margin-bottom: 1rem;
}

.body-text {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 400;
    font-size: clamp(0.95rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    color: var(--charcoal);
}

/* ========================================
   Sections Base
   ======================================== */

.section {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.diagonal-clip {
    position: absolute;
    top: -40px;
    left: 0;
    right: 0;
    height: 80px;
    background: inherit;
    clip-path: polygon(0 100%, 100% 0, 100% 100%, 0 100%);
    z-index: 2;
}

/* ========================================
   Section 1: Opening Field
   ======================================== */

.section-opening {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cream);
    position: relative;
}

.opening-content {
    text-align: center;
    position: relative;
    z-index: 3;
}

.opening-title {
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    font-size: clamp(2rem, 5vw, 4.5rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--charcoal);
    text-shadow:
        var(--neo-distance) var(--neo-distance) calc(var(--neo-blur) + 4px) var(--cream-shadow),
        calc(var(--neo-distance) * -1) calc(var(--neo-distance) * -1) calc(var(--neo-blur) + 4px) var(--cream-light);
    animation: breathe 8s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% {
        text-shadow:
            4px 4px 10px var(--cream-shadow),
            -4px -4px 10px var(--cream-light);
    }
    50% {
        text-shadow:
            4px 4px 14px var(--cream-shadow),
            -4px -4px 14px var(--cream-light);
    }
}

.opening-subtitle {
    font-family: 'Cutive Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    color: var(--plum);
    margin-top: 1.5rem;
    opacity: 0.7;
}

/* Hex nodes in opening */
.hex-node {
    position: absolute;
    width: 32px;
    height: 32px;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: linear-gradient(135deg, var(--rose-gold), var(--cream));
    box-shadow:
        2px 2px var(--neo-blur) var(--cream-shadow),
        -2px -2px var(--neo-blur) var(--cream-light);
    z-index: 5;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.hex-node-1 {
    bottom: 60px;
    left: 15%;
    opacity: 0.7;
}

.hex-node-2 {
    bottom: 40px;
    right: 20%;
    opacity: 0.5;
}

/* ========================================
   Section 2: First Diagonal Cut
   ======================================== */

.section-diagonal {
    min-height: 100vh;
    background: #EDE5DB;
    padding: 120px 0 80px;
    clip-path: polygon(0 40px, 100% 0, 100% calc(100% - 40px), 0 100%);
    margin-top: -40px;
    position: relative;
}

.diagonal-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 4rem;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 3;
}

.photo-frame {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    box-shadow:
        inset 3px 3px 6px var(--cream-shadow),
        inset -3px -3px 6px var(--cream-light);
}

.photo-frame-wide {
    grid-column: 1 / 8;
    height: 400px;
}

.photo-duotone {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--burgundy) 0%, var(--cream) 100%);
    opacity: 0.7;
    mix-blend-mode: multiply;
    z-index: 2;
}

.photo-texture {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.photo-frame-wide .photo-texture {
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 2px,
            rgba(107, 29, 58, 0.05) 2px,
            rgba(107, 29, 58, 0.05) 4px
        ),
        linear-gradient(180deg, #D4C4B8 0%, #C49A82 50%, #F5EDE3 100%);
}

.diagonal-text-block {
    grid-column: 9 / 13;
    transform: rotate(-2deg);
    padding: 2rem;
    background: var(--cream);
    border-radius: 4px;
    box-shadow:
        inset 2px 2px 5px var(--cream-shadow),
        inset -2px -2px 5px var(--cream-light);
}

/* Hex seam nodes */
.hex-seam {
    z-index: 10;
}

.hex-seam-1 {
    top: 30px;
    left: 25%;
    opacity: 0.6;
}

.hex-seam-2 {
    top: 15px;
    left: 50%;
    opacity: 0.8;
}

.hex-seam-3 {
    top: 45px;
    right: 30%;
    opacity: 0.5;
}

/* ========================================
   Section 3: Crystalline Interlude
   ======================================== */

.section-crystalline {
    height: 60vh;
    background: var(--cream);
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(0 40px, 100% 0, 100% calc(100% - 40px), 0 100%);
    margin-top: -40px;
    position: relative;
}

.crystalline-svg {
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
}

.prism-line {
    stroke: var(--cream-shadow);
    stroke-width: 1;
    opacity: 0.4;
}

.hex-svg-node {
    fill: url(#hexGrad);
    stroke: var(--rose-gold);
    stroke-width: 0.5;
}

@keyframes hexPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.hex-pulse {
    animation: hexPulse 4s ease-in-out infinite;
}

@keyframes facetTurn {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.crystalline-group {
    transform-origin: center center;
    animation: facetTurn 720s linear infinite;
}

/* ========================================
   Section 4: Archive Panels
   ======================================== */

.section-archive {
    min-height: 140vh;
    background: #EDE5DB;
    padding: 120px 0 120px;
    clip-path: polygon(0 40px, 100% 0, 100% calc(100% - 40px), 0 100%);
    margin-top: -40px;
    position: relative;
}

.archive-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 4rem;
    display: flex;
    flex-direction: column;
    gap: 6rem;
    position: relative;
    z-index: 3;
}

.archive-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
    background: var(--cream);
    border-radius: 6px;
    overflow: hidden;
    box-shadow:
        6px 6px 16px var(--cream-shadow),
        -6px -6px 16px var(--cream-light);
    transition: box-shadow 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
    transform: translateY(30px);
}

.archive-panel.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease, box-shadow 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.archive-panel:nth-child(1) {
    margin-left: 0;
}

.archive-panel:nth-child(2) {
    margin-left: 8%;
    transition-delay: 0.15s;
}

.archive-panel:nth-child(3) {
    margin-left: 4%;
    transition-delay: 0.3s;
}

.panel-photo {
    position: relative;
    height: 280px;
    overflow: hidden;
    border-radius: 4px;
    margin: 1.5rem;
    box-shadow:
        inset 3px 3px 6px var(--cream-shadow),
        inset -3px -3px 6px var(--cream-light);
}

.panel-photo .photo-duotone {
    background: linear-gradient(160deg, var(--burgundy) 0%, var(--wine) 50%, var(--cream) 100%);
    opacity: 0.65;
    transition: opacity 1.2s ease;
}

.photo-texture-stone {
    background:
        radial-gradient(circle at 30% 40%, rgba(196, 154, 130, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(212, 196, 184, 0.5) 0%, transparent 40%),
        linear-gradient(180deg, #BFB0A3 0%, #D4C4B8 50%, #C49A82 100%);
}

.photo-texture-fabric {
    background:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 1px,
            rgba(107, 29, 58, 0.03) 1px,
            rgba(107, 29, 58, 0.03) 2px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 1px,
            rgba(140, 58, 94, 0.02) 1px,
            rgba(140, 58, 94, 0.02) 2px
        ),
        linear-gradient(135deg, #D4C4B8 0%, #C49A82 40%, #F5EDE3 100%);
}

.photo-texture-crystal {
    background:
        linear-gradient(60deg, transparent 40%, rgba(196, 154, 130, 0.3) 41%, transparent 42%),
        linear-gradient(120deg, transparent 40%, rgba(196, 154, 130, 0.3) 41%, transparent 42%),
        linear-gradient(180deg, transparent 40%, rgba(196, 154, 130, 0.2) 41%, transparent 42%),
        radial-gradient(circle at 50% 50%, rgba(255, 248, 240, 0.6) 0%, transparent 60%),
        linear-gradient(180deg, #C49A82 0%, #D4C4B8 50%, #F5EDE3 100%);
}

.panel-text {
    padding: 2rem 2.5rem 2rem 0;
}

.panel-title {
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--charcoal);
    margin-bottom: 1rem;
}

/* Hex archive nodes */
.hex-archive-1 {
    top: 50%;
    right: 40px;
    opacity: 0.5;
}

.hex-archive-2 {
    bottom: 120px;
    left: 60px;
    opacity: 0.6;
}

/* ========================================
   Section 5: Closing Field
   ======================================== */

.section-closing {
    min-height: 80vh;
    background: var(--cream);
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(0 40px, 100% 0, 100% 100%, 0 100%);
    margin-top: -40px;
    position: relative;
}

.closing-content {
    text-align: center;
    position: relative;
    z-index: 3;
}

.closing-title {
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    font-size: clamp(2rem, 5vw, 4.5rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--charcoal);
    text-shadow:
        inset 0 0 0 transparent;
    /* Inset/recessed neomorphic appearance */
    background: var(--cream);
    -webkit-background-clip: text;
    background-clip: text;
    filter: drop-shadow(2px 2px 3px var(--cream-shadow)) drop-shadow(-1px -1px 2px var(--cream-light));
    opacity: 0.65;
}

.closing-subtitle {
    font-family: 'Cutive Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    color: var(--plum);
    margin-top: 1.5rem;
    opacity: 0.5;
}

.closing-line {
    width: 0;
    height: 2px;
    background: var(--burgundy);
    margin: 3rem auto 0;
    transition: width 3s ease;
}

.closing-line.animate {
    width: 80vw;
}

/* ========================================
   Reveal Animation
   ======================================== */

.reveal-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-element.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Cursor Glow
   ======================================== */

.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(196, 154, 130, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 50;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.5s ease;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ========================================
   Neomorphic Hover States
   ======================================== */

.archive-panel:hover {
    box-shadow:
        8px 8px 20px var(--cream-shadow),
        -8px -8px 20px var(--cream-light);
}

.archive-panel:hover .photo-duotone {
    opacity: 0.35;
}

.photo-frame-wide:hover .photo-duotone {
    opacity: 0.35;
    transition: opacity 1.2s ease;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 900px) {
    .diagonal-content {
        grid-template-columns: 1fr;
        padding: 0 2rem;
    }

    .photo-frame-wide {
        grid-column: 1 / -1;
        height: 280px;
    }

    .diagonal-text-block {
        grid-column: 1 / -1;
        transform: rotate(0deg);
    }

    .archive-panel {
        grid-template-columns: 1fr;
    }

    .panel-text {
        padding: 1.5rem;
    }

    .archive-panel:nth-child(2),
    .archive-panel:nth-child(3) {
        margin-left: 0;
    }

    .progress-track {
        left: 12px;
    }

    .archive-container {
        padding: 0 2rem;
    }
}

@media (max-width: 600px) {
    .opening-title,
    .closing-title {
        font-size: clamp(1.5rem, 8vw, 2.5rem);
    }

    .panel-photo {
        height: 200px;
        margin: 1rem;
    }

    .section-archive {
        padding: 80px 0;
    }

    .archive-container {
        gap: 3rem;
        padding: 0 1rem;
    }
}