/* ==============================
   Hassan Naeem — Portfolio v2
   Modern dark theme · purple accent
   ============================== */

/* ---------- Self-hosted fonts (GDPR-clean) ---------- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('../fonts/inter-300.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/inter-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/inter-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/inter-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/inter-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/space-grotesk-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/space-grotesk-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/space-grotesk-700.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-400.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-500.woff2') format('woff2');
}

/* ---------- Tokens ---------- */
:root {
  --bg:            #0b0d17;
  --bg-elev:       #11131f;
  --bg-card:       rgba(255, 255, 255, 0.03);
  --bg-card-hov:   rgba(255, 255, 255, 0.06);

  --fg:            #e6e8ef;
  --fg-dim:        #a1a5b3;
  --fg-muted:      #848799;

  --border:        rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --accent:        #6e40c9;
  --accent-2:      #a371f7;
  --accent-glow:   rgba(110, 64, 201, 0.35);
  --accent-soft:   rgba(110, 64, 201, 0.12);

  --gradient:      linear-gradient(135deg, #6e40c9 0%, #a371f7 50%, #ec4899 100%);

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

  --radius-sm:     8px;
  --radius-md:     14px;
  --radius-lg:     20px;

  --shadow-lg:     0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --shadow-glow:   0 0 40px -5px var(--accent-glow);

  --max-w:         1180px;
  --section-pad:   7rem;

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

/* ---------- A11y: focus indicators ---------- */
*:focus { outline: none; }

*:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

.btn:focus-visible,
.nav__link:focus-visible,
.skill-card__chips span:focus-visible {
  outline-offset: 4px;
}

/* ---------- Skip-to-content (a11y) ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 0 0 8px 0;
  z-index: 200;
  font-weight: 500;
}
.skip-link:focus {
  left: 0;
  outline: 2px solid #fff;
  outline-offset: 2px;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

button {
  font: inherit;
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}

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

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #23263a; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #2d3148; }

/* ---------- Background FX ---------- */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(800px 500px at 10% -10%, rgba(110, 64, 201, 0.25), transparent 60%),
    radial-gradient(700px 500px at 90% 10%, rgba(236, 72, 153, 0.12), transparent 60%),
    radial-gradient(500px 500px at 50% 80%, rgba(163, 113, 247, 0.08), transparent 60%);
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  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: 50px 50px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  pointer-events: none;
}

.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 400px;
  height: 400px;
  pointer-events: none;
  background: radial-gradient(circle, var(--accent-glow), transparent 60%);
  transform: translate(-50%, -50%);
  z-index: -1;
  transition: transform 0.2s ease-out, opacity 0.3s ease-out;
  opacity: 0;
  filter: blur(40px);
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-pad) 0;
  position: relative;
}

.section__head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.section__num {
  font-family: var(--font-mono);
  color: var(--accent-2);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.section__line {
  flex: 1;
  height: 1px;
  background: var(--border);
  max-width: 280px;
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: all 0.25s var(--ease);
  cursor: pointer;
  white-space: nowrap;
}

.btn--sm { padding: 0.55rem 0.95rem; font-size: 0.85rem; }

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px -5px var(--accent-glow);
}

.btn--ghost {
  background: var(--bg-card);
  color: var(--fg);
  border-color: var(--border);
  backdrop-filter: blur(10px);
}
.btn--ghost:hover {
  background: var(--bg-card-hov);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn--outline:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: all 0.3s var(--ease);
}

.nav.is-scrolled {
  background: rgba(11, 13, 23, 0.75);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  padding: 0.7rem 0;
}

.nav__container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: baseline;
}
.nav__logo-mark {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav__logo-dot { color: var(--accent-2); }

.nav__menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav__link {
  font-size: 0.92rem;
  color: var(--fg-dim);
  position: relative;
  padding: 0.25rem 0;
  transition: color 0.2s var(--ease);
}
.nav__link:hover,
.nav__link.active { color: var(--fg); }

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 0;
  background: var(--gradient);
  transition: width 0.3s var(--ease);
  border-radius: 2px;
}
.nav__link:hover::after,
.nav__link.active::after { width: 100%; }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav__toggle {
  display: none;
  font-size: 1.4rem;
  color: var(--fg);
  padding: 0.4rem;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-top: 6rem;
  padding-bottom: 4rem;
}

.hero__container {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 900px;
}

.hero__badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  font-size: 0.85rem;
  color: var(--fg-dim);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: #3fb950;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(63, 185, 80, 0.5);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(63, 185, 80, 0.5); }
  70%  { box-shadow: 0 0 0 10px rgba(63, 185, 80, 0); }
  100% { box-shadow: 0 0 0 0 rgba(63, 185, 80, 0); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.typewriter {
  color: var(--accent-2);
  border-right: 3px solid var(--accent-2);
  padding-right: 4px;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50%     { border-color: var(--accent-2); }
  50.1%, 100% { border-color: transparent; }
}

.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--fg-dim);
  max-width: 680px;
  line-height: 1.7;
}
.hero__subtitle strong { color: var(--fg); font-weight: 500; }

.hero__ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.hero__socials {
  display: flex;
  gap: 1.25rem;
  margin-top: 0.6rem;
  font-size: 1.35rem;
  color: var(--fg-muted);
}
.hero__socials a {
  transition: all 0.2s var(--ease);
}
.hero__socials a:hover {
  color: var(--accent-2);
  transform: translateY(-2px);
}

/* Marquee */
.hero__marquee {
  margin-top: 5rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.marquee__track {
  display: flex;
  gap: 2rem;
  white-space: nowrap;
  animation: marquee 40s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.marquee__track span:nth-child(even) { color: var(--accent-2); }

@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ---------- About ---------- */
.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about__code {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.about__code:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.about__code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1rem;
  background: #181a28;
  border-bottom: 1px solid var(--border);
}
.about__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.about__dot--red    { background: #ff5f57; }
.about__dot--yellow { background: #febc2e; }
.about__dot--green  { background: #28c840; }
.about__file {
  margin-left: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-muted);
}

.about__code-body {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--fg-dim);
  overflow-x: auto;
}
.code-key { color: #ff7b72; }
.code-str { color: #a5d6ff; }
.code-num { color: #79c0ff; }

.about__text p { margin-bottom: 1rem; color: var(--fg-dim); }
.about__text strong { color: var(--fg); font-weight: 500; }

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.75rem 0;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.stat strong {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat span {
  font-size: 0.78rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Skills ---------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.skill-card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px circle at var(--mx, 50%) var(--my, 50%),
    var(--accent-soft),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.skill-card:hover::before { opacity: 1; }
.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-card-hov);
}

.skill-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent-2);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.skill-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.9rem;
  font-weight: 600;
}

.skill-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.skill-card__chips span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.25rem 0.65rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg-dim);
  transition: all 0.2s var(--ease);
}
.skill-card__chips span:hover {
  color: var(--accent-2);
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- Timeline ---------- */
.timeline {
  list-style: none;
  position: relative;
  padding-left: 2rem;
  max-width: 850px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  opacity: 0.4;
}

.timeline__item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline__dot {
  position: absolute;
  left: -2rem;
  top: 1.5rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px var(--bg), 0 0 15px var(--accent-glow);
}

.timeline__card {
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease);
}
.timeline__card:hover {
  border-color: var(--border-strong);
  transform: translateX(4px);
}

.timeline__meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.timeline__tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.2rem 0.6rem;
  background: var(--accent-soft);
  color: var(--accent-2);
  border-radius: 6px;
}
.timeline__loc {
  font-size: 0.78rem;
  color: var(--fg-muted);
}

.timeline__card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.timeline__card p {
  color: var(--fg-dim);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.timeline__tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.18rem 0.55rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg-dim);
}

/* ---------- Projects ---------- */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.project {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.project::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--accent-soft), transparent 40%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.project:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.project:hover::before { opacity: 1; }

.project__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.project__icon {
  font-size: 2rem;
  color: var(--accent-2);
}

.project__links {
  display: flex;
  gap: 0.75rem;
  font-size: 1.2rem;
  color: var(--fg-muted);
}
.project__links a:hover { color: var(--accent-2); }

.project__badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  background: var(--accent-soft);
  color: var(--accent-2);
  border: 1px solid var(--accent);
  border-radius: 999px;
  letter-spacing: 0.02em;
}

/* Education grid */
.education__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}
.education__card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease);
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
}
.education__card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-card-hov);
}
.education__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent-2);
  font-size: 1.4rem;
}
.education__content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.education__content p {
  color: var(--fg-dim);
  font-size: 0.9rem;
  margin: 0;
}

.project h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.project p {
  color: var(--fg-dim);
  font-size: 0.92rem;
  margin-bottom: 1.25rem;
  flex: 1;
}

.project__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.project__stack span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.18rem 0.55rem;
  color: var(--accent-2);
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent-soft);
}

.projects__footer {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}

/* ---------- Contact ---------- */
.contact { padding-bottom: calc(var(--section-pad) + 2rem); }

.contact__card {
  background: linear-gradient(135deg, var(--bg-card), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at top,
    var(--accent-soft),
    transparent 60%
  );
  pointer-events: none;
}

.contact__card .section__num {
  display: block;
  margin-bottom: 0.75rem;
  position: relative;
}

.contact__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  position: relative;
}

.contact__subtitle {
  color: var(--fg-dim);
  max-width: 640px;
  margin: 0 auto 2rem;
  font-size: 1.02rem;
  position: relative;
}
.contact__subtitle strong { color: var(--fg); font-weight: 500; }

.contact__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  position: relative;
}

.contact__socials {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  font-size: 1.4rem;
  color: var(--fg-muted);
  position: relative;
}
.contact__socials a { transition: all 0.2s var(--ease); }
.contact__socials a:hover {
  color: var(--accent-2);
  transform: translateY(-3px);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  text-align: center;
}
.footer__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}
.footer__tagline {
  color: var(--fg-muted);
  font-weight: 400;
  font-size: 0.85rem;
  font-family: var(--font-sans);
}
.footer__copy {
  font-size: 0.82rem;
  color: var(--fg-muted);
}
.footer__copy a {
  color: var(--fg-dim);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.footer__copy a:hover {
  color: var(--accent-2);
}

/* ---------- Back to top ---------- */
.to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  color: var(--fg);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: all 0.3s var(--ease);
  z-index: 50;
}
.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.to-top:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-2);
}

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  :root { --section-pad: 5rem; }

  .about__grid { grid-template-columns: 1fr; }

  .nav__menu {
    position: fixed;
    top: 70px;
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    background: rgba(11, 13, 23, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    gap: 1rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.3s var(--ease);
    pointer-events: none;
  }
  .nav__menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__toggle {
    display: grid;
    place-items: center;
  }
}

@media (max-width: 640px) {
  :root { --section-pad: 4rem; }

  .hero { padding-top: 5rem; }

  .section__line { display: none; }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding: 1rem;
  }
  .stat strong { font-size: 1.4rem; }

  .contact__card { padding: 2.5rem 1.5rem; }

  .hero__ctas .btn { flex: 1; justify-content: center; }

  .cursor-glow { display: none; }
}

/* Tablet-portrait tweak (iPad-ish) */
@media (min-width: 640px) and (max-width: 900px) {
  .skills__grid,
  .projects__grid,
  .education__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about__stats {
    padding: 1.25rem;
  }
}

/* Ultra-narrow (Galaxy Fold folded, tiny phones) */
@media (max-width: 360px) {
  .container { padding: 0 1rem; }
  .hero__title { font-size: 2rem; }
  .about__stats {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 0.9rem;
  }
  .stat strong { font-size: 1.25rem; }
  .about__code-body { font-size: 0.72rem; padding: 1rem; }
  .timeline { padding-left: 1.5rem; }
  .timeline__dot { left: -1.5rem; width: 14px; height: 14px; }
  .contact__card { padding: 2rem 1rem; }
  .nav__logo { font-size: 1.1rem; }
}

/* WCAG 2.5.5 — ensure icon-only touch targets are ≥44×44 */
.hero__socials a,
.contact__socials a,
.project__links a,
.nav__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}