/* =========================================================
   Rohit Kumar — Portfolio
   Theme tokens
   ========================================================= */
:root {
  --bg: #060709;
  --bg-soft: #0c0d11;
  --surface: rgba(255, 255, 255, 0.025);
  --surface-2: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text: #dce1e7;
  --text-dim: #8d96a1;
  --text-faint: #575e68;

  --accent: #8aa6c0;      /* cold steel blue */
  --accent-2: #9ba7b2;    /* gunmetal silver */
  --accent-3: #c2cbd4;    /* pale silver     */

  --grad: linear-gradient(120deg, #d3dbe2 0%, #94a5b4 52%, #5e6c79 110%);
  --grad-soft: linear-gradient(120deg, rgba(136, 166, 192, 0.15), rgba(150, 165, 180, 0.12));

  --glow: 0 0 40px rgba(136, 166, 192, 0.35);
  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1180px;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: auto;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: var(--accent); color: #fff; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #20242b; border-radius: 20px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #2d333c; }

/* =========================================================
   Background layers
   ========================================================= */
#bg-canvas {
  position: fixed; inset: 0; z-index: -3;
  width: 100%; height: 100%;
  background:
    radial-gradient(circle at 15% 15%, rgba(136, 166, 192, 0.18), transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(150, 165, 180, 0.12), transparent 42%),
    radial-gradient(circle at 50% 90%, rgba(96, 108, 122, 0.10), transparent 45%),
    var(--bg);
}
.grid-overlay {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 30%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 30%, transparent 90%);
}

/* Flying bats (Batman vibe) */
.bats { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.bat {
  position: absolute; left: 0; top: var(--top, 20%); will-change: transform;
  animation: batFly var(--dur, 26s) linear var(--delay, 0s) infinite;
}
.bat--rev { animation-name: batFlyRev; }
.bat__bob { display: block; animation: batBob var(--bob, 3.2s) ease-in-out infinite; }
.bat__svg {
  display: block; width: var(--size, 34px); height: auto;
  color: #2f363f; opacity: var(--op, 0.7);
  filter: drop-shadow(0 0 3px rgba(136, 166, 192, 0.28));
  animation: batFlap var(--flap, 0.34s) ease-in-out infinite;
  transform-origin: 50% 45%;
}
.bat--rev .bat__svg { scale: -1 1; }
@keyframes batFly { from { transform: translateX(-12vw); } to { transform: translateX(112vw); } }
@keyframes batFlyRev { from { transform: translateX(112vw); } to { transform: translateX(-12vw); } }
@keyframes batBob { 0%, 100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-26px) rotate(3deg); } }
@keyframes batFlap { 0%, 100% { transform: scaleX(1); } 50% { transform: scaleX(0.5); } }

.cursor-glow {
  position: fixed; top: 0; left: 0; z-index: -1; pointer-events: none;
  width: 480px; height: 480px; border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(136, 166, 192, 0.12), transparent 65%);
  transition: opacity 0.4s; opacity: 0;
}

/* =========================================================
   Scroll progress
   ========================================================= */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--grad); z-index: 100;
  box-shadow: 0 0 10px rgba(136, 166, 192, 0.6);
}

/* =========================================================
   Preloader
   ========================================================= */
.preloader {
  position: fixed; inset: 0; z-index: 999;
  display: grid; place-items: center;
  background: var(--bg);
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}
.preloader.is-done { opacity: 0; visibility: hidden; }
.preloader__inner { text-align: center; width: min(280px, 70vw); }
.preloader__art {
  font-family: var(--font-mono); font-size: 3rem; font-weight: 700;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: pulse 1.4s ease-in-out infinite;
}
.preloader__bar {
  height: 3px; background: var(--border); border-radius: 4px; overflow: hidden; margin: 18px 0 10px;
}
.preloader__bar span { display: block; height: 100%; width: 0%; background: var(--grad); transition: width 0.2s linear; }
.preloader__text {
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-dim);
  display: flex; justify-content: space-between;
}
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.94); } }

/* =========================================================
   Layout helpers
   ========================================================= */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 5vw, 48px); }
.section { position: relative; padding: clamp(70px, 11vw, 130px) 0; }
main { position: relative; z-index: 1; }

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

/* Section heads */
.section__head { display: flex; align-items: center; gap: 16px; margin-bottom: clamp(36px, 6vw, 64px); }
.section__index { font-family: var(--font-mono); color: var(--accent); font-size: 0.95rem; font-weight: 600; }
.section__title { font-family: var(--font-display); font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 700; letter-spacing: -0.02em; }
.section__line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--border-strong), transparent); }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 100px; font-weight: 600; font-size: 0.95rem;
  font-family: var(--font-display); letter-spacing: 0.01em;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s;
  will-change: transform; overflow: hidden;
}
.btn--sm { padding: 9px 16px; font-size: 0.85rem; }
.btn--lg { padding: 16px 34px; font-size: 1.05rem; }
.btn--primary { background: var(--grad); color: #0a0c10; font-weight: 700; box-shadow: 0 8px 30px rgba(136, 166, 192, 0.28); }
.btn--primary:hover { box-shadow: 0 12px 44px rgba(136, 166, 192, 0.55); transform: translateY(-3px); }
.btn--ghost { background: var(--surface); border: 1px solid var(--border-strong); color: var(--text); }
.btn--ghost:hover { background: var(--surface-2); border-color: var(--accent); transform: translateY(-3px); }

/* =========================================================
   Navbar
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 48px);
  transition: padding 0.3s var(--ease), background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  padding: 12px clamp(20px, 5vw, 48px);
  background: rgba(5, 6, 10, 0.72); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav__logo { font-family: var(--font-mono); font-weight: 700; font-size: 1.3rem; letter-spacing: -0.02em; }
.nav__logo-bracket { color: var(--accent); }
.nav__links { display: flex; gap: 6px; }
.nav__link {
  position: relative; font-family: var(--font-mono); font-size: 0.86rem; color: var(--text-dim);
  padding: 8px 14px; border-radius: 100px; transition: color 0.25s, background 0.25s;
}
.nav__link::before { content: counter(x); }
.nav__link[data-num]::before { content: attr(data-num) "."; color: var(--accent); margin-right: 5px; opacity: 0.7; font-size: 0.78rem; }
.nav__link:hover { color: var(--text); background: var(--surface); }
.nav__link.is-active { color: var(--text); background: var(--surface-2); }
.nav__right { display: flex; align-items: center; gap: 14px; }
.nav__resume span { color: var(--accent-2); }

.nav__burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav__burger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.3s; }
.nav__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   Hero
   ========================================================= */
.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding-top: 90px; }
.hero__grid {
  width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 5vw, 48px);
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center;
}
.hero__hello {
  display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-mono);
  font-size: 0.85rem; color: var(--text-dim); padding: 7px 15px; border-radius: 100px;
  background: var(--surface); border: 1px solid var(--border); margin-bottom: 22px;
}
.hero__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 0 rgba(150, 165, 180, 0.6); animation: ping 1.8s ease-in-out infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(150, 165, 180, 0.6); } 70%, 100% { box-shadow: 0 0 0 8px rgba(150, 165, 180, 0); } }

.hero__name { font-family: var(--font-display); font-size: clamp(2.8rem, 9vw, 5.2rem); line-height: 1.02; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 8px; }
.hero__role { font-family: var(--font-mono); font-size: clamp(1.05rem, 3.4vw, 1.7rem); font-weight: 500; color: var(--text-dim); margin-bottom: 22px; min-height: 1.6em; }
.hero__role-prefix { color: var(--accent-2); margin-right: 8px; }
#typewriter { color: var(--text); }
.cursor-blink { animation: blink 1s step-end infinite; color: var(--accent); font-weight: 700; }
@keyframes blink { 50% { opacity: 0; } }

.hero__desc { font-size: clamp(1rem, 2.4vw, 1.12rem); color: var(--text-dim); max-width: 540px; margin-bottom: 32px; }
.hero__desc strong { color: var(--text); font-weight: 600; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }

.hero__socials { display: flex; gap: 12px; }
.social {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-dim);
  transition: transform 0.3s var(--ease), color 0.3s, border-color 0.3s, background 0.3s;
}
.social:hover { color: #fff; border-color: var(--accent); background: var(--grad-soft); transform: translateY(-4px) rotate(-6deg); }

/* Hero visual / 3D parallax profile */
.hero__visual { display: grid; place-items: center; }
.profile3d {
  position: relative; width: clamp(230px, 30vw, 330px); aspect-ratio: 4 / 5;
  perspective: 1100px;
}
.profile3d__scene {
  position: absolute; inset: 0; transform-style: preserve-3d;
  transition: transform 0.5s var(--ease);
  animation: sceneFloat 6s ease-in-out infinite;
}
.profile3d.is-tilting .profile3d__scene { transition: transform 0.12s linear; animation: none; }
@keyframes sceneFloat {
  0%, 100% { transform: rotateX(0deg) rotateY(0deg) translateY(0); }
  50% { transform: rotateX(2deg) rotateY(-3deg) translateY(-10px); }
}

/* glowing blob behind */
.profile3d__glow {
  position: absolute; inset: 14% 10% 6% 10%; border-radius: 50% 50% 46% 46%;
  background: var(--grad); filter: blur(48px); opacity: 0.55;
  transform: translateZ(-80px); animation: morphGlow 7s ease-in-out infinite;
}
@keyframes morphGlow { 0%, 100% { opacity: 0.45; filter: blur(48px); } 50% { opacity: 0.7; filter: blur(60px); } }

/* dashed depth rings */
.profile3d__ring { position: absolute; border-radius: 26px; pointer-events: none; }
.profile3d__ring--1 { inset: 10% 4% 2% 4%; border: 1.5px dashed rgba(136, 166, 192, 0.35); transform: translateZ(-30px); }
.profile3d__ring--2 { inset: 16% 12% 8% 12%; border: 1.5px dotted rgba(150, 165, 180, 0.3); transform: translateZ(-10px); }

/* the card / frame the person steps out of */
.profile3d__frame {
  position: absolute; inset: 12% 6% 0 6%; border-radius: 24px;
  background: linear-gradient(160deg, rgba(136, 166, 192, 0.22), rgba(150, 165, 180, 0.10) 55%, rgba(5, 6, 10, 0.4));
  border: 1px solid var(--border-strong); overflow: hidden; transform: translateZ(0);
  box-shadow: inset 0 0 70px rgba(0, 0, 0, 0.35), 0 30px 60px rgba(0, 0, 0, 0.45);
}
.profile3d__frame-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse at 50% 40%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 40%, #000, transparent 75%);
}
.profile3d__frame-tag {
  position: absolute; bottom: 14px; left: 14px; font-family: var(--font-mono);
  font-size: 0.72rem; color: var(--accent-2); padding: 5px 11px; border-radius: 100px;
  background: rgba(5, 6, 10, 0.6); border: 1px solid var(--border); backdrop-filter: blur(4px);
}
.profile3d__frame-corner { position: absolute; width: 26px; height: 26px; }
.profile3d__frame-corner--tl { top: 12px; left: 12px; border-top: 2px solid var(--accent); border-left: 2px solid var(--accent); border-radius: 6px 0 0 0; }
.profile3d__frame-corner--br { bottom: 12px; right: 12px; border-bottom: 2px solid var(--accent-2); border-right: 2px solid var(--accent-2); border-radius: 0 0 6px 0; }

/* the cutout — pops out in front */
.profile3d__img {
  position: absolute; left: 50%; bottom: 0; width: 94%; height: auto;
  transform: translateX(-50%) translateZ(50px);
  filter: drop-shadow(0 18px 22px rgba(0, 0, 0, 0.6));
  pointer-events: none;
}

/* floating glass badges (deepest pop) */
.profile3d__badge {
  position: absolute; font-family: var(--font-mono); font-size: 0.78rem; font-weight: 500;
  padding: 8px 14px; border-radius: 100px; background: rgba(10, 12, 20, 0.82);
  backdrop-filter: blur(8px); border: 1px solid var(--border-strong); white-space: nowrap;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5); animation: float 4s ease-in-out infinite;
}
.profile3d__badge--1 { top: 12%; left: -10%; transform: translateZ(120px); animation-delay: 0s; }
.profile3d__badge--2 { top: 46%; right: -14%; transform: translateZ(150px); animation-delay: 1.2s; }
.profile3d__badge--3 { bottom: 12%; left: -6%; transform: translateZ(100px); animation-delay: 2.2s; }
@keyframes float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -12px; } }

/* sparkles */
.profile3d__spark { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 14px 2px var(--accent-2); }
.profile3d__spark--1 { top: 24%; right: 4%; transform: translateZ(90px); background: var(--accent-3); box-shadow: 0 0 14px 2px var(--accent-3); animation: float 5s ease-in-out infinite; }
.profile3d__spark--2 { bottom: 28%; left: 0%; transform: translateZ(130px); animation: float 4.4s ease-in-out infinite 0.6s; }

/* Hero scroll cue */
.hero__scroll {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-faint); letter-spacing: 0.2em; text-transform: uppercase;
}
.hero__scroll-mouse { width: 22px; height: 36px; border: 2px solid var(--border-strong); border-radius: 14px; display: flex; justify-content: center; padding-top: 6px; }
.hero__scroll-mouse span { width: 4px; height: 7px; border-radius: 4px; background: var(--accent); animation: scrollWheel 1.6s ease-in-out infinite; }
@keyframes scrollWheel { 0% { opacity: 0; transform: translateY(-4px); } 40% { opacity: 1; } 80%, 100% { opacity: 0; transform: translateY(8px); } }

/* =========================================================
   About
   ========================================================= */
.about__grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; align-items: start; }

.terminal {
  background: rgba(8, 10, 17, 0.85); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4); backdrop-filter: blur(6px);
}
.terminal__bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: rgba(255,255,255,0.03); border-bottom: 1px solid var(--border); }
.terminal__dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal__dot--r { background: #ff5f57; }
.terminal__dot--y { background: #febc2e; }
.terminal__dot--g { background: #28c840; }
.terminal__title { margin-left: 10px; font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-faint); }
.terminal__body { padding: 22px; font-family: var(--font-mono); font-size: 0.82rem; line-height: 1.85; overflow-x: auto; white-space: pre-wrap; word-break: break-word; }
.t-cmd { color: var(--accent-2); }
.t-out { color: var(--text-dim); }
.t-key { color: var(--accent); }
.t-str { color: #ffd479; }

.about__side { display: flex; flex-direction: column; gap: 24px; }
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 20px 18px; transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s;
}
.stat:hover { transform: translateY(-4px); border-color: var(--accent); background: var(--grad-soft); }
.stat__num { display: block; font-family: var(--font-display); font-size: 2.1rem; font-weight: 700; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.stat__label { font-size: 0.78rem; color: var(--text-faint); margin-top: 8px; display: block; }

.about__edu { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 22px; }
.about__edu-title { font-family: var(--font-mono); font-size: 0.82rem; color: var(--accent); margin-bottom: 14px; font-weight: 500; }
.about__list { display: flex; flex-direction: column; gap: 12px; }
.about__list li { display: flex; align-items: flex-start; gap: 11px; font-size: 0.9rem; color: var(--text-dim); }
.about__list strong { color: var(--text); }
.about__list-icon { flex-shrink: 0; }

/* =========================================================
   Skills
   ========================================================= */
.skills__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.skill-cat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s;
  position: relative; overflow: hidden;
}
.skill-cat::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity 0.35s;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), rgba(136,166,192,0.14), transparent 60%);
}
.skill-cat:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: 0 18px 50px rgba(0,0,0,0.4); }
.skill-cat:hover::before { opacity: 1; }
.skill-cat__head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.skill-cat__icon { font-size: 1.4rem; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 11px; background: var(--grad-soft); border: 1px solid var(--border); }
.skill-cat__title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; }
.skill-cat__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-dim);
  padding: 6px 12px; border-radius: 100px; background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  transition: color 0.25s, border-color 0.25s, transform 0.25s, background 0.25s;
}
.skill-tag:hover { color: var(--text); border-color: var(--accent); transform: translateY(-2px); background: var(--surface-2); }

/* =========================================================
   Experience timeline
   ========================================================= */
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--accent), var(--accent-2), transparent); }
.timeline__item { position: relative; margin-bottom: 28px; }
.timeline__marker { position: absolute; left: -30px; top: 26px; width: 16px; height: 16px; }
.timeline__marker span { position: absolute; inset: 0; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); }
.timeline__marker span::after { content: ""; position: absolute; inset: 3px; border-radius: 50%; background: var(--accent); animation: pulseDot 2s ease-in-out infinite; }
@keyframes pulseDot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.7); } }

.timeline__card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 26px; transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s;
}
.timeline__card:hover { border-color: var(--border-strong); box-shadow: 0 18px 50px rgba(0,0,0,0.4); }
.timeline__top { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.timeline__role { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; }
.timeline__company { color: var(--accent-2); font-weight: 500; font-size: 0.95rem; }
.timeline__loc { color: var(--text-faint); font-weight: 400; }
.timeline__date { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-dim); padding: 6px 13px; border-radius: 100px; background: var(--surface-2); border: 1px solid var(--border); white-space: nowrap; }
.timeline__points { display: flex; flex-direction: column; gap: 9px; margin-bottom: 16px; }
.timeline__points li { position: relative; padding-left: 20px; font-size: 0.9rem; color: var(--text-dim); }
.timeline__points li::before { content: "▹"; position: absolute; left: 0; color: var(--accent); }
.timeline__points strong { color: var(--text); font-weight: 600; }
.timeline__tags { display: flex; flex-wrap: wrap; gap: 7px; }
.timeline__tags span { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent-2); padding: 4px 10px; border-radius: 6px; background: rgba(150,165,180,0.08); border: 1px solid rgba(150,165,180,0.18); }

/* =========================================================
   Projects
   ========================================================= */
.projects__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; }
.project {
  position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column; overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s;
}
.project::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity 0.4s;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 50%), rgba(136,166,192,0.10), transparent 40%);
}
.project:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: 0 22px 60px rgba(0,0,0,0.45); }
.project:hover::after { opacity: 1; }
.project.is-featured { grid-column: span 2; background: linear-gradient(135deg, rgba(136,166,192,0.08), rgba(150,165,180,0.05)); }
.project__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.project__icon { font-size: 1.6rem; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 13px; background: var(--grad-soft); border: 1px solid var(--border); }
.project__tag { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent-2); padding: 5px 11px; border-radius: 100px; background: rgba(150,165,180,0.08); border: 1px solid rgba(150,165,180,0.2); }
.project__title { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; margin-bottom: 6px; }
.project__sub { font-size: 0.82rem; color: var(--accent); font-family: var(--font-mono); margin-bottom: 12px; }
.project__desc { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 18px; flex: 1; }
.project__stack { display: flex; flex-wrap: wrap; gap: 7px; }
.project__stack span { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); padding: 4px 10px; border-radius: 6px; background: rgba(255,255,255,0.04); border: 1px solid var(--border); }

/* =========================================================
   Contact
   ========================================================= */
.contact__inner { text-align: center; max-width: 680px; margin: 0 auto; }
.contact__headline { font-family: var(--font-display); font-size: clamp(1.8rem, 5.5vw, 3rem); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 16px; }
.contact__sub { color: var(--text-dim); font-size: 1.05rem; margin-bottom: 32px; }
.contact__links { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 36px; }
.contact__chip {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  padding: 14px 22px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border);
  transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s; min-width: 150px;
}
.contact__chip:hover { transform: translateY(-4px); border-color: var(--accent); background: var(--grad-soft); }
.contact__chip span { font-weight: 600; font-family: var(--font-display); }
.contact__chip small { color: var(--text-faint); font-family: var(--font-mono); font-size: 0.78rem; }

/* =========================================================
   Footer
   ========================================================= */
.footer { border-top: 1px solid var(--border); padding: 40px 0; position: relative; z-index: 1; }
.footer__inner { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; }
.footer__logo { font-family: var(--font-mono); font-weight: 700; font-size: 1.2rem; }
.footer__text { color: var(--text-dim); font-size: 0.9rem; }
.footer__meta { color: var(--text-faint); font-size: 0.8rem; font-family: var(--font-mono); }
.footer__heart { color: var(--accent-3); animation: heartbeat 1.4s ease-in-out infinite; display: inline-block; }
@keyframes heartbeat { 0%, 100% { transform: scale(1); } 25% { transform: scale(1.25); } 40% { transform: scale(1); } }

/* =========================================================
   Back to top
   ========================================================= */
.to-top {
  position: fixed; bottom: 26px; right: 26px; z-index: 80; width: 46px; height: 46px; border-radius: 12px;
  background: var(--grad); color: #fff; font-size: 1.2rem; display: grid; place-items: center;
  box-shadow: 0 8px 30px rgba(136,166,192,0.4); opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { transform: translateY(-4px); }

/* =========================================================
   Reveal animations
   ========================================================= */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }
.reveal[data-delay="5"] { transition-delay: 0.40s; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 50px; text-align: center; }
  .hero__hello, .hero__cta, .hero__socials { justify-content: center; }
  .hero__cta { justify-content: center; }
  .hero__visual { order: -1; }
  .hero__desc { margin-inline: auto; }
  .about__grid { grid-template-columns: 1fr; }
  .project.is-featured { grid-column: span 1; }
}

@media (max-width: 720px) {
  .nav__links {
    position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px); flex-direction: column; justify-content: center;
    gap: 14px; padding: 40px; background: rgba(8, 10, 17, 0.96); backdrop-filter: blur(18px);
    border-left: 1px solid var(--border); transform: translateX(105%); transition: transform 0.4s var(--ease);
  }
  .nav__links.is-open { transform: translateX(0); }
  .nav__link { font-size: 1.05rem; }
  .nav__burger { display: flex; }
  .nav__resume { display: none; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .profile3d__badge--2 { right: -4%; }
}

@media (max-width: 460px) {
  .stat-grid { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .profile3d__badge { font-size: 0.68rem; padding: 6px 11px; }
  .profile3d__badge--1 { left: -4%; }
  .profile3d__badge--2 { right: -2%; }
  .profile3d__badge--3 { left: -2%; }
}