/* ==========================================================================
   hanun.ai v2 - Burgundy-Cream Glassmorphism Portfolio
   Aesthetic: glassmorphism / Layout: portfolio-grid / Type: tech-mono
   Palette: burgundy-cream / Patterns: parallax / Imagery: isometric-icons
   Motifs: cultural / Tone: mysterious-moody
   ========================================================================== */

:root {
    /* Backdrop tones */
    --backdrop-deep: #3a1322;
    --backdrop-edge: #1a0710;
    --mid-wash: #5a1f33;
    --glass-tint: #4a1a2a;

    /* Cream tones */
    --cream-primary: #f4ead5;
    --cream-soft: #e8dcc4;
    --cream-strong: #fbf6e8;
    --cream-mid: #c8b89a;

    /* Accents */
    --accent-gold: #c4a062;
    --accent-mist: #9b7888;

    /* Glass system */
    --glass-bg: rgba(244, 234, 213, 0.04);
    --glass-bg-hover: rgba(244, 234, 213, 0.07);
    --glass-border: rgba(244, 234, 213, 0.22);
    --glass-border-hover: rgba(244, 234, 213, 0.45);
    --glass-blur: 24px;
    --glass-blur-hover: 8px;
    --glass-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.55), 0 8px 16px -8px rgba(0, 0, 0, 0.35);

    /* Typography */
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --font-serif: 'Cormorant Garamond', 'Iowan Old Style', Georgia, serif;
    --font-kr: 'Noto Serif KR', 'Cormorant Garamond', serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-mono);
    background: var(--backdrop-edge);
    color: var(--cream-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    cursor: default;
}

a {
    color: inherit;
    text-decoration: none;
}

img, svg {
    display: block;
    max-width: 100%;
}

/* ============================================================
   Backdrop & parallax layers
   ============================================================ */

.backdrop {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.backdrop-gradient {
    position: absolute;
    inset: -10%;
    background:
        radial-gradient(ellipse 80% 60% at 50% 30%, var(--backdrop-deep) 0%, transparent 70%),
        radial-gradient(ellipse 100% 80% at 30% 80%, var(--mid-wash) 0%, transparent 60%),
        radial-gradient(ellipse 90% 70% at 80% 60%, #2a0e1c 0%, transparent 65%),
        linear-gradient(180deg, #1a0710 0%, #0e040a 100%);
}

.backdrop-grain {
    position: absolute;
    inset: 0;
    background-image:
        repeating-radial-gradient(
            circle at 50% 50%,
            rgba(244, 234, 213, 0.018) 0,
            rgba(244, 234, 213, 0.018) 1px,
            transparent 1px,
            transparent 3px
        ),
        repeating-linear-gradient(
            45deg,
            rgba(244, 234, 213, 0.012) 0,
            rgba(244, 234, 213, 0.012) 1px,
            transparent 1px,
            transparent 4px
        );
    mix-blend-mode: screen;
    opacity: 0.6;
}

.ink-wash-layer {
    position: absolute;
    inset: -20% -10%;
    will-change: transform;
    transform: translate3d(0, 0, 0);
    opacity: 0.55;
}

.ink-wash {
    width: 100%;
    height: 100%;
    display: block;
}

.ink-circle {
    fill: none;
    stroke: var(--cream-primary);
    stroke-width: 1;
}

.ink-circle.ink-1 {
    opacity: 0.08;
    stroke-width: 1.4;
}

.ink-circle.ink-2 {
    opacity: 0.14;
    stroke-width: 1.2;
}

.ink-circle.ink-3 {
    opacity: 0.22;
    stroke-width: 1.0;
}

.dancheong-layer {
    position: absolute;
    inset: 0;
    will-change: transform;
    transform: translate3d(0, 0, 0);
    opacity: 0.14;
    mix-blend-mode: screen;
}

.dancheong {
    width: 100%;
    height: 100%;
    display: block;
}

.vignette {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 90% 70% at 50% 50%, transparent 50%, rgba(0, 0, 0, 0.5) 100%);
    pointer-events: none;
}

/* ============================================================
   Cursor trail
   ============================================================ */

.cursor-trail {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
}

.trail-dot {
    position: absolute;
    width: 8px;
    height: 8px;
    margin-left: -4px;
    margin-top: -4px;
    border-radius: 50%;
    background: var(--cream-primary);
    mix-blend-mode: screen;
    will-change: transform, opacity;
    pointer-events: none;
}

/* ============================================================
   Glass system (shared)
   ============================================================ */

.glass {
    position: relative;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(120%);
    backdrop-filter: blur(var(--glass-blur)) saturate(120%);
    border: 1px solid var(--glass-border);
    border-radius: 18px;
    box-shadow: var(--glass-shadow);
    transition:
        backdrop-filter 0.4s ease,
        -webkit-backdrop-filter 0.4s ease,
        border-color 0.4s ease,
        background 0.4s ease,
        transform 0.4s ease;
    isolation: isolate;
}

.glass::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background:
        linear-gradient(180deg, rgba(244, 234, 213, 0.07) 0%, transparent 22%),
        linear-gradient(0deg, rgba(196, 160, 98, 0.04) 0%, transparent 30%);
    pointer-events: none;
    z-index: 0;
}

.glass::after {
    content: '';
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    box-shadow: inset 0 1px 0 0 rgba(244, 234, 213, 0.14);
    pointer-events: none;
    z-index: 0;
}

.glass > * {
    position: relative;
    z-index: 1;
}

/* ============================================================
   Topbar
   ============================================================ */

.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 18px 32px;
    background: linear-gradient(180deg, rgba(26, 7, 16, 0.78) 0%, rgba(26, 7, 16, 0) 100%);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    max-width: 1600px;
    margin: 0 auto;
}

.brand-mark {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.04em;
    color: var(--cream-strong);
}

.brand-mark .dot {
    color: var(--accent-gold);
}

.nav-mono {
    display: flex;
    gap: 28px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    color: var(--cream-mid);
}

.nav-mono a {
    position: relative;
    padding: 4px 0;
    transition: color 0.3s ease;
}

.nav-mono a::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: var(--accent-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.nav-mono a:hover {
    color: var(--cream-strong);
}

.nav-mono a:hover::after {
    transform: scaleX(1);
}

.status-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--cream-mid);
    text-transform: uppercase;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-gold);
    box-shadow: 0 0 12px var(--accent-gold);
    animation: status-pulse 2.4s ease-in-out infinite;
}

@keyframes status-pulse {
    0%, 100% { opacity: 0.5; transform: scale(0.85); }
    50% { opacity: 1; transform: scale(1.15); }
}

@media (max-width: 720px) {
    .nav-mono { display: none; }
    .topbar { padding: 14px 18px; }
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 32px 60px;
}

.hero-pane {
    width: min(60vw, 880px);
    min-height: 50vh;
    padding: 56px 64px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-pane.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-line {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    color: var(--cream-mid);
    text-transform: lowercase;
}

.logotype {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 4.5rem);
    line-height: 1.1;
    letter-spacing: 0.02em;
    color: var(--cream-strong);
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.type-target {
    display: inline-block;
    min-width: 1ch;
    color: var(--cream-strong);
}

.caret {
    display: inline-block;
    color: var(--accent-gold);
    font-size: 0.85em;
    transform: translateY(-0.05em);
    animation: blink 1.2s steps(1, end) infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(1.2rem, 2vw, 1.7rem);
    color: var(--cream-soft);
    line-height: 1.4;
}

.hero-answer {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    color: var(--cream-strong);
    letter-spacing: 0.02em;
}

.prompt-glyph {
    color: var(--accent-gold);
    margin-right: 8px;
    font-weight: 700;
}

.hl {
    color: var(--accent-gold);
}

.hero-foot {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--cream-mid);
}

.hero-arrow {
    width: 36px;
    height: 1px;
    background: var(--cream-mid);
    position: relative;
    animation: arrow-pulse 2s ease-in-out infinite;
}

.hero-arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: -3px;
    width: 8px;
    height: 8px;
    border-right: 1px solid var(--cream-mid);
    border-bottom: 1px solid var(--cream-mid);
    transform: rotate(-45deg);
}

@keyframes arrow-pulse {
    0%, 100% { transform: translateX(0); opacity: 0.6; }
    50% { transform: translateX(8px); opacity: 1; }
}

@media (max-width: 900px) {
    .hero-pane {
        width: 92vw;
        padding: 36px 28px;
    }
}

/* ============================================================
   Manifesto strip
   ============================================================ */

.manifesto {
    padding: 120px 32px;
    border-top: 1px solid rgba(244, 234, 213, 0.06);
    border-bottom: 1px solid rgba(244, 234, 213, 0.06);
}

.manifesto-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: end;
}

.manifesto-line {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: clamp(1.4rem, 2.6vw, 2.4rem);
    line-height: 1.4;
    color: var(--cream-strong);
    letter-spacing: 0.005em;
}

.manifesto-line em {
    font-style: italic;
    color: var(--accent-gold);
}

.manifesto-mono {
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.1em;
    color: var(--cream-mid);
    text-transform: uppercase;
    white-space: nowrap;
}

@media (max-width: 800px) {
    .manifesto-inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .manifesto { padding: 80px 24px; }
}

/* ============================================================
   Section heads
   ============================================================ */

.section-head {
    max-width: 1400px;
    margin: 0 auto 56px;
    padding: 0 32px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--accent-gold);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: clamp(1.8rem, 3.6vw, 3.2rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--cream-strong);
    margin-bottom: 12px;
}

.section-sub {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: clamp(1.05rem, 1.4vw, 1.3rem);
    color: var(--cream-mid);
    max-width: 600px;
}

/* ============================================================
   Capabilities portfolio grid
   ============================================================ */

.capabilities {
    padding: 120px 0 140px;
    position: relative;
}

.grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 240px;
    gap: 18px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
}

.card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow: hidden;
    cursor: default;
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        backdrop-filter 0.4s ease,
        -webkit-backdrop-filter 0.4s ease,
        border-color 0.4s ease,
        background 0.4s ease;
}

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

.card-2x1 { grid-column: span 2; }
.card-1x2 { grid-row: span 2; }
.card-2x2 { grid-column: span 2; grid-row: span 2; }

.card:hover {
    -webkit-backdrop-filter: blur(var(--glass-blur-hover)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur-hover)) saturate(160%);
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-hover);
    transform: translateY(-3px);
}

.card-iso {
    width: 72px;
    height: 72px;
    transform: scale(0.85);
    opacity: 0;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s, opacity 0.6s ease 0.2s;
}

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

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

.card-1x2 .card-iso {
    width: 96px;
    height: 96px;
}

.card-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: auto;
}

.card-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.card-title {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.4rem;
    letter-spacing: 0.02em;
    color: var(--cream-strong);
    text-transform: uppercase;
}

.card-desc {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 1.02rem;
    line-height: 1.55;
    color: var(--cream-mid);
}

.card:hover .card-desc {
    color: var(--cream-soft);
}

@media (max-width: 1100px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 220px;
    }
    .card-2x1 { grid-column: span 2; }
    .card-1x2 { grid-row: span 1; grid-column: span 1; }
}

@media (max-width: 600px) {
    .grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
        padding: 0 20px;
    }
    .card-2x1, .card-1x2, .card-2x2 {
        grid-column: span 1;
        grid-row: span 1;
    }
    .card { min-height: 220px; }
}

/* ============================================================
   Cultural threshold
   ============================================================ */

.threshold {
    position: relative;
    height: 200vh;
}

.threshold-stage {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.threshold-bg {
    position: absolute;
    inset: -10%;
    background:
        radial-gradient(ellipse 60% 40% at 50% 50%, rgba(196, 160, 98, 0.06) 0%, transparent 70%),
        linear-gradient(135deg, rgba(58, 19, 34, 0.3) 0%, rgba(26, 7, 16, 0.4) 100%);
    will-change: transform;
}

.ink-stroke {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(94vw, 1400px);
    height: auto;
    z-index: 2;
    filter: drop-shadow(0 0 20px rgba(244, 234, 213, 0.18));
}

.phase-markers {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 max(6vw, 40px);
    z-index: 3;
    pointer-events: none;
}

.phase-marker {
    width: clamp(180px, 22vw, 260px);
    padding: 24px 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: auto;
}

.phase-marker.is-active {
    opacity: 1;
    transform: translateY(0);
}

.phase-kr {
    font-family: var(--font-kr);
    font-weight: 600;
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--cream-strong);
    line-height: 1;
    letter-spacing: 0.04em;
}

.phase-en {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.22em;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.phase-line {
    width: 30px;
    height: 1px;
    background: var(--cream-mid);
    margin: 6px 0 4px;
}

.phase-desc {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 0.98rem;
    line-height: 1.5;
    color: var(--cream-mid);
    font-style: italic;
}

@media (max-width: 800px) {
    .threshold { height: 240vh; }
    .phase-markers {
        flex-direction: column;
        align-items: center;
        gap: 18px;
        padding: 60px 20px;
    }
    .phase-marker { width: min(86vw, 360px); }
}

/* ============================================================
   Method
   ============================================================ */

.method {
    padding: 140px 0 120px;
    position: relative;
}

.method-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
}

.method-col {
    padding: 36px 28px 40px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    will-change: transform;
}

.method-iso {
    width: 88px;
    height: 88px;
    margin-bottom: 8px;
}

.method-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.method-title {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: clamp(1.6rem, 2.2vw, 2rem);
    color: var(--cream-strong);
    letter-spacing: -0.01em;
}

.method-body {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 1.08rem;
    line-height: 1.65;
    color: var(--cream-soft);
}

@media (max-width: 1000px) {
    .method-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
}

/* ============================================================
   Begin / footer prompt
   ============================================================ */

.begin {
    padding: 120px 32px 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.begin-pane {
    width: min(70vw, 860px);
    min-height: 360px;
    padding: 60px 56px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    cursor: pointer;
    transition:
        backdrop-filter 0.5s ease,
        -webkit-backdrop-filter 0.5s ease,
        border-color 0.5s ease,
        background 0.5s ease,
        transform 0.5s ease;
}

.begin-pane:hover {
    -webkit-backdrop-filter: blur(8px) saturate(160%);
    backdrop-filter: blur(8px) saturate(160%);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
}

.begin-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.begin-prompt {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: clamp(2rem, 4.5vw, 3.6rem);
    line-height: 1.1;
    color: var(--cream-strong);
    display: flex;
    align-items: baseline;
    gap: 14px;
    flex-wrap: wrap;
}

.begin-cmd {
    color: var(--cream-strong);
}

.begin-caret {
    color: var(--accent-gold);
}

.begin-sub {
    font-family: var(--font-serif);
    font-weight: 400;
    font-style: italic;
    font-size: 1.15rem;
    color: var(--cream-mid);
}

.begin-meta {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

@media (max-width: 700px) {
    .begin-pane {
        width: 92vw;
        padding: 36px 24px;
    }
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
    padding: 40px 32px 56px;
    border-top: 1px solid rgba(244, 234, 213, 0.06);
    margin-top: 60px;
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

/* ============================================================
   Begin burst particles
   ============================================================ */

.burst-particle {
    position: fixed;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cream-strong);
    pointer-events: none;
    z-index: 9998;
    mix-blend-mode: screen;
    will-change: transform, opacity;
}

/* ============================================================
   Small utilities
   ============================================================ */

.serif { font-family: var(--font-serif); }

::selection {
    background: rgba(196, 160, 98, 0.45);
    color: var(--cream-strong);
}

/* Reduce motion respect */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
    .ink-circle { opacity: 0.18; }
}