@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap");

/* ==========================================================================
   Mohammed Al-Omari — Portfolio · Deep Signal Design System
   ========================================================================== */

:root {
  /* Colors */
  --bg:        #000000;
  --surface:   #0d0d1a;
  --card:      #12121f;
  --elevated:  #1a1a2e;
  --border:    #1e1e35;
  --border-hi: rgba(34, 211, 238, 0.25);

  /* Text */
  --text:  #f0f0ff;
  --muted: #8888aa;
  --dark:  #55557a;

  /* Accents */
  --cyan:        #22d3ee;
  --violet:      #a855f7;
  --cyan-glow:   rgba(34, 211, 238, 0.35);
  --violet-glow: rgba(168, 85, 247, 0.25);

  /* Gradients */
  --grad-primary: linear-gradient(135deg, var(--cyan), var(--violet));
  --grad-text:    linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);

  /* Typography */
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: "Space Grotesk", var(--sans);
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  /* Spacing */
  --r-sm: 6px;
  --r-md: 14px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* Motion */
  --fast:   0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --spring: 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--border) var(--bg);
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: none;
}

a { color: var(--text); text-decoration: none; transition: color var(--fast); }
a:hover { color: var(--cyan); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
strong { color: var(--text); font-weight: 600; }
button { cursor: none; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ==========================================================================
   Layout
   ========================================================================== */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 1.5rem; }
.container--sm { max-width: 780px; text-align: center; }
.section { padding: 7rem 0; position: relative; }
.divider { width: 100%; height: 1px; background: var(--border); }

/* ==========================================================================
   Custom Cursor
   ========================================================================== */
.cursor-dot {
  position: fixed;
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  box-shadow: 0 0 10px var(--cyan);
}

.cursor-ring {
  position: fixed;
  width: 36px; height: 36px;
  border: 1.5px solid rgba(34, 211, 238, 0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.35s var(--smooth), height 0.35s var(--smooth),
              border-color 0.2s, opacity 0.2s;
}

body:not(:hover) .cursor-dot,
body:not(:hover) .cursor-ring { opacity: 0; }

/* Expand cursor on hover */
body.cursor-hover .cursor-dot { width: 12px; height: 12px; }
body.cursor-hover .cursor-ring { width: 56px; height: 56px; border-color: var(--cyan); }

/* ==========================================================================
   Page Loader
   ========================================================================== */
.loader {
  position: fixed; inset: 0; z-index: 9998;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s;
}
.loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader__inner { text-align: center; }
.loader__logo {
  font-family: var(--mono);
  font-size: 3rem;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 1.5rem;
}
.loader__bar {
  width: 180px; height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}
.loader__fill {
  height: 100%;
  background: var(--grad-primary);
  border-radius: 2px;
  width: 0;
  animation: loaderFill 0.9s cubic-bezier(0.4, 0, 0.2, 1) forwards 0.1s;
}
@keyframes loaderFill { to { width: 100%; } }

/* ==========================================================================
   Background FX
   ========================================================================== */
.noise-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: 9997; opacity: 0.025;
  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='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

.mesh-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(34, 211, 238, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(168, 85, 247, 0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(10, 10, 30, 0.9) 0%, transparent 100%);
  animation: meshDrift 18s ease-in-out infinite alternate;
}
@keyframes meshDrift {
  0%   { background-position: 0% 0%; }
  100% { background-position: 3% 5%; }
}

/* ==========================================================================
   Utilities
   ========================================================================== */
.text-gradient {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-muted { color: var(--muted); }
.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--cyan); color: var(--bg);
  padding: 8px 16px; z-index: 10001;
  transition: top var(--fast); font-weight: 600;
  border-radius: 0 0 var(--r-sm) 0;
}
.skip-link:focus { top: 0; color: var(--bg); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.75rem 1.5rem; font-family: var(--mono); font-size: 0.85rem;
  font-weight: 500; border-radius: var(--r-sm); cursor: none;
  transition: all var(--fast); border: 1px solid transparent; white-space: nowrap;
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.04);
  opacity: 0; transition: opacity var(--fast);
}
.btn:hover::after { opacity: 1; }

.btn--primary {
  background: var(--grad-primary); color: #000; border: none; font-weight: 600;
}
.btn--primary:hover { filter: brightness(1.1); color: #000; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(34,211,238,0.3); }

.btn--outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn--outline:hover { background: var(--surface); border-color: var(--cyan); color: var(--cyan); }

.btn--glass {
  background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.1);
  backdrop-filter: blur(12px);
}
.btn--glass:hover { background: rgba(255,255,255,.1); border-color: var(--cyan); color: var(--cyan); }

.btn--game {
  background: rgba(168,85,247,.12); border-color: rgba(168,85,247,.4); color: var(--violet);
}
.btn--game:hover { background: rgba(168,85,247,.25); border-color: var(--violet); box-shadow: 0 0 20px rgba(168,85,247,0.25); }

.btn--sm  { padding: 0.45rem 0.9rem; font-size: 0.78rem; }
.btn--lg  { padding: 1rem 2.5rem; font-size: 1rem; }

/* ==========================================================================
   Tags
   ========================================================================== */
.tag {
  display: inline-block; padding: 0.22rem 0.7rem; font-family: var(--mono);
  font-size: 0.72rem; border-radius: 100px; background: var(--elevated);
  border: 1px solid var(--border); color: var(--muted);
}
.tag--cyan   { background: rgba(34,211,238,.1); border-color: rgba(34,211,238,.3); color: var(--cyan); }
.tag--violet { background: rgba(168,85,247,.1); border-color: rgba(168,85,247,.3); color: var(--violet); }

/* ==========================================================================
   Header & Nav
   ========================================================================== */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 500;
  background: rgba(4,4,10,.8); backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid var(--border);
  transition: background var(--smooth);
}
.site-header.scrolled { background: rgba(4,4,10,.95); }

.nav { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.nav__brand { display: flex; align-items: center; gap: 0.6rem; }
.nav__logo { font-family: var(--mono); font-weight: 700; font-size: 1.4rem; background: var(--grad-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav__logo-img {
  width: 28px; height: 28px; object-fit: contain;
  filter: invert(1) brightness(2) sepia(1) hue-rotate(165deg) saturate(3);
  transition: filter var(--fast), transform var(--spring);
}
.nav__brand:hover .nav__logo-img {
  filter: invert(1) brightness(2) sepia(1) hue-rotate(220deg) saturate(4);
  transform: rotate(8deg) scale(1.1);
}
.nav__name { font-weight: 600; font-size: 1rem; display: none; }
@media (min-width: 600px) { .nav__name { display: block; } }

.nav__menu { display: flex; align-items: center; gap: 1.75rem; }
.nav__menu > li > a {
  font-size: 0.88rem; font-weight: 500; color: var(--muted);
  transition: color var(--fast); position: relative; padding-bottom: 2px;
}
.nav__menu > li > a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 1px;
  background: var(--cyan); transition: width var(--smooth);
}
.nav__menu > li > a:hover { color: var(--text); }
.nav__menu > li > a:hover::after { width: 100%; }
.nav__menu > li > a.active { color: var(--cyan); }
.nav__menu > li > a.active::after { width: 100%; }

.nav__games-link { color: var(--violet) !important; }
.nav__games-link:hover { color: var(--violet) !important; }
.nav__games-link::after { background: var(--violet) !important; }

.nav__socials { display: flex; align-items: center; gap: 1rem; margin-left: 0.5rem; padding-left: 1rem; border-left: 1px solid var(--border); }
.nav__socials a { font-size: 1.1rem; color: var(--muted); display: inline-flex; transition: all var(--fast); }
.nav__socials a:hover { color: var(--cyan); transform: translateY(-2px); }

.nav__toggle { display: none; background: none; border: none; cursor: none; padding: 0.5rem; }
.hamburger { display: block; width: 22px; height: 2px; background: var(--text); position: relative; transition: all var(--fast); }
.hamburger::before, .hamburger::after { content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: var(--text); transition: all var(--fast); }
.hamburger::before { top: -6px; } .hamburger::after { top: 6px; }

@media (max-width: 900px) {
  .nav__toggle { display: block; }
  .nav__menu {
    position: fixed; top: 72px; left: 0; width: 100%;
    background: rgba(4,4,10,.97); backdrop-filter: blur(20px);
    flex-direction: column; padding: 2rem 0; gap: 1.25rem;
    border-bottom: 1px solid var(--border);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: clip-path var(--smooth);
  }
  .nav__menu.is-open { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
  .nav__socials { border-left: none; padding-left: 0; margin-left: 0; }
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header { margin-bottom: 3.5rem; }
.section__label {
  font-family: var(--mono); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--cyan); display: block; margin-bottom: 0.75rem;
}
.section__title { font-family: var(--display); font-size: clamp(1.9rem, 3.5vw, 3rem); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 0.75rem; }
.section__subtitle { font-size: 1.05rem; color: var(--muted); max-width: 560px; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { min-height: 100vh; display: flex; align-items: center; padding-top: 90px; overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1fr; gap: 4rem; align-items: center; }
@media (min-width: 1024px) { .hero__grid { grid-template-columns: 1.1fr 0.9fr; } }

.status-badge {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.35rem 1rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: 100px;
  font-family: var(--mono); font-size: 0.82rem; color: var(--muted); margin-bottom: 1.75rem;
}
.status-dot {
  width: 8px; height: 8px; background: var(--cyan); border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan); animation: pulse 2.5s infinite;
}
@keyframes pulse {
  0%   { transform: scale(.9); box-shadow: 0 0 0 0 rgba(34,211,238,.7); }
  70%  { transform: scale(1);  box-shadow: 0 0 0 7px rgba(34,211,238,0); }
  100% { transform: scale(.9); box-shadow: 0 0 0 0 rgba(34,211,238,0); }
}

.hero__title {
  font-size: clamp(2.6rem, 5.5vw, 4.5rem);
  font-weight: 900; line-height: 1.07; letter-spacing: -0.04em; margin-bottom: 1.5rem;
}
.hero__bio {
  font-size: clamp(1rem, 1.8vw, 1.15rem); color: var(--muted);
  max-width: 520px; margin-bottom: 2.25rem; line-height: 1.85;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* Code Window */
.code-window {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-md); overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.7), 0 0 0 1px var(--border);
  position: relative;
}
.code-window::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(135deg, rgba(34,211,238,.04) 0%, transparent 60%);
}
.code-window__header {
  background: var(--card); padding: 0.75rem 1.1rem;
  display: flex; align-items: center; gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot.r { background: #ff5f56; } .dot.y { background: #ffbd2e; } .dot.g { background: #27c93f; }
.filename { margin-left: auto; font-family: var(--mono); font-size: 0.76rem; color: var(--dark); }
.code-window__body { padding: 1.5rem; overflow-x: auto; }
.code-window__body pre { margin: 0; font-family: var(--mono); font-size: 0.82rem; line-height: 1.7; }

.kw   { color: #c792ea; } .fn { color: #82aaff; } .str { color: #c3e88d; }
.num  { color: #f78c6c; } .cm { color: #546e7a; font-style: italic; } .prop { color: #f07178; }

/* Floating badges */
.float-badge {
  position: absolute; font-family: var(--mono); font-size: 0.75rem; font-weight: 700;
  padding: 0.35rem 0.85rem; border-radius: 100px;
  background: var(--card); border: 1px solid var(--border-hi);
  color: var(--cyan); white-space: nowrap;
  animation: floatBadge 3s ease-in-out infinite alternate;
}
.float-badge--1 { top: -14px; right: 30px; animation-delay: 0s; }
.float-badge--2 { top: 40%; right: -20px; animation-delay: 0.7s; }
.float-badge--3 { bottom: 30px; right: 10px; animation-delay: 1.4s; }
.float-badge--4 { bottom: -14px; left: 20%; animation-delay: 0.35s; border-color: rgba(168,85,247,.3); color: var(--violet); }
@keyframes floatBadge {
  from { transform: translateY(0px); }
  to   { transform: translateY(-8px); }
}
.hero__visual { position: relative; }

/* Scroll Indicator */
.scroll-indicator {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.72rem; color: var(--dark); letter-spacing: 0.1em;
}
.scroll-indicator__line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  50.1%{ transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ==========================================================================
   3D Tilt Cards
   ========================================================================== */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.1s ease, box-shadow var(--smooth);
  will-change: transform;
}

/* ==========================================================================
   About
   ========================================================================== */
.about__grid { display: grid; grid-template-columns: 1fr; gap: 3.5rem; align-items: start; }
@media (min-width: 900px) { .about__grid { grid-template-columns: 1fr 1fr; } }

.about__text .section-header { margin-bottom: 1.75rem; }
.about__text p { color: var(--muted); line-height: 1.9; margin-bottom: 1.25rem; font-size: 1rem; }
.about__text p:last-child { margin-bottom: 0; }

.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 1.75rem 1.5rem; text-align: center;
  transition: border-color var(--fast), box-shadow var(--fast);
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 40%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0; transition: opacity var(--fast);
}
.stat-card:hover { border-color: var(--border-hi); box-shadow: 0 0 30px rgba(34,211,238,.08); }
.stat-card:hover::before { opacity: 1; }
.stat-card__num {
  font-family: var(--mono); font-size: 2.2rem; font-weight: 700;
  background: var(--grad-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  display: inline-block; margin-bottom: 0.25rem;
}
.stat-card__plus { font-family: var(--mono); font-size: 1.5rem; font-weight: 700; color: var(--cyan); }
.stat-card__inf  { font-size: 2.5rem; }
.stat-card__label { font-size: 0.82rem; color: var(--muted); display: block; }

/* ==========================================================================
   Expertise
   ========================================================================== */
.expertise__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 2rem 1.75rem;
  transition: border-color var(--fast), box-shadow var(--fast);
  position: relative; overflow: hidden;
}
.card__glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 50%), rgba(34,211,238,.06), transparent 40%);
  opacity: 0; transition: opacity 0.3s;
}
.card:hover .card__glow { opacity: 1; }
.card:hover { border-color: rgba(34,211,238,.15); box-shadow: 0 20px 40px -15px rgba(0,0,0,.5); }

.card__icon {
  width: 46px; height: 46px; background: var(--elevated);
  border: 1px solid var(--border); border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 1.25rem; transition: all var(--fast);
  color: var(--muted);
}
.card:hover .card__icon { background: rgba(34,211,238,.1); border-color: var(--cyan); color: var(--cyan); }
.card__title { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem; }
.card__desc  { font-size: 0.9rem; color: var(--muted); margin-bottom: 1.25rem; line-height: 1.7; }
.tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag-list li {
  font-family: var(--mono); font-size: 0.72rem; padding: 0.2rem 0.55rem;
  background: var(--elevated); border: 1px solid var(--border); border-radius: 4px; color: var(--muted);
}

/* ==========================================================================
   Timeline
   ========================================================================== */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 0; width: 1px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
}
.timeline-item { position: relative; margin-bottom: 3rem; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline__dot {
  position: absolute; left: -2rem; top: 4px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--cyan);
  box-shadow: 0 0 12px var(--cyan-glow);
  margin-left: -5px;
}
.timeline__period  { font-family: var(--mono); font-size: 0.78rem; color: var(--cyan); margin-bottom: 0.4rem; }
.timeline__role    { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.2rem; }
.timeline__company { font-size: 0.9rem; color: var(--muted); margin-bottom: 1rem; }
.timeline__bullets { display: flex; flex-direction: column; gap: 0.6rem; }
.timeline__bullets li { font-size: 0.93rem; color: var(--muted); padding-left: 1.1rem; position: relative; line-height: 1.7; }
.timeline__bullets li::before { content: "▸"; position: absolute; left: 0; color: var(--cyan); font-size: 0.8rem; top: 0.1rem; }

/* ==========================================================================
   Projects
   ========================================================================== */
/* ==========================================================================
   Project Cards — uniform collapsed + click-to-expand
   ========================================================================== */
.projects__list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  align-items: start;
}

.pc {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-md); overflow: hidden;
  display: flex; flex-direction: column;
  cursor: pointer; position: relative; outline: none;
  transition: border-color var(--fast), box-shadow var(--fast);
}
.pc:hover, .pc:focus-visible {
  border-color: rgba(34,211,238,.22);
  box-shadow: 0 16px 48px -12px rgba(0,0,0,.55);
}
.pc:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.pc.is-open { border-color: rgba(34,211,238,.35); }
.pc::before {
  content: ''; position: absolute; left: 0; top: 0; width: 3px; height: 0;
  background: var(--grad-primary); border-radius: 0 0 3px 0;
  transition: height var(--smooth); z-index: 1;
}
.pc:hover::before, .pc.is-open::before { height: 100%; }

/* Visual */
.pc__visual {
  position: relative; width: 100%; height: 155px;
  overflow: hidden; flex-shrink: 0;
}
.pc__img {
  width: 100%; height: 100%; object-fit: cover; object-position: top center;
  filter: brightness(0.8) saturate(0.75);
  transition: transform 0.6s cubic-bezier(0.16,1,0.3,1), filter 0.4s;
}
.pc:hover .pc__img { transform: scale(1.06); filter: brightness(0.95) saturate(1); }
.pc__visual-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, var(--surface) 100%);
  pointer-events: none;
}
.pc__visual--code {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--ca1,#22d3ee) 12%, var(--bg)),
    color-mix(in srgb, var(--ca2,#a855f7) 10%, var(--bg))
  );
  display: flex; align-items: center; justify-content: center;
}
.pc__code-art {
  font-family: var(--mono); font-size: 0.7rem; line-height: 1.7;
  color: rgba(255,255,255,0.45); background: none; border: none; margin: 0;
  padding: 0 1rem; user-select: none; text-shadow: 0 1px 8px rgba(0,0,0,0.6);
}
.ca-kw  { color: color-mix(in srgb, var(--ca1,#22d3ee) 90%, white); }
.ca-fn  { color: color-mix(in srgb, var(--ca2,#a855f7) 90%, white); }
.ca-ty  { color: #34d399; }
.ca-str { color: #fb923c; }
.pc__lang-badge {
  position: absolute; bottom: 0.55rem; right: 0.65rem;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(6px);
  border-radius: 100px; padding: 0.18rem 0.6rem;
  font-size: 0.7rem; border: 1px solid rgba(255,255,255,0.1);
}

/* Header */
.pc__header { padding: 1rem 1.2rem 0.75rem; flex-shrink: 0; }
.pc__meta { display: flex; align-items: center; gap: 0.45rem; flex-wrap: wrap; margin-bottom: 0.4rem; }
.pc__title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.3rem; line-height: 1.3; }
.pc__teaser {
  font-size: 0.82rem; color: var(--muted); line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Expand/collapse */
.pc__expand-wrapper {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows 0.42s cubic-bezier(0.16, 1, 0.3, 1);
}
.pc.is-open .pc__expand-wrapper { grid-template-rows: 1fr; }
.pc__expand-inner { overflow: hidden; }
.pc__desc  { font-size: 0.87rem; color: var(--muted); line-height: 1.75; padding: 0.4rem 1.2rem 0.8rem; }
.pc__stack { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0 1.2rem 0.8rem; }
.pc__actions { display: flex; gap: 0.55rem; flex-wrap: wrap; padding: 0 1.2rem 1.1rem; }

/* Toggle chevron */
.pc__toggle {
  display: flex; align-items: center; justify-content: center;
  width: 100%; height: 34px; flex-shrink: 0;
  background: rgba(255,255,255,0.02); border: none;
  border-top: 1px solid var(--border); color: var(--dark); cursor: pointer;
  transition: background var(--fast), color var(--fast);
}
.pc__toggle:hover { background: rgba(34,211,238,.05); color: var(--cyan); }
.pc__toggle i { transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); }
.pc.is-open .pc__toggle i { transform: rotate(180deg); }
.pc.is-open .pc__toggle { color: var(--cyan); }

/* Lang dot */
.lang-dot { display: inline-flex; align-items: center; gap: 0.4rem; font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }
.lang-dot::before { content: ""; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.lang-dot.ts::before { background: #3178c6; }
.lang-dot.cs::before { background: #a179dc; }
.lang-dot.js::before { background: #f7df1e; }

@media (max-width: 640px) {
  .projects__list { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Games CTA
   ========================================================================== */
.games-cta__box {
  background: var(--surface); border: 1px solid rgba(168,85,247,.25);
  border-radius: var(--r-xl); padding: 4rem 2rem; text-align: center;
  position: relative; overflow: hidden;
}
.games-cta__box::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 60%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
}
.games-cta__box::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(168,85,247,.07) 0%, transparent 70%);
}
.games-cta__icon { font-size: 3rem; margin-bottom: 1rem; display: block; }
.games-cta__title { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; margin-bottom: 1rem; }
.games-cta__desc  { font-size: 1.05rem; color: var(--muted); max-width: 500px; margin: 0 auto 2rem; line-height: 1.8; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 4.5rem 2rem; text-align: center;
  position: relative; overflow: hidden;
}
.contact-box::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 50%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}
.contact-box .section__label { margin-bottom: 1rem; }
.contact__title { font-size: clamp(1.9rem, 3.5vw, 2.8rem); font-weight: 800; margin-bottom: 1.25rem; }
.contact__desc  { font-size: 1rem; color: var(--muted); margin-bottom: 2.25rem; max-width: 480px; margin-left: auto; margin-right: auto; line-height: 1.8; }
.contact__links { display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { border-top: 1px solid var(--border); background: var(--bg); padding: 3.5rem 0 2rem; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1.5rem; margin-bottom: 2.5rem; }
.footer__brand .nav__logo { font-size: 1.8rem; display: block; margin-bottom: 0.4rem; }
.footer__brand .nav__logo-img { width: 36px; height: 36px; margin-bottom: 0.5rem; }
.footer__brand p { font-size: 0.9rem; font-weight: 500; }
.footer__socials { display: flex; gap: 0.75rem; }
.footer__socials a {
  display: flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 1.1rem; transition: all var(--fast); color: var(--muted);
}
.footer__socials a:hover { background: var(--cyan); color: var(--bg); border-color: var(--cyan); transform: translateY(-3px); }
.footer__bottom { text-align: center; padding-top: 1.75rem; border-top: 1px solid var(--border); font-size: 0.82rem; color: var(--dark); }

/* ==========================================================================
   GSAP animation initial states
   ========================================================================== */
[data-gsap="fade-up"] { opacity: 0; transform: translateY(40px); }
[data-gsap="fade-in"] { opacity: 0; }
.hero__playground-link { opacity: 0; transform: translateY(24px); }
[data-gsap="words"] span { display: inline-block; overflow: hidden; }

/* ==========================================================================
   Magnetic button JS hook
   ========================================================================== */
.magnetic { transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); }

/* ==========================================================================
   Tech Ticker — infinite scrolling tech badge strip
   ========================================================================== */
.tech-ticker-section { overflow: hidden; padding-bottom: 1rem; }

.section__subtitle-link {
  color: var(--cyan); text-decoration: none;
  transition: color var(--fast), text-shadow var(--fast);
}
.section__subtitle-link:hover { color: var(--violet); text-shadow: 0 0 10px currentColor; }

.ticker-wrapper {
  position: relative; overflow: hidden;
  margin-top: 3rem;
  /* Pause on hover */
}
.ticker-wrapper:hover .ticker-track { animation-play-state: paused; }

/* Fade masks on left and right edges */
.ticker-fade {
  position: absolute; top: 0; bottom: 0; width: 10%; z-index: 2; pointer-events: none;
}
.ticker-fade--left  { left: 0;  background: linear-gradient(to right,  var(--bg), transparent); }
.ticker-fade--right { right: 0; background: linear-gradient(to left, var(--bg), transparent); }

.ticker-row {
  display: flex; width: 100%; overflow: hidden;
  margin-bottom: 0.85rem;
}

/* Scrolling track */
.ticker-track {
  display: flex; align-items: center; gap: 0.6rem;
  width: max-content; white-space: nowrap;
  animation: tickerLeft 40s linear infinite;
}
.ticker-track--reverse {
  animation: tickerRight 38s linear infinite;
}

@keyframes tickerLeft  { from { transform: translateX(0); }  to { transform: translateX(-50%); } }
@keyframes tickerRight { from { transform: translateX(-50%); } to { transform: translateX(0); } }

/* Individual badge */
.tech-badge {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.42rem 0.9rem;
  border-radius: 100px;
  font-family: var(--mono); font-size: 0.78rem; font-weight: 600;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--muted); white-space: nowrap;
  cursor: default; flex-shrink: 0;
  transition: background var(--fast), border-color var(--fast), color var(--fast),
              transform var(--fast), box-shadow var(--fast);
}
.tech-badge:hover {
  transform: translateY(-3px) scale(1.06);
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
  z-index: 3;
}

/* Color variants */
.tech-badge--cyan   { border-color: rgba(34,211,238,.25);  color: #22d3ee; }
.tech-badge--blue   { border-color: rgba(99,102,241,.25);  color: #818cf8; }
.tech-badge--violet { border-color: rgba(168,85,247,.25);  color: #c084fc; }
.tech-badge--green  { border-color: rgba(52,211,153,.25);  color: #34d399; }
.tech-badge--red    { border-color: rgba(248,113,113,.25); color: #f87171; }
.tech-badge--yellow { border-color: rgba(250,204,21,.25);  color: #facc15; }
.tech-badge--orange { border-color: rgba(251,146,60,.25);  color: #fb923c; }
.tech-badge--muted  { border-color: var(--border);         color: var(--muted); }

.tech-badge--cyan:hover   { background: rgba(34,211,238,.06);  border-color: rgba(34,211,238,.5);  box-shadow: 0 6px 20px rgba(34,211,238,.15); }
.tech-badge--blue:hover   { background: rgba(99,102,241,.06);  border-color: rgba(99,102,241,.5);  box-shadow: 0 6px 20px rgba(99,102,241,.15); }
.tech-badge--violet:hover { background: rgba(168,85,247,.06);  border-color: rgba(168,85,247,.5);  box-shadow: 0 6px 20px rgba(168,85,247,.15); }
.tech-badge--green:hover  { background: rgba(52,211,153,.06);  border-color: rgba(52,211,153,.5);  box-shadow: 0 6px 20px rgba(52,211,153,.15); }
.tech-badge--red:hover    { background: rgba(248,113,113,.06); border-color: rgba(248,113,113,.5); box-shadow: 0 6px 20px rgba(248,113,113,.15); }
.tech-badge--yellow:hover { background: rgba(250,204,21,.06);  border-color: rgba(250,204,21,.5);  box-shadow: 0 6px 20px rgba(250,204,21,.15); }
.tech-badge--orange:hover { background: rgba(251,146,60,.06);  border-color: rgba(251,146,60,.5);  box-shadow: 0 6px 20px rgba(251,146,60,.15); }
.tech-badge--muted:hover  { background: rgba(136,136,170,.06); border-color: rgba(136,136,170,.4); }

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  .ticker-track, .ticker-track--reverse { animation: none; }
}

/* ==========================================================================
   Hero Identity (name badge — SEO & branding)
   ========================================================================== */
.hero__identity {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  margin-bottom: 0.6rem;
  opacity: 0; transform: translateY(20px);
}
.hero__identity-name {
  font-family: var(--mono); font-size: 0.9rem; font-weight: 700;
  color: var(--cyan); letter-spacing: 0.04em;
}
.hero__identity-aka {
  font-family: var(--mono); font-size: 0.78rem; color: var(--dark);
  letter-spacing: 0.03em;
}

/* ==========================================================================
   Contact Address Microformat
   ========================================================================== */
.contact__address {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1.5rem;
  font-style: normal;
  background: rgba(34,211,238,0.03);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.9rem 1.25rem;
  margin-bottom: 1.75rem;
}
.contact__address-name {
  font-weight: 700; color: var(--text); font-size: 0.95rem;
}
.contact__address-role {
  color: var(--muted); font-size: 0.85rem;
}
.contact__address-role::before { content: '· '; color: var(--dark); }
.contact__address-location {
  font-size: 0.85rem; color: var(--muted); display: flex; align-items: center; gap: 0.4rem;
}
.contact__address-location i { color: var(--cyan); font-size: 0.75rem; }
.contact__address-email {
  font-family: var(--mono); font-size: 0.82rem; color: var(--cyan);
  transition: color var(--fast), text-shadow var(--fast);
}
.contact__address-email:hover { color: var(--violet); text-shadow: 0 0 12px currentColor; }

/* ==========================================================================
   Scroll Progress Bar
   ========================================================================== */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 9996;
  background: var(--grad-primary);
  transform: scaleX(0); transform-origin: left;
  box-shadow: 0 0 10px var(--cyan);
}

/* ==========================================================================
   Back to Top Button
   ========================================================================== */
.back-to-top {
  position: fixed; bottom: 2rem; left: 2rem; right: auto; z-index: 500;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--muted); display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; cursor: none;
  transition: all var(--smooth);
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
}
.back-to-top svg { width: 18px; height: 18px; }
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover {
  background: var(--grad-primary); color: #000; border-color: transparent;
  transform: translateY(-4px); box-shadow: 0 8px 24px rgba(34,211,238,0.3);
}

/* ==========================================================================
   Ripple Effect
   ========================================================================== */
.ripple {
  position: absolute; border-radius: 50%; pointer-events: none;
  width: 10px; height: 10px; margin: -5px;
  background: rgba(255,255,255,0.25);
  animation: rippleAnim 0.55s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
@keyframes rippleAnim {
  from { transform: scale(0); opacity: 1; }
  to   { transform: scale(22); opacity: 0; }
}

/* ==========================================================================
   Tag Tooltip
   ========================================================================== */
.tag-tooltip {
  position: fixed; z-index: 9995; pointer-events: none;
  background: var(--elevated); border: 1px solid var(--border-hi);
  color: var(--text); font-family: var(--mono); font-size: 0.72rem;
  padding: 0.3rem 0.75rem; border-radius: var(--r-sm);
  white-space: nowrap; opacity: 0;
  transition: opacity 0.15s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.tag-tooltip.visible { opacity: 1; }

/* ==========================================================================
   Code Cursor Blink
   ========================================================================== */
.code-cursor {
  color: var(--cyan); animation: codeBlink 1.1s step-end infinite;
  font-weight: 400; margin-left: 1px;
}
@keyframes codeBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ==========================================================================
   Section Label Glitch
   ========================================================================== */
@keyframes glitchAnim {
  0%, 100% { clip-path: inset(0 0 100% 0); transform: none; }
  10%  { clip-path: inset(10% 0 60% 0); transform: translate(-2px, 1px); }
  20%  { clip-path: inset(50% 0 20% 0); transform: translate(2px, -1px); }
  30%  { clip-path: inset(0 0 0 0); transform: none; }
  40%  { clip-path: inset(30% 0 40% 0); transform: translate(-1px, 2px); }
  50%  { clip-path: inset(0 0 0 0); transform: none; }
}
.section__label.glitch {
  animation: glitchAnim 0.35s steps(1) forwards;
}
.section__label { display: inline-block; }

/* ==========================================================================
   Project Card Shimmer
   ========================================================================== */
.pc.shimmer::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(
    105deg,
    transparent 20%,
    rgba(255,255,255,0.04) 50%,
    transparent 80%
  );
  animation: shimmerSlide 0.6s ease forwards;
  pointer-events: none;
}
@keyframes shimmerSlide {
  from { left: -100%; }
  to   { left: 160%; }
}

/* ==========================================================================
   Contact Box Mouse Glow
   ========================================================================== */
.contact-box {
  --gx: 50%; --gy: 50%;
}
.contact-box::after {
  content: '';
  position: absolute; inset: 0; pointer-events: none; border-radius: var(--r-xl);
  background: radial-gradient(400px circle at var(--gx) var(--gy), rgba(34,211,238,0.05), transparent 60%);
  transition: opacity 0.3s;
}

/* ==========================================================================
   Cursor State Variations
   ========================================================================== */
body[data-cursor-state="text"] .cursor-dot { width: 3px; height: 20px; border-radius: 2px; }
body[data-cursor-state="code"] .cursor-dot { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
body[data-cursor-state="card"] .cursor-ring { border-color: rgba(168,85,247,0.6); }

/* ==========================================================================
   Tag List Interactive
   ========================================================================== */
.tag-list li {
  cursor: default;
  transition: background var(--fast), border-color var(--fast), color var(--fast), transform var(--fast);
}
.tag-list li:hover {
  background: rgba(34,211,238,0.08);
  border-color: rgba(34,211,238,0.3);
  color: var(--cyan);
  transform: translateY(-2px);
}

/* ==========================================================================
   Timeline dot glow
   ========================================================================== */
.timeline__dot { transition: transform var(--fast), box-shadow var(--fast); }

/* ==========================================================================
   Footer social hover
   ========================================================================== */
.footer__socials a { transition: background var(--fast), color var(--fast), border-color var(--fast), transform var(--fast), box-shadow var(--fast); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 480px) {
  .section { padding: 5rem 0; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .contact__links { flex-direction: column; align-items: stretch; }
  .contact__links .btn { justify-content: center; }
  .back-to-top { bottom: 1rem; left: 1rem; right: auto; }
}

/* ==========================================================================
   Tenbin chapters · WebGL · Mongols exhibition
   ========================================================================== */
#webgl-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
}
#webgl-canvas.webgl-canvas--fallback { display: none; }

.loader__status {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 1rem;
  min-height: 1.2em;
}

.chapter {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 0;
  content-visibility: auto;
  contain-intrinsic-size: auto 100vh;
}
.chapter__inner { width: 100%; }

.hero__playground-link {
  display: inline-block;
  margin-top: 1.25rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
}
.hero__playground-link:hover { color: var(--cyan); }

.chapter--ship-fast .chapter__title {
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 14ch;
}
.chapter__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.82rem;
}
.compare-table th,
.compare-table td {
  padding: 1rem 0;
  border-bottom: 1px dotted rgba(255,255,255,0.12);
  text-align: left;
}
.compare-table th { color: var(--muted); font-weight: 500; font-size: 0.7rem; text-transform: uppercase; }
.compare-table td:first-child { color: var(--cyan); }
.compare-table td:last-child { color: var(--muted); }

/* ═══════════════════════════════════════════════════════════════════════════
   Projects exhibition — Mongols-style immersive slides
   ═══════════════════════════════════════════════════════════════════════════ */
.projects-exhibition {
  position: relative;
  z-index: 2;
  padding: 0;
  overflow: clip;
  cursor: auto;
}

/* Hide custom cursor inside exhibition (stops ring over titles) */
body.cursor-in-projects .cursor-dot,
body.cursor-in-projects .cursor-ring {
  opacity: 0 !important;
}

body.in-projects .back-to-top {
  opacity: 0 !important;
  pointer-events: none !important;
}

/* Intro gate */
.exhibit-intro {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 7rem 0 5rem;
  position: relative;
}
.exhibit-intro__label {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 1.25rem;
}
.exhibit-intro__title {
  font-family: var(--display);
  font-size: clamp(3.5rem, 11vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin: 0;
}
.exhibit-intro__scroll {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-top: 2.5rem;
  animation: exhibitScrollPulse 2.2s ease-in-out infinite;
}
.exhibit-intro--passed .exhibit-intro__scroll { opacity: 0.35; animation: none; }
@keyframes exhibitScrollPulse {
  0%, 100% { opacity: 1; transform: translateY(0); }
  50% { opacity: 0.45; transform: translateY(8px); }
}

.exhibit-progress {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  z-index: 200;
  pointer-events: none;
  mix-blend-mode: difference;
}
.exhibit-progress span { color: var(--cyan); font-weight: 600; }

/* Each pinned slide */
.exhibit-slide {
  position: relative;
  content-visibility: auto;
  contain-intrinsic-size: auto 100vh;
}

.exhibit-slide__viewport {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(5.5rem, 11vh, 8rem) clamp(1.25rem, 5vw, 3rem);
  padding-left: clamp(1.25rem, 5vw, 4.5rem);
  overflow: hidden;
  isolation: isolate;
}

.exhibit-slide__fade {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(105deg,
      rgba(0, 0, 0, 0.97) 0%,
      rgba(0, 0, 0, 0.88) 38%,
      rgba(0, 0, 0, 0.45) 62%,
      rgba(0, 0, 0, 0.15) 100%);
}

.exhibit-slide__count {
  position: absolute;
  top: clamp(5rem, 10vh, 7rem);
  left: clamp(1.25rem, 5vw, 4.5rem);
  z-index: 4;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.exhibit-slide__content {
  position: relative;
  z-index: 4;
  max-width: 34rem;
  align-self: center;
}

.exhibit-slide__repo {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.exhibit-slide__title {
  font-family: var(--display);
  font-size: clamp(2.35rem, 5.8vw, 4.75rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 0 0 1rem;
  text-wrap: balance;
}

.exhibit-slide__accent {
  font-style: italic;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.exhibit-slide__hook {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  line-height: 1.65;
  color: rgba(240, 240, 255, 0.72);
  max-width: 38ch;
  margin-bottom: 0.25rem;
}

.exhibit-slide__more {
  margin-top: 1.75rem;
  display: inline-block;
  background: none;
  border: none;
  padding: 0 0 0.35rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  transition: color var(--fast), border-color var(--fast), letter-spacing var(--fast);
}
.exhibit-slide__more:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  letter-spacing: 0.22em;
}

/* Artwork panel — borderless, bleeds right like Mongols illustrations */
.exhibit-slide__art {
  position: relative;
  z-index: 1;
  align-self: center;
  justify-self: end;
  width: 100%;
  max-width: 640px;
  height: min(72vh, 580px);
  min-height: 320px;
  overflow: visible;
  border: none;
  border-radius: 0;
  box-shadow: none;
  -webkit-mask-image: linear-gradient(to left, #000 55%, transparent 100%);
  mask-image: linear-gradient(to left, #000 55%, transparent 100%);
}

.exhibit-slide__art--code {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding-left: 1.5rem;
  background:
    radial-gradient(ellipse 90% 80% at 70% 50%,
      color-mix(in srgb, var(--ca1, #22d3ee) 18%, transparent),
      transparent 70%);
}

.exhibit-slide__code {
  font-family: var(--mono);
  font-size: clamp(0.7rem, 1.05vw, 0.9rem);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
  padding: 0;
  margin: 0;
  user-select: none;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.8);
}

.exhibit-slide__art--image .exhibit-slide__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  filter: brightness(0.85) saturate(0.9);
  transform: scale(1.02);
}

.exhibit-slide__credit {
  position: absolute;
  bottom: 1rem;
  left: 1.25rem;
  z-index: 2;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

/* Outro */
.exhibit-outro {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1.5rem 8rem;
  position: relative;
  z-index: 3;
}
.exhibit-outro__quote {
  font-family: var(--display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.2;
  max-width: 18ch;
  letter-spacing: -0.03em;
}
.exhibit-outro__cite {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  margin: 1rem 0 0;
  letter-spacing: 0.08em;
}

/* READ MORE dialog */
.exhibit-dialog {
  margin: 0;
  padding: 0;
  border: none;
  max-width: none;
  max-height: none;
  width: 100%;
  height: 100%;
  background: transparent;
}
.exhibit-dialog::backdrop {
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(12px);
}
.exhibit-dialog__panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-height: min(85vh, 720px);
  overflow-y: auto;
  padding: 2.5rem clamp(1.25rem, 5vw, 3rem) 3rem;
  background: linear-gradient(180deg, #12121f 0%, #08080f 100%);
  border-top: 1px solid var(--border-hi);
  border-radius: var(--r-xl) var(--r-xl) 0 0;
  box-shadow: 0 -24px 80px rgba(0, 0, 0, 0.6);
}
.exhibit-dialog__close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--fast), color var(--fast);
}
.exhibit-dialog__close:hover { border-color: var(--cyan); color: var(--cyan); }
.exhibit-dialog__title {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.25rem;
}
.exhibit-dialog__body p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--muted);
  margin-bottom: 1.5rem;
  max-width: 62ch;
}
.exhibit-detail__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.exhibit-detail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

body.exhibit-dialog-open { overflow: hidden; }

.projects-exhibition--no-pin .exhibit-slide__viewport {
  min-height: auto;
  padding: 5rem 1.25rem;
}
.projects-exhibition--no-pin .exhibit-slide__art {
  position: relative;
  right: auto;
  top: auto;
  transform: none;
  width: 100%;
  height: auto;
  min-height: 240px;
  margin-top: 2.5rem;
}
.projects-exhibition--no-pin .exhibit-slide__fade {
  background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, transparent 40%);
}
.projects-exhibition--no-pin .exhibit-slide__content {
  width: 100%;
  max-width: none;
}

@media (max-width: 900px) {
  .exhibit-slide__viewport {
    grid-template-columns: 1fr;
    padding-top: 6rem;
    padding-bottom: 4rem;
  }
  .exhibit-slide__content {
    max-width: none;
  }
  .exhibit-slide__art {
    justify-self: stretch;
    max-width: none;
    height: min(38vh, 300px);
    min-height: 220px;
    -webkit-mask-image: linear-gradient(to bottom, #000 70%, transparent 100%);
    mask-image: linear-gradient(to bottom, #000 70%, transparent 100%);
  }
  .exhibit-slide__fade {
    background: linear-gradient(180deg,
      rgba(0, 0, 0, 0.92) 0%,
      rgba(0, 0, 0, 0.75) 45%,
      rgba(0, 0, 0, 0.4) 100%);
  }
  .exhibit-intro__title { font-size: clamp(2.5rem, 14vw, 4rem); }
  body.in-projects .back-to-top { opacity: 1 !important; pointer-events: auto !important; }
}

.chapter--playground .playground__title {
  font-family: var(--display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.chapter--playground .playground__title em { color: var(--violet); font-style: italic; }
.playground__box {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 4rem 2rem;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: rgba(18,18,31,0.6);
}

.noise-bg { opacity: 0.04; z-index: 9996; }

@media (max-width: 900px) {
  .chapter__grid { grid-template-columns: 1fr; }
  .exhibit-progress { bottom: 1rem; right: 1rem; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .scroll-indicator { display: none; }
  .ticker-track { animation-play-state: paused !important; }
  .exhibit-gate__cta { animation: none; }
}