/* ===================================================
   prototype.bar - Cyanotype-CRT Specimen Archive
   =================================================== */

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

:root {
    --bg-deep: #050E18;
    --bg-primary: #0A1628;
    --card-surface: #0D1F2D;
    --accent-cyan: #00D2D3;
    --text-primary: #E8F1F2;
    --text-secondary: #4A6FA5;
    --annotation: #7EC8E3;
    --glitch-red: #C44569;
    --glitch-green: #33D9B2;
    --accent-warm: #D4A574;
    --bg-mid: #081422;
    --border-navy: #0A3D62;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Fira Code', monospace;
    font-weight: 400;
    font-size: clamp(0.85rem, 1.2vw, 1.05rem);
    letter-spacing: 0.04em;
    line-height: 1.7;
    overflow-x: hidden;
    cursor: crosshair;
}

/* --- Scan Lines Overlay --- */
#scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 2px,
        rgba(0, 0, 0, 0.04) 2px,
        rgba(0, 0, 0, 0.04) 4px
    );
}

/* --- Cursor Trail --- */
#cursor-trail {
    position: fixed;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 999;
    background: radial-gradient(circle, rgba(0, 210, 211, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: opacity 0.8s ease-out;
    opacity: 0;
}

/* --- Header Zone --- */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 8vh;
    z-index: 100;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(to bottom, var(--bg-primary) 60%, transparent);
    padding: 0 80px;
}

.header-domain {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    letter-spacing: 0.12em;
    color: var(--text-secondary);
}

.cursor-blink {
    animation: blink 1s step-end infinite;
    color: var(--accent-cyan);
}

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

.header-line {
    position: relative;
    width: 100%;
    height: 1px;
    background: var(--border-navy);
    margin-top: 4px;
    cursor: pointer;
    transition: height 0.2s;
}

.header-line .line-cyan,
.header-line .line-magenta,
.header-line .line-navy {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    top: 0;
    transition: transform 0.3s, opacity 0.3s;
    opacity: 0;
}

.header-line .line-cyan { background: var(--accent-cyan); }
.header-line .line-magenta { background: var(--glitch-red); }
.header-line .line-navy { background: var(--border-navy); }

.header-line:hover .line-cyan {
    opacity: 1;
    transform: translateY(-2px);
}
.header-line:hover .line-magenta {
    opacity: 1;
    transform: translateY(2px);
}
.header-line:hover .line-navy {
    opacity: 1;
    transform: translateY(0);
}

/* --- Filter Panel --- */
.filter-panel {
    display: flex;
    gap: 24px;
    padding: 12px 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.4s ease;
}

.filter-panel.open {
    max-height: 60px;
    opacity: 1;
    padding: 12px 0;
}

.filter-item {
    font-family: 'Fira Code', monospace;
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s;
    text-transform: lowercase;
}

.filter-item:hover,
.filter-item.active {
    color: var(--accent-cyan);
}

/* --- Hero Zone --- */
.zone-hero {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-primary);
    overflow: hidden;
}

.hero-content {
    position: relative;
    text-align: center;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: clamp(6rem, 14vw, 12rem);
    letter-spacing: 0.4em;
    color: var(--text-primary);
    line-height: 1.15;
    margin-right: -0.4em;
}

.hero-glitch-tear {
    position: absolute;
    top: 60%;
    left: -5%;
    width: 110%;
    height: 4px;
    background: var(--accent-cyan);
    transform: translateX(12px);
    opacity: 0.7;
    mix-blend-mode: screen;
}

.hero-glitch-tear::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--glitch-red);
    transform: translateX(-4px) translateY(-2px);
    opacity: 0.5;
}

.hero-glitch-tear::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--glitch-green);
    transform: translateX(4px) translateY(2px);
    opacity: 0.5;
}

.hero-bar {
    display: block;
    font-family: 'Fira Code', monospace;
    font-size: 1.2rem;
    letter-spacing: 0.8em;
    color: var(--accent-cyan);
    margin-top: 16px;
    margin-right: -0.8em;
}

.hero-chevron {
    position: absolute;
    bottom: 48px;
    animation: pulse-chevron 2s ease-in-out infinite;
}

@keyframes pulse-chevron {
    0%, 100% { opacity: 0.3; transform: translateY(0); }
    50% { opacity: 0.7; transform: translateY(6px); }
}

/* --- Portfolio Grid Zone --- */
.zone-portfolio {
    position: relative;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
    padding: 80px 80px 40px;
    background-color: var(--bg-primary);
    transition: background-color 0.5s;
}

/* Card Span Sizes */
.specimen-card.span-3 { grid-column: span 3; }
.specimen-card.span-4 { grid-column: span 4; }
.specimen-card.span-5 { grid-column: span 5; }
.specimen-card.span-6 { grid-column: span 6; }

/* Asymmetric Placement */
.specimen-card:nth-child(3) { grid-column-start: 7; grid-column-end: span 3; }
.specimen-card:nth-child(5) { grid-column-start: 2; }
.specimen-card:nth-child(6) { grid-column-start: 5; }
.specimen-card:nth-child(9) { grid-column-start: 2; }
.specimen-card:nth-child(10) { grid-column-start: 8; }

/* Glitch Dividers */
.glitch-divider {
    grid-column: 1 / -1;
    height: 40px;
    position: relative;
    overflow: hidden;
    margin: 20px 0;
}

.glitch-band {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            to bottom,
            transparent 0px,
            transparent 3px,
            rgba(0, 210, 211, 0.06) 3px,
            rgba(0, 210, 211, 0.06) 4px
        );
    opacity: 0;
    transition: opacity 0.6s;
}

.glitch-divider.triggered .glitch-band {
    opacity: 1;
    animation: glitch-shift 0.4s ease-out forwards;
}

@keyframes glitch-shift {
    0% { transform: translateX(-20px); filter: hue-rotate(0deg); }
    30% { transform: translateX(14px); filter: hue-rotate(120deg); }
    60% { transform: translateX(-8px); filter: hue-rotate(-60deg); }
    100% { transform: translateX(0); filter: hue-rotate(0deg); }
}

.glitch-band::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--glitch-red);
    opacity: 0.15;
    transform: translateX(10px);
}

.glitch-band::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--glitch-green);
    opacity: 0.12;
    transform: translateX(-8px);
}

/* --- Specimen Cards --- */
.specimen-card {
    position: relative;
    background: var(--card-surface);
    padding: 32px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.specimen-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.specimen-card.featured {
    border-left: 2px solid var(--accent-warm);
}

/* --- Animated Border Trace --- */
.card-border-trace {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

.card-border-trace::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: conic-gradient(
        from var(--trace-angle, 0deg),
        transparent 0deg,
        transparent 340deg,
        var(--accent-cyan) 345deg,
        var(--accent-cyan) 355deg,
        transparent 360deg
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    padding: 1px;
    animation: trace-rotate 8s cubic-bezier(0.25, 0.1, 0.25, 1) infinite;
    animation-delay: var(--trace-delay, 0s);
}

.card-border-trace::after {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: conic-gradient(
        from var(--trace-angle, 0deg),
        transparent 0deg,
        transparent 320deg,
        rgba(0, 210, 211, 0.2) 330deg,
        rgba(0, 210, 211, 0.2) 340deg,
        transparent 345deg,
        transparent 360deg
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    padding: 1px;
    animation: trace-rotate 8s cubic-bezier(0.25, 0.1, 0.25, 1) infinite;
    animation-delay: var(--trace-delay, 0s);
    opacity: 0.6;
    transition: opacity 2s;
}

@keyframes trace-rotate {
    from { --trace-angle: 0deg; }
    to { --trace-angle: 360deg; }
}

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

/* Stagger border trace per card */
.specimen-card:nth-child(1) .card-border-trace::before,
.specimen-card:nth-child(1) .card-border-trace::after { animation-delay: 0s; }
.specimen-card:nth-child(2) .card-border-trace::before,
.specimen-card:nth-child(2) .card-border-trace::after { animation-delay: -1s; }
.specimen-card:nth-child(3) .card-border-trace::before,
.specimen-card:nth-child(3) .card-border-trace::after { animation-delay: -2s; }
.specimen-card:nth-child(5) .card-border-trace::before,
.specimen-card:nth-child(5) .card-border-trace::after { animation-delay: -3s; }
.specimen-card:nth-child(6) .card-border-trace::before,
.specimen-card:nth-child(6) .card-border-trace::after { animation-delay: -4s; }
.specimen-card:nth-child(7) .card-border-trace::before,
.specimen-card:nth-child(7) .card-border-trace::after { animation-delay: -5s; }
.specimen-card:nth-child(9) .card-border-trace::before,
.specimen-card:nth-child(9) .card-border-trace::after { animation-delay: -6s; }
.specimen-card:nth-child(10) .card-border-trace::before,
.specimen-card:nth-child(10) .card-border-trace::after { animation-delay: -7s; }
.specimen-card:nth-child(12) .card-border-trace::before,
.specimen-card:nth-child(12) .card-border-trace::after { animation-delay: -0.5s; }
.specimen-card:nth-child(13) .card-border-trace::before,
.specimen-card:nth-child(13) .card-border-trace::after { animation-delay: -1.5s; }
.specimen-card:nth-child(15) .card-border-trace::before,
.specimen-card:nth-child(15) .card-border-trace::after { animation-delay: -2.5s; }
.specimen-card:nth-child(16) .card-border-trace::before,
.specimen-card:nth-child(16) .card-border-trace::after { animation-delay: -3.5s; }

/* --- Card Content --- */
.card-content {
    position: relative;
    z-index: 1;
}

.card-title {
    font-family: 'Playfair Display', serif;
    font-weight: 400;
    font-size: clamp(1.6rem, 3vw, 2.8rem);
    letter-spacing: 0.06em;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.card-descriptor {
    font-family: 'Fira Code', monospace;
    font-size: clamp(0.75rem, 1vw, 0.9rem);
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    line-height: 1.6;
}

.card-annotation {
    display: block;
    font-family: 'Caveat', cursive;
    font-weight: 400;
    font-size: clamp(0.9rem, 1.5vw, 1.2rem);
    color: var(--annotation);
    margin-top: 12px;
    transform: rotate(-1.5deg);
}

/* --- Circuit Diagrams --- */
.circuit-diagram {
    width: 100%;
    max-width: 200px;
    margin-bottom: 20px;
}

.circuit-svg {
    width: 100%;
    height: auto;
}

.circuit-line {
    stroke: var(--accent-cyan);
    stroke-width: 1;
    fill: none;
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    transition: stroke-dashoffset 1.5s ease;
    transition-delay: var(--delay, 0s);
}

.circuit-node {
    fill: none;
    stroke: var(--accent-cyan);
    stroke-width: 1;
    opacity: 0;
    transition: opacity 0.4s ease;
    transition-delay: var(--delay, 0s);
}

.specimen-card.visible .circuit-line {
    stroke-dashoffset: 0;
}

.specimen-card.visible .circuit-node {
    opacity: 1;
}

/* --- Card Hover Effects --- */
.specimen-card::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -110%;
    width: 120%;
    height: 4px;
    background: var(--accent-cyan);
    opacity: 0;
    z-index: 3;
    pointer-events: none;
    filter: hue-rotate(0deg);
}

.specimen-card:hover::before {
    animation: glitch-sweep 0.3s ease-out forwards;
}

@keyframes glitch-sweep {
    0% {
        left: -10%;
        opacity: 0.6;
        filter: hue-rotate(120deg);
    }
    100% {
        left: 110%;
        opacity: 0;
        filter: hue-rotate(0deg);
    }
}

.card-hover-meta {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 12px 32px;
    display: flex;
    gap: 16px;
    background: rgba(5, 14, 24, 0.9);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 4;
}

.specimen-card:hover .card-hover-meta {
    transform: translateY(0);
}

.meta-item {
    font-family: 'Fira Code', monospace;
    font-size: 0.7rem;
    font-weight: 300;
    color: var(--text-secondary);
    letter-spacing: 0.06em;
}

/* --- Abyssal Tear --- */
.abyssal-tear {
    position: relative;
    width: 100%;
    height: 60px;
    overflow: hidden;
    background: var(--bg-deep);
}

.tear-strip {
    position: absolute;
    top: 50%;
    left: -100%;
    width: 100%;
    height: 6px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--accent-cyan) 20%,
        var(--glitch-red) 50%,
        var(--glitch-green) 80%,
        transparent 100%
    );
    transform: translateY(-50%);
    opacity: 0;
}

.abyssal-tear.triggered .tear-strip {
    animation: abyssal-sweep 3s ease-in-out forwards;
}

@keyframes abyssal-sweep {
    0% { left: -100%; opacity: 0.8; }
    100% { left: 200%; opacity: 0; }
}

/* --- Colophon Zone --- */
.zone-colophon {
    background-color: var(--bg-deep);
    padding: 80px;
    min-height: 50vh;
    display: flex;
    align-items: flex-end;
}

.terminal-readout {
    max-width: 600px;
}

.terminal-line {
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    line-height: 2.2;
}

.terminal-prompt {
    color: var(--accent-cyan);
    margin-right: 8px;
}

.terminal-cursor .cursor-blink {
    font-size: 1rem;
}

/* --- Background Depth Transition --- */
body.depth-thermocline .zone-portfolio {
    background-color: var(--bg-primary);
}

body.depth-mesopelagic .zone-portfolio {
    background-color: var(--bg-mid);
}

body.depth-abyssal .zone-portfolio {
    background-color: var(--bg-deep);
}

/* --- Responsive: Tablet --- */
@media (max-width: 768px) {
    #header {
        padding: 0 32px;
    }

    .zone-portfolio {
        grid-template-columns: repeat(6, 1fr);
        padding: 40px 32px;
        gap: 16px;
    }

    .specimen-card.span-3,
    .specimen-card.span-4,
    .specimen-card.span-5 {
        grid-column: span 3;
    }

    .specimen-card.span-6 {
        grid-column: span 6;
    }

    .specimen-card:nth-child(3) { grid-column-start: auto; grid-column-end: span 3; }
    .specimen-card:nth-child(5) { grid-column-start: auto; }
    .specimen-card:nth-child(6) { grid-column-start: auto; }
    .specimen-card:nth-child(9) { grid-column-start: auto; }
    .specimen-card:nth-child(10) { grid-column-start: auto; }

    .hero-title {
        font-size: clamp(3rem, 10vw, 6rem);
    }

    .zone-colophon {
        padding: 40px 32px;
    }
}

/* --- Responsive: Mobile --- */
@media (max-width: 480px) {
    .zone-portfolio {
        grid-template-columns: 1fr;
        padding: 24px 16px;
        gap: 20px;
    }

    .specimen-card.span-3,
    .specimen-card.span-4,
    .specimen-card.span-5,
    .specimen-card.span-6 {
        grid-column: span 1;
    }

    .specimen-card:nth-child(even) {
        margin-left: 32px;
    }

    .specimen-card:nth-child(3),
    .specimen-card:nth-child(5),
    .specimen-card:nth-child(6),
    .specimen-card:nth-child(9),
    .specimen-card:nth-child(10) {
        grid-column-start: auto;
        grid-column-end: span 1;
    }

    #header {
        padding: 0 16px;
    }

    .hero-title {
        font-size: clamp(2.5rem, 14vw, 5rem);
        letter-spacing: 0.2em;
        margin-right: -0.2em;
    }

    .hero-bar {
        letter-spacing: 0.4em;
        margin-right: -0.4em;
    }

    .zone-colophon {
        padding: 40px 16px;
    }

    .filter-panel {
        flex-wrap: wrap;
        gap: 12px;
    }

    .card-hover-meta {
        position: relative;
        transform: none;
        background: transparent;
        padding: 12px 0 0;
        flex-wrap: wrap;
    }
}

/* --- Filtered State --- */
.specimen-card.filtered-out {
    opacity: 0 !important;
    transform: scale(0.95) translateY(10px) !important;
    pointer-events: none;
    height: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
    transition: opacity 0.4s, transform 0.4s, height 0.4s, padding 0.4s;
}