/* =========================================================
   KANAN NURI — CV interactif — Feuille de style
   Thème : premium / glassmorphism sombre avec dégradés lumineux
   Structure : variables > base > layout > composants > anims > responsive
   ========================================================= */

:root {
  color-scheme: dark;

  /* Palette "premium glass" */
  --bg: #07070c;
  --bg-elev: #0d0d16;
  --card: rgba(255, 255, 255, 0.04);
  --card-hover: rgba(255, 255, 255, 0.075);
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.22);
  --text: #f4f4fa;
  --text-dim: #9c9cb5;

  --violet: #8b5cf6;
  --cyan: #22d3ee;
  --coral: #fb7185;
  --gold: #fbbf24;

  --gradient: linear-gradient(120deg, var(--violet), var(--cyan));
  --gradient-2: linear-gradient(120deg, var(--coral), var(--gold));
  --glow-violet: rgba(139, 92, 246, 0.45);
  --glow-cyan: rgba(34, 211, 238, 0.4);

  --radius: 20px;
  --radius-sm: 12px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --maxw: 1160px;

  --font-title: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--text);
}
p { margin: 0 0 1em; color: var(--text-dim); }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--violet); color: #fff; }

.container {
  width: min(92%, var(--maxw));
  margin: 0 auto;
}

.grad-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-title);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.45em 0.9em 0.45em 0.7em;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  margin-bottom: 1.1em;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 10px var(--glow-cyan);
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
}

.section-head {
  max-width: 640px;
  margin: 0 auto 3.2rem;
  text-align: center;
}
.section-head p:not(.eyebrow) { font-size: 1rem; }

section { position: relative; padding: 6rem 0; }
section:nth-of-type(even) { background: var(--bg-elev); }

/* ---------- Skip link (a11y) ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--gradient);
  color: #08080f;
  font-weight: 700;
  padding: 0.8em 1.2em;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 1000;
}
.skip-link:focus { left: 0; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: env(safe-area-inset-top, 0px);
  left: 0;
  right: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 3rem);
  background: rgba(7, 7, 12, 0.55);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease);
}
.navbar.is-scrolled {
  background: rgba(7, 7, 12, 0.85);
  border-bottom-color: var(--border);
}

.logo3d {
  width: 38px;
  height: 38px;
  perspective: 300px;
  flex-shrink: 0;
}
.logo3d__cube {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
}
.logo3d__face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.82rem;
  border-radius: 10px;
  background: var(--gradient);
  color: #07070c;
  box-shadow: 0 0 18px var(--glow-violet);
}
.logo3d__face--back,
.logo3d__face--right,
.logo3d__face--left,
.logo3d__face--top,
.logo3d__face--bottom { display: none; }

.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand .logo3d { display: block; }
.brand .logo3d .logo3d__face { color: #07070c; font-size: 0.82rem; }
.brand > span:not(.logo3d) {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 1.6rem);
}

.lang-switch {
  display: flex;
  gap: 0.3rem;
  flex-shrink: 0;
}
.lang-switch button {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-dim);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.4em 0.65em;
  border-radius: 999px;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}
.lang-switch button:hover,
.lang-switch button:focus-visible { border-color: var(--border-strong); color: var(--text); }
.lang-switch button.is-active {
  background: var(--gradient);
  color: #07070c;
  border-color: transparent;
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 2vw, 2rem);
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a {
  position: relative;
  padding: 0.3rem 0;
  color: var(--text-dim);
  transition: color 0.25s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient);
  transition: right 0.3s var(--ease);
}
.nav-links a:hover,
.nav-links a:focus-visible { color: var(--text); }
.nav-links a:hover::after,
.nav-links a:focus-visible::after { right: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 6rem;
  overflow: hidden;
}

.glow-orbs { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  will-change: transform;
}
.orb--1 {
  width: 420px; height: 420px;
  top: -120px; left: -80px;
  background: radial-gradient(circle, var(--violet), transparent 70%);
  animation: orbFloat1 16s var(--ease) infinite alternate;
}
.orb--2 {
  width: 380px; height: 380px;
  top: 10%; right: -100px;
  background: radial-gradient(circle, var(--cyan), transparent 70%);
  animation: orbFloat2 20s var(--ease) infinite alternate;
}
.orb--3 {
  width: 320px; height: 320px;
  bottom: -140px; left: 30%;
  background: radial-gradient(circle, var(--coral), transparent 70%);
  animation: orbFloat3 18s var(--ease) infinite alternate;
}
@keyframes orbFloat1 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(60px, 50px) scale(1.15); }
}
@keyframes orbFloat2 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(-50px, 40px) scale(0.9); }
}
@keyframes orbFloat3 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, -40px) scale(1.1); }
}

.hero .container { position: relative; z-index: 2; }
.hero-inner { max-width: 720px; }
.hero-name {
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1.04;
  background: linear-gradient(120deg, #fff 30%, var(--cyan) 75%, var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-role {
  font-family: var(--font-title);
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
  font-weight: 500;
  color: var(--text);
  margin-bottom: 1.1rem;
}
.hero-desc { font-size: 1.05rem; max-width: 560px; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.9rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.9em 1.7em;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.96rem;
  border: 1px solid transparent;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background-position 0.5s var(--ease), border-color 0.3s var(--ease);
}
.btn-primary {
  background: var(--gradient);
  background-size: 160% 160%;
  background-position: 0% 50%;
  color: #07070c;
  box-shadow: 0 10px 32px var(--glow-violet);
}
.btn-primary:hover, .btn-primary:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 16px 44px var(--glow-violet);
  background-position: 100% 50%;
}
.btn-ghost {
  background: var(--card);
  border-color: var(--border);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  background: var(--card-hover);
  border-color: var(--border-strong);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: clamp(1rem, 3vw, 1.6rem);
  margin-top: 3.2rem;
  flex-wrap: wrap;
}
.stat {
  flex: 1 1 150px;
  padding: 1.1em 1.2em;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.stat:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--card-hover);
}
.stat b {
  display: block;
  font-family: var(--font-title);
  font-size: 1.8rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.15em;
}
.stat span { font-size: 0.8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }

.scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 26px;
  height: 42px;
  border: 2px solid var(--border);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.scroll-cue span {
  width: 4px;
  height: 8px;
  border-radius: 3px;
  background: var(--cyan);
  animation: cueMove 1.8s var(--ease) infinite;
}
@keyframes cueMove {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { opacity: 0; }
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Skills (glass cards) ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.4rem;
}
.tilt-card__inner {
  position: relative;
  padding: 1.9rem 1.6rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 100%;
  backdrop-filter: blur(10px);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease), box-shadow 0.35s var(--ease);
  overflow: hidden;
}
.tilt-card__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  z-index: -1;
}
.tilt-card:hover .tilt-card__inner,
.tilt-card:focus-within .tilt-card__inner {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4), 0 0 0 1px var(--border-strong);
  background: var(--card-hover);
}
.tilt-icon {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  color: #07070c;
  margin-bottom: 1.1rem;
  box-shadow: 0 8px 20px var(--glow-violet);
}
.tilt-card h3 { font-size: 1.06rem; }
.tilt-card p { font-size: 0.92rem; margin: 0; }

.tilt-card--clickable { cursor: pointer; }
.tilt-card--clickable .tilt-card__inner { padding-bottom: 3.2rem; }
.tilt-card__more {
  position: absolute;
  left: 1.6rem;
  bottom: 1.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.85;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.tilt-card--clickable:hover .tilt-card__more,
.tilt-card--clickable:focus-visible .tilt-card__more {
  opacity: 1;
  transform: translateX(3px);
}

/* ---------- Skill detail panel (side drawer) ---------- */
.skill-panel-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 4, 8, 0.6);
  backdrop-filter: blur(4px);
  z-index: 900;
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.skill-panel-overlay[hidden] { display: none; }
.skill-panel-overlay.is-visible { opacity: 1; }

.skill-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(90vw, 400px);
  z-index: 901;
  padding: 2rem 1.8rem;
  background: var(--bg-elev);
  border-left: 1px solid var(--border);
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.4s var(--ease);
}
.skill-panel[hidden] { display: none; }
.skill-panel.is-visible { transform: translateX(0); }

.skill-panel__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.3rem;
}
.skill-panel__head h3 { margin: 0; font-size: 1.3rem; }
.skill-panel__close {
  flex-shrink: 0;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-dim);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}
.skill-panel__close:hover, .skill-panel__close:focus-visible {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--card-hover);
}
.skill-panel__subtitle { font-size: 0.9rem; margin-bottom: 1.6rem; }

.skill-panel__list { display: flex; flex-direction: column; gap: 0.9rem; }
.skill-panel__list li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}
.skill-panel__list li:hover {
  border-color: var(--border-strong);
  background: var(--card-hover);
  transform: translateX(-2px);
}
.skill-panel__name {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.95rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.skill-panel__note { font-size: 0.85rem; color: var(--text-dim); }

/* ---------- Timeline / flip cards ---------- */
.timeline { display: flex; flex-direction: column; gap: 1.7rem; }
.timeline-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 1.6rem;
  align-items: start;
}
.timeline-date {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.88rem;
  padding-top: 1.7rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.flip-card {
  perspective: 1600px;
  min-height: 190px;
}
.flip-card__scene {
  position: relative;
  width: 100%;
  min-height: 190px;
  transform-style: preserve-3d;
  transition: transform 0.7s var(--ease);
}
.flip-card.is-flipped .flip-card__scene { transform: rotateY(180deg); }
.flip-card__face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.7rem 1.9rem;
  background: var(--card);
  backdrop-filter: blur(10px);
}
.flip-card__face--front { position: relative; overflow: hidden; }
.flip-card__face--front::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
}
.flip-card__face--back {
  transform: rotateY(180deg);
  background: var(--bg-elev);
  overflow-y: auto;
}
.flip-card__face h3 { font-size: 1.12rem; margin-bottom: 0.2rem; }
.flip-card__org {
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.flip-card__hint {
  position: absolute;
  bottom: 1rem;
  right: 1.2rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.4em;
}
.flip-card__face--back ul { padding-left: 1.1rem; list-style: disc; }
.flip-card__face--back li { margin-bottom: 0.55rem; font-size: 0.92rem; color: var(--text-dim); }
.flip-card__face--back li::marker { color: var(--cyan); }
.flip-card:not(.is-flipped) .flip-card__face--back { pointer-events: none; }
.flip-card.is-flipped .flip-card__face--front { pointer-events: none; }

/* ---------- Projects / Education ---------- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
}
.edu-card {
  padding: 1.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.edu-card::before {
  content: "";
  position: absolute;
  top: -50%; right: -20%;
  width: 200px; height: 200px;
  background: var(--gradient);
  filter: blur(70px);
  opacity: 0.2;
  pointer-events: none;
}
.edu-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-strong);
  background: var(--card-hover);
}
.edu-card b {
  display: inline-block;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5em;
}

/* ---------- Languages (glow meter) ---------- */
.lang-list { display: flex; flex-direction: column; gap: 1.4rem; max-width: 640px; margin: 0 auto; }
.lang-row { display: grid; grid-template-columns: 140px 1fr 60px; align-items: center; gap: 1rem; }
.lang-name { font-weight: 600; }
.lang-level { font-size: 0.8rem; color: var(--text-dim); text-align: right; }
.lang-track {
  height: 8px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--border);
  overflow: hidden;
}
.lang-fill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: var(--gradient);
  transition: width 1.2s var(--ease);
  box-shadow: 0 0 16px var(--glow-cyan);
}

/* ---------- IT / tools ---------- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}
.tool-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
  padding: 1.2rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card);
  backdrop-filter: blur(10px);
  font-size: 0.82rem;
  font-weight: 500;
  text-align: center;
  transition: transform 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease);
}
.tool-chip:hover, .tool-chip:focus-visible {
  transform: translateY(-6px) scale(1.03);
  background: var(--card-hover);
  border-color: var(--border-strong);
}
.tool-chip svg { width: 24px; height: 24px; color: var(--cyan); }
.tool-chip small { font-size: 0.72rem; color: var(--text-dim); font-weight: 400; }
.section-head--spaced { margin-top: 4.5rem; }

/* ---------- Hero 3D ---------- */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2rem;
  align-items: center;
}
.hero-3d {
  position: relative;
  height: 540px;
}
.hero-3d canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: pan-y;
  outline: none;
}
.hero-3d canvas:active { cursor: grabbing; }
.hero-3d__hint {
  position: absolute;
  left: 0; right: 0; bottom: 4px;
  margin: 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-dim);
  pointer-events: none;
}
.hero-3d.is-fallback { display: none; }

/* ---------- Projects ---------- */
.proj-grid .edu-card h3 { margin-bottom: 0.25rem; font-size: 1.15rem; }
.proj-tags {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0 0 0.7rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Mini-game ---------- */
.game-wrap { margin-top: 3rem; }
.game-wrap[hidden] { display: none; }
.game-head { margin-bottom: 1rem; }
.game-head h3 { margin: 0; font-size: 1.45rem; }
.game {
  position: relative;
  height: 460px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 30% 30%, rgba(139, 92, 246, 0.18), transparent 60%),
    radial-gradient(ellipse at 75% 75%, rgba(34, 211, 238, 0.12), transparent 60%),
    var(--bg);
  overflow: hidden;
  transition: box-shadow 0.25s var(--ease);
}
.game canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  touch-action: manipulation;
}
.game--hit { box-shadow: inset 0 0 0 2px var(--coral), 0 0 36px rgba(251, 113, 133, 0.35); }
.game__hud {
  position: absolute;
  top: 14px; left: 18px; right: 18px;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  pointer-events: none;
}
.game__hud b {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--text);
}
.game__overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
  background: rgba(7, 7, 12, 0.5);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}
.game__overlay[hidden] { display: none; }
.game__rules { max-width: 440px; margin: 0; color: var(--text); font-size: 1rem; }
.game__result { margin: 0; font-size: 1.05rem; color: var(--text); }
.game__result[hidden] { display: none; }
.game__result b {
  font-family: var(--font-title);
  font-size: 1.8rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Contact ---------- */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.2rem;
  align-items: start;
}
.contact-info {
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.contact-info li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.15rem;
  font-size: 0.95rem;
}
.contact-info svg { width: 20px; height: 20px; color: var(--cyan); flex-shrink: 0; }
.copy-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-dim);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.35em 0.7em;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.copy-btn:hover { border-color: var(--border-strong); color: var(--text); }
.availability {
  margin-top: 1.5rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.28);
  font-size: 0.85rem;
  color: var(--cyan);
}

.contact-card { perspective: 1200px; }
.contact-form {
  padding: 2.2rem;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.contact-card:hover .contact-form,
.contact-card:focus-within .contact-form {
  border-color: var(--border-strong);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { margin-bottom: 1.15rem; }
.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0.45rem;
}
.field input,
.field textarea {
  width: 100%;
  padding: 0.75em 0.9em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  font-family: inherit;
  font-size: 0.94rem;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.18);
}
.field textarea { resize: vertical; min-height: 110px; }
.field small.error {
  display: none;
  color: var(--coral);
  font-size: 0.78rem;
  margin-top: 0.35rem;
}
.field.has-error input,
.field.has-error textarea { border-color: var(--coral); }
.field.has-error small.error { display: block; }

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
  min-height: 1.3em;
  color: var(--text-dim);
}
.form-status.ok { color: var(--cyan); }

.compose-box {
  display: none;
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-strong);
  background: rgba(255,255,255,0.03);
  font-size: 0.9rem;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-dim);
}
.compose-box.is-visible { display: block; }

/* ---------- Footer ---------- */
footer {
  padding: 2.4rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ---------- Focus visibility ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .contact-wrap { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; gap: 0.5rem; }
  .hero-3d { height: 360px; }
  .game { height: 400px; }
}

@media (max-width: 760px) {
  .nav-links {
    position: fixed;
    top: calc(68px + env(safe-area-inset-top, 0px));
    left: 0; right: 0;
    flex-direction: column;
    background: rgba(7, 7, 12, 0.97);
    backdrop-filter: blur(18px);
    padding: 1.4rem clamp(1rem, 6vw, 2rem);
    gap: 1rem;
    transform: translateY(-130%);
    opacity: 0;
    transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
    border-bottom: 1px solid var(--border);
  }
  .nav-links.is-open { transform: translateY(0); opacity: 1; }
  .nav-toggle { display: flex; }
  .timeline-item { grid-template-columns: 1fr; }
  .timeline-date { padding-top: 0; }
  .form-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}