/* ============================================================
   Haider Anees — Portfolio
   Dark · modern · technical
   ============================================================ */

:root {
  --bg:            #0a0e14;
  --bg-2:          #0d121b;
  --surface:       #111826;
  --surface-2:     #151d2c;
  --border:        rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text:          #e6edf6;
  --text-dim:      #9fb0c3;
  --text-mute:     #6b7c93;

  --accent:        #38e1c4;   /* teal */
  --accent-2:      #6c8cff;   /* indigo */
  --accent-3:      #b78bff;   /* violet */
  --grad:          linear-gradient(120deg, #38e1c4 0%, #6c8cff 50%, #b78bff 100%);

  --radius:        16px;
  --radius-sm:     10px;
  --maxw:          1340px;
  --shadow:        0 24px 60px -20px rgba(0, 0, 0, 0.7);

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

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

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

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

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

/* ---------- Background decor ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -3;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  opacity: 0.5;
}
.bg-glow {
  position: fixed; z-index: -2; border-radius: 50%;
  filter: blur(120px); opacity: 0.28; pointer-events: none;
}
.bg-glow--1 { top: -160px; left: -120px; width: 520px; height: 520px; background: var(--accent-2); }
.bg-glow--2 { top: 200px; right: -160px; width: 480px; height: 480px; background: var(--accent-3); opacity: 0.18; }

.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--grad); z-index: 100; transition: width 0.1s linear;
}

/* ---------- Navbar ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 14, 20, 0.6);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--border); background: rgba(10, 14, 20, 0.85); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav__brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.nav__brand-mark {
  height: 54px; width: auto; display: block;
  transition: transform 0.25s;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.5));
}
.nav__brand:hover .nav__brand-mark { transform: translateY(-2px) rotate(-2deg); }
.nav__brand-name { font-family: var(--font-display); letter-spacing: -0.01em; }
.nav__links { display: flex; gap: 24px; }
.nav__links a { color: var(--text-dim); font-size: 14.5px; font-weight: 500; transition: color 0.2s; position: relative; }
.nav__links a:hover { color: var(--text); }
.nav__links a::after {
  content: ''; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--grad); transition: width 0.25s;
}
.nav__links a:hover::after { width: 100%; }
.nav__actions { display: flex; align-items: center; gap: 14px; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav__toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
.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); }
.nav__mobile {
  display: none; flex-direction: column; padding: 8px 24px 20px; gap: 4px;
  background: rgba(10, 14, 20, 0.97); border-bottom: 1px solid var(--border);
}
.nav__mobile.open { display: flex; }
.nav__mobile a { padding: 12px 4px; color: var(--text-dim); border-bottom: 1px solid var(--border); font-weight: 500; }
.nav__mobile a:last-child { color: var(--accent); border-bottom: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px; justify-content: center;
  font-weight: 600; font-size: 15px; padding: 12px 22px; border-radius: 11px;
  border: 1px solid transparent; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  font-family: var(--font); white-space: nowrap;
}
.btn--sm { padding: 8px 16px; font-size: 13.5px; }
.btn--lg { padding: 15px 26px; font-size: 15.5px; }
.btn--primary { background: var(--grad); color: #041014; box-shadow: 0 10px 30px -10px rgba(56, 225, 196, 0.6); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(108, 140, 255, 0.65); }
.btn--ghost { background: rgba(255,255,255,0.03); color: var(--text); border-color: var(--border-strong); }
.btn--ghost:hover { background: rgba(255,255,255,0.07); transform: translateY(-2px); border-color: var(--accent); }

/* ---------- Hero ---------- */
.hero { padding: 70px 0 40px; }
.hero__inner {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center;
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-mono);
  font-size: 13px; color: var(--text-dim); background: rgba(56, 225, 196, 0.08);
  border: 1px solid rgba(56, 225, 196, 0.22); padding: 6px 14px; border-radius: 100px; margin-bottom: 22px;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(56,225,196,0.6); animation: pulse 2.2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(56,225,196,0.55); } 70% { box-shadow: 0 0 0 9px rgba(56,225,196,0); } 100% { box-shadow: 0 0 0 0 rgba(56,225,196,0); } }
.hero__title {
  font-family: var(--font-display); font-weight: 800; letter-spacing: -0.03em;
  font-size: clamp(2.8rem, 6vw, 4.6rem); line-height: 1.02; margin-bottom: 14px;
}
.hero__roles { font-size: clamp(1.05rem, 2.3vw, 1.4rem); font-weight: 700; font-family: var(--font-display); letter-spacing: -0.01em; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 22px; }
.dot-sep { color: var(--text-mute); font-weight: 400; }
.hero__desc { color: var(--text-dim); font-size: 1.06rem; max-width: 560px; margin-bottom: 30px; }
.hero__desc strong { color: var(--text); font-weight: 600; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.hero__socials { display: flex; gap: 12px; }
.hero__socials a {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 11px;
  border: 1px solid var(--border-strong); color: var(--text-dim); transition: 0.2s;
}
.hero__socials a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); background: rgba(56,225,196,0.06); }

/* Hero portrait */
.hero__portrait { display: grid; place-items: center; }
.portrait { position: relative; width: 100%; max-width: 380px; }
.portrait__frame {
  position: relative; border-radius: 22px; overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 5;
}
.portrait__frame::before {
  content: ''; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  border-radius: 22px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
}
.portrait__frame img {
  width: 100%; height: 100%; object-fit: cover; object-position: 50% 14%;
  filter: saturate(1.03) contrast(1.03);
}
.portrait__glow {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, transparent 45%, rgba(10,14,20,0.55) 100%);
  mix-blend-mode: normal;
}
.portrait::after {
  content: ''; position: absolute; inset: -2px; z-index: -1; border-radius: 24px;
  background: var(--grad); filter: blur(22px); opacity: 0.35;
}
.portrait__badge {
  position: absolute; z-index: 3; display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text);
  background: rgba(13, 18, 27, 0.82); backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong); padding: 8px 13px; border-radius: 100px;
  box-shadow: 0 8px 24px -10px rgba(0,0,0,0.7);
}
.portrait__badge--top { top: 16px; left: 16px; }
.portrait__badge--bottom { bottom: 16px; right: 16px; }
.portrait__badge-k { color: var(--text-mute); }

/* Terminal card */
.terminal {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.terminal__bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.02); }
.terminal__dot { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.terminal__dot:nth-child(2) { background: #febc2e; }
.terminal__dot:nth-child(3) { background: #28c840; }
.terminal__title { margin-left: 10px; font-family: var(--font-mono); font-size: 12px; color: var(--text-mute); }
.terminal__body { padding: 20px; font-family: var(--font-mono); font-size: 13px; line-height: 1.7; overflow-x: auto; color: var(--text-dim); }
.c-key { color: #ff7eb6; } .c-var { color: #79c0ff; } .c-prop { color: #7ee787; }
.c-str { color: #a5d6ff; } .c-num { color: #ffab70; } .c-bool { color: #ff7eb6; }

/* Stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 64px;
  border-top: 1px solid var(--border); padding-top: 40px;
}
.stat { text-align: center; }
.stat__num { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 4vw, 2.9rem); background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: -0.02em; }
.stat__label { color: var(--text-mute); font-size: 13.5px; letter-spacing: 0.02em; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section--contact { padding-bottom: 60px; }
.section__head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 48px; }
.section__index { font-family: var(--font-mono); color: var(--accent); font-size: 15px; font-weight: 500; }
.section__title { font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em; font-size: clamp(1.8rem, 4vw, 2.6rem); }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 1.6fr 1fr; gap: 48px; align-items: start; }
.about__lead p { color: var(--text-dim); font-size: 1.05rem; margin-bottom: 18px; }
.about__lead strong { color: var(--text); font-weight: 600; }
.about__aside { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 90px; }
.about__aside .terminal__body { font-size: 12px; padding: 16px; }
.about__facts { list-style: none; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 22px; }
.about__facts li { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.about__facts li:last-child { border-bottom: 0; }
.about__facts .k { color: var(--text-mute); font-size: 14px; }
.about__facts .v { color: var(--text); font-weight: 600; font-size: 14px; text-align: right; }

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 8px; }
.timeline::before { content: ''; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--accent), var(--accent-3), transparent); }
.tl { position: relative; padding-left: 40px; margin-bottom: 26px; }
.tl__marker { position: absolute; left: 0; top: 26px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); box-shadow: 0 0 0 4px rgba(56,225,196,0.12); }
.tl__card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 28px; transition: border-color 0.25s, transform 0.25s; }
.tl__card:hover { border-color: var(--border-strong); transform: translateX(4px); }
.tl__top { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.tl__role { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
.tl__date { font-family: var(--font-mono); font-size: 12.5px; color: var(--accent); white-space: nowrap; }
.tl__org { color: var(--text-dim); font-size: 14.5px; margin: 4px 0 16px; font-weight: 500; }
.tl__points { list-style: none; display: flex; flex-direction: column; gap: 9px; margin-bottom: 18px; }
.tl__points li { position: relative; padding-left: 20px; color: var(--text-dim); font-size: 14.5px; }
.tl__points li::before { content: '▹'; position: absolute; left: 0; color: var(--accent); }
.tl__points strong { color: var(--text); font-weight: 600; }
.tl__tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tl__tags span { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim); background: rgba(255,255,255,0.03); border: 1px solid var(--border); padding: 4px 10px; border-radius: 7px; }

/* ---------- Skills ---------- */
.skills { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skill-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; transition: border-color 0.25s, transform 0.25s, background 0.25s; }
.skill-card:hover { border-color: var(--border-strong); transform: translateY(-4px); background: var(--surface-2); }
.skill-card__icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: rgba(56,225,196,0.09); border: 1px solid rgba(56,225,196,0.2); color: var(--accent); font-size: 20px; font-family: var(--font-mono); margin-bottom: 16px; }
.skill-card h3 { font-family: var(--font-display); font-size: 1.08rem; margin-bottom: 16px; letter-spacing: -0.01em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span { font-size: 13px; color: var(--text-dim); background: rgba(255,255,255,0.03); border: 1px solid var(--border); padding: 5px 12px; border-radius: 8px; transition: 0.2s; }
.chips span:hover { color: var(--text); border-color: var(--accent); }
.chips--sm span { font-size: 11.5px; padding: 4px 10px; font-family: var(--font-mono); }

/* ---------- Certifications ---------- */
.certs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cert {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; transition: border-color 0.25s, transform 0.25s, background 0.25s;
}
.cert:hover { border-color: var(--border-strong); transform: translateY(-4px); background: var(--surface-2); }
.cert__logo {
  flex-shrink: 0; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px;
  font-family: var(--font-display); font-weight: 800; font-size: 14px; color: #fff;
  border: 1px solid var(--border-strong);
}
.cert__logo--coursera { background: linear-gradient(135deg, #2a5bd7, #4285f4); }
.cert__logo--hr { background: linear-gradient(135deg, #0a8f3c, #1ec55f); font-size: 15px; }
.cert__logo--g42 { background: linear-gradient(135deg, #6c8cff, #b78bff); font-size: 13px; }
.cert__name { font-family: var(--font-display); font-size: 1.02rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.25; }
.cert__issuer { color: var(--text); font-size: 13.5px; font-weight: 600; margin-top: 3px; }
.cert__date { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-mute); margin: 4px 0 12px; }

/* ---------- Featured project ---------- */
.feature {
  display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 40px; align-items: center;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-strong); border-radius: 22px; padding: 42px; margin-bottom: 36px;
  position: relative; overflow: hidden;
}
.feature::before { content: ''; position: absolute; top: -40%; right: -10%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(108,140,255,0.14), transparent 65%); pointer-events: none; }
.feature__badge { display: inline-block; font-family: var(--font-mono); font-size: 12px; color: var(--accent); background: rgba(56,225,196,0.08); border: 1px solid rgba(56,225,196,0.25); padding: 5px 12px; border-radius: 100px; margin-bottom: 16px; }
.feature__title { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.feature__desc { color: var(--text-dim); margin-bottom: 22px; font-size: 1.02rem; }
.feature__desc strong { color: var(--text); font-weight: 600; }
.feature__meta { display: grid; gap: 14px; margin-bottom: 22px; }
.feature__meta > div { display: flex; flex-direction: column; gap: 2px; }
.feature__meta-k { font-family: var(--font-mono); font-size: 11px; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; }
.feature__meta-v { color: var(--text); font-size: 14.5px; font-weight: 500; }

/* Gauge visual */
.feature__visual { display: grid; place-items: center; }
.gauge { width: 100%; max-width: 240px; text-align: center; }
.gauge__ring { position: relative; width: 180px; height: 180px; margin: 0 auto; }
.gauge__ring svg { transform: rotate(-90deg); width: 100%; height: 100%; }
.gauge__track { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 8; }
.gauge__fill { fill: none; stroke: url(#gaugeGrad); stroke: var(--accent); stroke-width: 8; stroke-linecap: round; stroke-dasharray: 327; stroke-dashoffset: 82; filter: drop-shadow(0 0 6px rgba(56,225,196,0.5)); animation: gaugeIn 1.6s ease-out; }
@keyframes gaugeIn { from { stroke-dashoffset: 327; } }
.gauge__center { position: absolute; inset: 0; display: grid; place-content: center; }
.gauge__val { font-family: var(--font-display); font-size: 2.4rem; font-weight: 800; line-height: 1; }
.gauge__unit { font-family: var(--font-mono); font-size: 12px; color: var(--text-mute); }
.gauge__bars { display: flex; align-items: flex-end; justify-content: center; gap: 5px; height: 46px; margin: 20px 0 12px; }
.gauge__bars span { width: 7px; height: var(--h); background: var(--grad); border-radius: 3px; opacity: 0.8; animation: barPulse 2.2s ease-in-out infinite; }
.gauge__bars span:nth-child(odd) { animation-delay: 0.4s; }
.gauge__bars span:nth-child(3n) { animation-delay: 0.8s; }
@keyframes barPulse { 0%, 100% { transform: scaleY(0.7); } 50% { transform: scaleY(1); } }
.gauge__legend { font-family: var(--font-mono); font-size: 12px; color: var(--text-dim); display: inline-flex; align-items: center; gap: 7px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 6px rgba(56, 225, 196, 0.7); }

/* ---------- Project filter ---------- */
.proj-filter { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.proj-filter__chip {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  font-family: var(--font); font-size: 14px; font-weight: 500; color: var(--text-dim);
  background: var(--surface); border: 1px solid var(--border); padding: 9px 16px; border-radius: 100px;
  transition: color 0.2s, border-color 0.2s, background 0.2s, transform 0.2s;
}
.proj-filter__chip:hover { color: var(--text); border-color: var(--border-strong); transform: translateY(-2px); }
.proj-filter__chip.is-active { color: #041014; background: var(--grad); border-color: transparent; font-weight: 600; }
.proj-filter__count { font-family: var(--font-mono); font-size: 11px; opacity: 0.7; }
.proj.hide { display: none; }

/* ---------- Project grid ---------- */
.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.proj { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: border-color 0.25s, transform 0.25s, background 0.25s; display: flex; flex-direction: column; }
.proj:hover { border-color: var(--border-strong); transform: translateY(-4px); background: var(--surface-2); }
.proj__head { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.proj__title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
.proj__link { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--border); color: var(--text-dim); transition: 0.2s; }
.proj__link:hover { color: var(--accent); border-color: var(--accent); transform: rotate(0) scale(1.05); background: rgba(56,225,196,0.06); }
.proj__link--static { color: var(--text-mute); }
.proj__cat { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin: 6px 0 12px; }
.proj__desc { color: var(--text-dim); font-size: 14px; margin-bottom: 18px; flex: 1; }
.proj .chips--sm { margin-top: auto; }

/* ---------- Impact ---------- */
.impact { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.impact__card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; display: flex; gap: 16px; align-items: flex-start; transition: 0.25s; }
.impact__card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.impact__ico { flex-shrink: 0; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 11px; background: var(--grad); color: #041014; font-size: 20px; font-weight: 800; }
.impact__card p { color: var(--text-dim); font-size: 14.5px; }
.impact__card strong { color: var(--text); font-weight: 600; }

/* ---------- Contact ---------- */
.section--contact { text-align: center; }
.contact { max-width: 760px; margin: 0 auto; }
.contact .section__index { display: block; margin-bottom: 14px; }
.contact__title { font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -0.02em; line-height: 1.08; margin-bottom: 20px; }
.contact__desc { color: var(--text-dim); font-size: 1.1rem; max-width: 560px; margin: 0 auto 34px; }
.contact__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 44px; }
.contact__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; border-top: 1px solid var(--border); padding-top: 34px; text-align: left; }
.contact__grid > div { display: flex; flex-direction: column; gap: 5px; }
.contact__grid .k { font-family: var(--font-mono); font-size: 11px; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; }
.contact__grid a, .contact__grid span:not(.k) { color: var(--text); font-size: 14.5px; font-weight: 500; white-space: nowrap; transition: color 0.2s; }
.contact__grid a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 30px 0; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; color: var(--text-mute); font-size: 13.5px; }
.footer__built { font-family: var(--font-mono); font-size: 12px; }
.footer__top { color: var(--text-dim); transition: color 0.2s; }
.footer__top:hover { color: var(--accent); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero__inner { grid-template-columns: 1fr; gap: 44px; justify-items: start; }
  .hero__portrait { order: -1; }
  .about { grid-template-columns: 1fr; gap: 28px; }
  .about__aside { position: static; }
  .skills, .proj-grid, .impact, .certs { grid-template-columns: repeat(2, 1fr); }
  .feature { grid-template-columns: 1fr; }
  .feature__visual { order: -1; }
  .contact__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px 12px; }
  .section { padding: 72px 0; }
  .feature { padding: 28px; }
}
@media (max-width: 520px) {
  .skills, .proj-grid, .impact, .certs { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .tl__top { flex-direction: column; gap: 4px; }
  .hero__desc { font-size: 1rem; }
  .btn { flex: 1; }
  .hero__cta .btn, .contact__actions .btn { flex: 1 1 auto; }
}