/* ============================================================
   desca.dev -- Inflated 3D Portfolio / Geological Descent
   ============================================================ */

/* --- Custom Properties (Palette from DESIGN.md) --- */
:root {
    --color-primary-dark: #0d1f0d;
    --color-primary-mid: #1a3c1a;
    --color-accent-warm: #c4a84d;
    --color-accent-cool: #5a8a6e;
    --color-surface-light: #e8e2d4;
    --color-text-primary: #3a3a2e;
    --color-text-secondary: #7a8a5c;
    --color-danger: #8a3d2e;
    --color-shadow: #1a2e1a;

    --font-display: 'Anybody', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --skew-angle: 12deg;
    --spacing-unit: 80px;
    --shadow-offset-x: 0px;
    --shadow-offset-y: 4px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-surface-light);
    background: var(--color-primary-mid);
    background: radial-gradient(ellipse at 50% 30%, var(--color-primary-mid), var(--color-primary-dark) 70%);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.68;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--color-accent-warm);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-surface-light);
}

/* --- Noise Texture Overlay --- */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* --- Angular Connector SVG Layer --- */
.angular-connectors {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.6s ease;
}

body.loaded .angular-connectors {
    opacity: 1;
}

.connector {
    stroke: var(--color-accent-cool);
    stroke-width: 2;
    stroke-dasharray: 800;
    stroke-dashoffset: 800;
    opacity: 0.3;
    transition: stroke-dashoffset 1.8s ease;
}

.connector.drawn {
    stroke-dashoffset: 0;
}

/* --- Floating Inflated Navigation --- */
.inflated-nav {
    position: fixed;
    bottom: 32px;
    right: 32px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.nav-pill {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--color-primary-mid) 0%, var(--color-primary-dark) 40%, var(--color-primary-mid) 100%);
    background-size: 200% 200%;
    color: var(--color-surface-light);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    text-decoration: none;
    box-shadow:
        0 4px 0 var(--color-shadow),
        0 8px 16px rgba(26, 46, 26, 0.4);
    transition:
        transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.35s ease,
        background-position 3s ease;
    animation: ambientShift 6s ease infinite;
}

.nav-pill:hover {
    transform: scaleY(0.85);
    box-shadow:
        0 2px 0 var(--color-shadow),
        0 4px 8px rgba(26, 46, 26, 0.4);
    color: var(--color-accent-warm);
}

.nav-pill.active {
    background: var(--color-accent-warm);
    color: var(--color-primary-dark);
    box-shadow:
        0 4px 0 #8a7a2e,
        0 8px 16px rgba(196, 168, 77, 0.3);
}

.nav-pill.active:hover {
    color: var(--color-primary-dark);
}

@keyframes ambientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* --- Grid Layout (3-column with unequal widths) --- */
.grid-layout {
    display: grid;
    grid-template-columns: 38% 24% 38%;
    gap: 0;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
}

.grid-layout--second {
    margin-top: var(--spacing-unit);
}

.grid-col {
    position: relative;
}

.grid-col--left,
.grid-col--right {
    padding: 20px;
}

/* Parallelogram clip on grid columns (12-degree skew) */
.grid-col--left {
    clip-path: polygon(0 0, 100% 2%, 100% 98%, 0 100%);
}

.grid-col--right {
    clip-path: polygon(0 2%, 100% 0, 100% 100%, 0 98%);
}

.grid-col--center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 10px;
}

/* --- Stratum Sections --- */
.stratum {
    position: relative;
    padding: calc(var(--spacing-unit) * 2) 0;
    transition: background-color 0.5s ease;
}

.stratum--surface {
    padding-top: calc(var(--spacing-unit) * 1.5);
}

.stratum--deep {
    padding-bottom: calc(var(--spacing-unit) * 3);
}

/* --- Typography --- */

/* Display / Headlines -- Anybody variable width */
.site-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 800;
    font-stretch: 150%;
    line-height: 0.95;
    letter-spacing: 0.02em;
    color: var(--color-surface-light);
    margin-bottom: 24px;
    transform-origin: center bottom;
}

.title-accent {
    color: var(--color-accent-warm);
}

.section-heading {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    font-weight: 600;
    font-stretch: 130%;
    line-height: 0.95;
    letter-spacing: 0.02em;
    color: var(--color-surface-light);
    margin-bottom: 20px;
    transform-origin: center bottom;
}

.card-title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 2.4rem);
    font-weight: 800;
    font-stretch: 140%;
    line-height: 0.95;
    letter-spacing: 0.02em;
    color: var(--color-surface-light);
    margin-bottom: 12px;
    transform-origin: center bottom;
}

/* Body Text -- DM Sans */
.body-text {
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 400;
    line-height: 1.68;
    letter-spacing: 0.01em;
    color: var(--color-surface-light);
    margin-bottom: 16px;
}

.card-desc {
    font-size: 0.95rem;
    color: rgba(232, 226, 212, 0.85);
}

/* Annotations / Metadata -- JetBrains Mono */
.annotation-block {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.annotation {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-secondary);
}

.diamond-marker {
    font-size: 1rem;
    color: var(--color-accent-cool);
    margin: 4px 0;
}

/* --- Inflate Text Animation --- */
.inflate-text {
    transform: scaleY(0.3) scaleX(1.2);
    opacity: 0;
    transition:
        transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1),
        opacity 0.6s ease;
}

.inflate-text.inflated {
    transform: scaleY(1) scaleX(1);
    opacity: 1;
}

/* --- Project Cards (Inflated 3D) --- */
.project-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 800px;
    cursor: default;
    margin-bottom: 20px;
}

.card-inner {
    background: linear-gradient(135deg, var(--color-primary-mid) 0%, var(--color-primary-dark) 40%, var(--color-primary-mid) 100%);
    background-size: 200% 200%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow:
        0 2px 0 rgba(26, 62, 26, 0.6),
        0 4px 0 rgba(26, 46, 26, 0.5),
        0 8px 0 rgba(13, 31, 13, 0.4),
        0 16px 32px rgba(13, 31, 13, 0.5);
    transition:
        transform 0.2s ease-out,
        box-shadow 0.3s ease;
    animation: ambientShift 8s ease infinite;
    border: 1px solid rgba(90, 138, 110, 0.15);
}

.project-card:hover .card-inner {
    box-shadow:
        0 2px 0 rgba(26, 62, 26, 0.6),
        0 4px 0 rgba(26, 46, 26, 0.5),
        0 12px 0 rgba(13, 31, 13, 0.4),
        0 24px 48px rgba(13, 31, 13, 0.6);
}

.card-content {
    padding: 24px;
}

/* --- Tag Pills (Inflated Capsules) --- */
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.tag-pill {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 50px;
    background: rgba(90, 138, 110, 0.2);
    color: var(--color-accent-cool);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    box-shadow:
        0 2px 0 rgba(26, 46, 26, 0.3),
        0 4px 8px rgba(13, 31, 13, 0.2);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.tag-pill:hover {
    transform: scaleY(0.9);
    background: rgba(90, 138, 110, 0.35);
}

/* --- Glitch Image System --- */
.glitch-image-container {
    position: relative;
    overflow: hidden;
    background: var(--color-primary-mid);
}

.glitch-image {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: var(--color-primary-dark);
}

.glitch-image--hero {
    height: 400px;
}

/* Placeholder image patterns using gradients */
.glitch-image--hero {
    background:
        linear-gradient(135deg, var(--color-primary-mid) 25%, transparent 25%),
        linear-gradient(225deg, var(--color-accent-cool) 25%, transparent 25%),
        linear-gradient(45deg, var(--color-primary-dark) 25%, transparent 25%),
        linear-gradient(315deg, var(--color-accent-warm) 10%, var(--color-primary-dark) 90%);
}

.glitch-image--project1 {
    background:
        linear-gradient(160deg, var(--color-primary-mid) 30%, var(--color-accent-cool) 70%),
        linear-gradient(45deg, #1a2e1a 40%, #5a8a6e 100%);
}

.glitch-image--project2 {
    background:
        linear-gradient(200deg, var(--color-primary-dark) 20%, var(--color-accent-warm) 80%),
        linear-gradient(135deg, #0d1f0d 30%, #c4a84d 100%);
}

.glitch-image--project3 {
    background:
        linear-gradient(170deg, #1a3c1a 25%, #8a3d2e 75%),
        linear-gradient(45deg, var(--color-primary-dark) 50%, var(--color-danger) 100%);
}

.glitch-image--project4 {
    background:
        linear-gradient(140deg, #0d1f0d 20%, #c4a84d 50%, #5a8a6e 80%);
}

.glitch-image--project5 {
    background:
        linear-gradient(190deg, #1a2e1a 30%, #7a8a5c 70%);
}

.glitch-image--project6 {
    background:
        linear-gradient(220deg, var(--color-primary-dark) 10%, var(--color-accent-cool) 50%, var(--color-primary-mid) 90%);
}

/* Channel splitting (RGB offset) */
.glitch-channel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    mix-blend-mode: screen;
    opacity: 0.6;
    transition: transform 0.3s ease;
}

.glitch-channel--red {
    background: rgba(138, 61, 46, 0.4);
    transform: translateX(4px);
}

.glitch-channel--green {
    background: rgba(90, 138, 110, 0.3);
    transform: translateX(0);
}

.glitch-channel--blue {
    background: rgba(26, 60, 26, 0.4);
    transform: translateX(-4px);
}

/* Hover: intensify channel split */
.glitch-image-container:hover .glitch-channel--red {
    transform: translateX(8px);
}

.glitch-image-container:hover .glitch-channel--blue {
    transform: translateX(-8px);
}

/* Scanlines */
.scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(13, 31, 13, 0.3) 0px,
        rgba(13, 31, 13, 0.3) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 2;
}

/* Block displacement */
.block-displace {
    position: absolute;
    left: 0;
    width: 100%;
    height: 12px;
    background: inherit;
    z-index: 3;
    animation: blockGlitch 4s steps(1) infinite;
    opacity: 0.7;
}

.block-displace--1 {
    top: 30%;
    animation-delay: 0s;
}

.block-displace--2 {
    top: 65%;
    animation-delay: 1.5s;
}

.block-displace--3 {
    top: 48%;
    animation-delay: 2.8s;
}

/* Hover: speed up block displacement */
.glitch-image-container:hover .block-displace {
    animation-duration: 1s;
}

@keyframes blockGlitch {
    0% { transform: translateX(0); }
    10% { transform: translateX(4px); }
    20% { transform: translateX(-3px); }
    30% { transform: translateX(6px); }
    40% { transform: translateX(-2px); }
    50% { transform: translateX(0); }
    60% { transform: translateX(5px); }
    70% { transform: translateX(-4px); }
    80% { transform: translateX(2px); }
    90% { transform: translateX(-6px); }
    100% { transform: translateX(0); }
}

/* --- Chevron / Zigzag Dividers --- */
.chevron-divider {
    width: 80%;
    max-width: 1200px;
    margin: var(--spacing-unit) auto;
    height: 30px;
}

.chevron-divider svg {
    width: 100%;
    height: 100%;
}

.zigzag-line {
    stroke-dasharray: 300;
    stroke-dashoffset: 300;
    transition: stroke-dashoffset 1.2s ease;
}

.zigzag-line.drawn {
    stroke-dashoffset: 0;
}

/* --- Text Block --- */
.text-block {
    padding: 32px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(26, 60, 26, 0.4) 0%, rgba(13, 31, 13, 0.6) 100%);
    border: 1px solid rgba(90, 138, 110, 0.1);
    box-shadow:
        0 2px 0 rgba(26, 46, 26, 0.3),
        0 8px 24px rgba(13, 31, 13, 0.3);
}

/* --- Contact Block --- */
.contact-block {
    padding: 32px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(26, 60, 26, 0.4) 0%, rgba(13, 31, 13, 0.6) 100%);
    border: 1px solid rgba(90, 138, 110, 0.1);
    box-shadow:
        0 2px 0 rgba(26, 46, 26, 0.3),
        0 8px 24px rgba(13, 31, 13, 0.3);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
    margin-bottom: 32px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.06em;
    color: var(--color-accent-warm);
    transition: transform 0.3s ease, color 0.3s ease;
}

.contact-link:hover {
    transform: translateX(8px);
    color: var(--color-surface-light);
}

.link-diamond {
    color: var(--color-accent-cool);
    font-size: 0.65rem;
}

/* --- Depth Indicator --- */
.depth-indicator {
    margin-top: 40px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.depth-bar {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent-cool), transparent);
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    .inflate-text {
        transform: none;
        opacity: 1;
        transition: none;
    }

    .block-displace {
        animation: none;
        transform: none;
    }

    .nav-pill {
        animation: none;
    }

    .card-inner {
        animation: none;
        transition: none;
    }

    .glitch-channel {
        transition: none;
    }

    .connector {
        stroke-dasharray: none;
        stroke-dashoffset: 0;
    }

    .zigzag-line {
        stroke-dasharray: none;
        stroke-dashoffset: 0;
    }
}

/* --- Responsive: Mobile --- */
@media (max-width: 768px) {
    .grid-layout {
        grid-template-columns: 1fr;
        padding: 0 20px;
        gap: 24px;
    }

    .grid-col--left,
    .grid-col--right {
        clip-path: none;
    }

    .grid-col--center {
        order: -1;
    }

    .annotation-block {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .inflated-nav {
        bottom: 16px;
        right: 16px;
        gap: 6px;
    }

    .nav-pill {
        padding: 8px 14px;
        font-size: 0.6rem;
    }

    .site-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .stratum {
        padding: calc(var(--spacing-unit) * 1) 0;
    }

    .glitch-image {
        height: 200px;
    }

    .glitch-image--hero {
        height: 260px;
    }

    .chevron-divider {
        width: 90%;
        margin: 40px auto;
    }

    .grid-layout--second {
        margin-top: 40px;
    }

    .angular-connectors {
        display: none;
    }
}

/* --- Responsive: Small Mobile --- */
@media (max-width: 480px) {
    .site-title {
        font-size: clamp(2rem, 12vw, 3rem);
    }

    .section-heading {
        font-size: clamp(1.4rem, 6vw, 2rem);
    }

    .card-title {
        font-size: clamp(1.2rem, 5vw, 1.6rem);
    }

    .body-text {
        font-size: 0.95rem;
    }

    .card-content {
        padding: 16px;
    }

    .text-block,
    .contact-block {
        padding: 20px;
    }
}

/* --- Responsive: Tablet --- */
@media (min-width: 769px) and (max-width: 1024px) {
    .grid-layout {
        grid-template-columns: 35% 30% 35%;
        padding: 0 24px;
    }
}

/* --- Scrollbar Styling --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-primary-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--color-accent-cool);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-warm);
}

/* --- Selection --- */
::selection {
    background: var(--color-accent-warm);
    color: var(--color-primary-dark);
}