/* =========================================================
   Muhammad Yasin — Web3 / Full-Stack Developer Portfolio
   Vanilla CSS. All theming via custom properties in :root.
   Edit the tokens below to re-theme the whole site quickly.
========================================================= */

/* ---------- Design tokens ---------- */
:root {
  /* Accent gradient (the brand) */
  --c-blue:   #1F6FEB;
  --c-violet: #7C3AED;
  --c-cyan:   #22D3EE;
  --grad-accent: linear-gradient(135deg, var(--c-blue) 0%, var(--c-violet) 55%, var(--c-cyan) 100%);

  /* Dark theme (default) */
  --bg:          #0B0E14;
  --bg-elev:     #11151F;
  --surface:     rgba(255, 255, 255, 0.04);
  --surface-2:   rgba(255, 255, 255, 0.06);
  --border:      rgba(255, 255, 255, 0.10);
  --border-glow: rgba(124, 58, 237, 0.35);
  --text:        #E8ECF4;
  --text-muted:  #97A1B5;
  --text-dim:    #6B7488;

  /* Type */
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  /* Spacing / layout */
  --maxw: 1140px;
  --gutter: clamp(1rem, 4vw, 2rem);
  --section-y: clamp(4rem, 9vw, 7rem);
  --radius: 18px;
  --radius-sm: 12px;

  /* Effects */
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.65);
  --glow: 0 0 40px -8px rgba(124, 58, 237, 0.45);
  --ring: 0 0 0 2px rgba(34, 211, 238, 0.35);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light theme overrides */
[data-theme="light"] {
  --bg:         #F5F7FB;
  --bg-elev:    #FFFFFF;
  --surface:    rgba(15, 23, 42, 0.03);
  --surface-2:  rgba(15, 23, 42, 0.05);
  --border:     rgba(15, 23, 42, 0.12);
  --border-glow: rgba(124, 58, 237, 0.30);
  --text:       #0B0E14;
  --text-muted: #475067;
  --text-dim:   #6B7488;
  --shadow:     0 20px 50px -24px rgba(31, 111, 235, 0.25);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

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

::selection { background: rgba(124, 58, 237, 0.4); color: #fff; }

/* ---------- Accessibility helpers ---------- */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 1000;
  background: var(--c-violet); color: #fff; padding: 0.6rem 1rem; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

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

/* ---------- Scroll progress bar ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%; z-index: 200;
  background: var(--grad-accent); background-size: 200% 100%;
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.7);
  transition: width 0.08s linear;
}

/* ---------- Cursor spotlight (desktop pointers only) ---------- */
.cursor-glow {
  position: fixed; top: 0; left: 0; width: 480px; height: 480px; z-index: -1;
  border-radius: 50%; pointer-events: none; opacity: 0;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(34, 211, 238, 0.12), transparent 60%);
  transition: opacity 0.4s ease;
}
@media (hover: hover) and (pointer: fine) {
  body.cursor-active .cursor-glow { opacity: 1; }
}

/* ---------- Background decoration ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
}
[data-theme="light"] .bg-grid {
  background-image:
    linear-gradient(to right, rgba(15,23,42,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15,23,42,0.04) 1px, transparent 1px);
}

.bg-blob {
  position: fixed; z-index: -1; border-radius: 50%; pointer-events: none;
  filter: blur(90px); opacity: 0.45;
  animation: float 18s ease-in-out infinite;
}
.bg-blob--1 {
  width: 520px; height: 520px; top: -120px; right: -100px;
  background: radial-gradient(circle, var(--c-violet), transparent 70%);
}
.bg-blob--2 {
  width: 460px; height: 460px; top: 40%; left: -160px;
  background: radial-gradient(circle, var(--c-blue), transparent 70%);
  animation-delay: -9s;
}
.bg-blob--3 {
  width: 380px; height: 380px; bottom: 5%; right: 5%;
  background: radial-gradient(circle, var(--c-cyan), transparent 70%);
  opacity: 0.25; animation-delay: -4s;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(30px, 40px) scale(1.08); }
}

/* ---------- Layout primitives ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

.section { padding-block: var(--section-y); }

.section__head { margin-bottom: clamp(2rem, 5vw, 3.25rem); max-width: 720px; }
.section__kicker {
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--c-cyan);
  letter-spacing: 0.05em; margin-bottom: 0.6rem;
}
.section__title {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(1.75rem, 4vw, 2.6rem); line-height: 1.15; letter-spacing: -0.02em;
}
.section__lead { margin-top: 0.9rem; color: var(--text-muted); font-size: 1.05rem; }

.grad-text {
  background: var(--grad-accent);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.grad-text--shimmer {
  background: linear-gradient(110deg, var(--c-blue), var(--c-violet), var(--c-cyan), var(--c-violet), var(--c-blue));
  background-size: 220% auto;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer { to { background-position: 220% center; } }

/* ---------- Glassmorphism + gradient borders ---------- */
.glass {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ---------- Interactive card spotlight + tilt ----------
   JS sets --mx/--my (mouse position within card) and tilt transforms. */
.tilt { transform-style: preserve-3d; transition: transform 0.18s ease, border-color var(--transition), box-shadow var(--transition); }
.spotlight::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  opacity: 0; transition: opacity 0.3s ease;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(34, 211, 238, 0.14), transparent 60%);
}
.spotlight:hover::after { opacity: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-head); font-weight: 500; font-size: 0.98rem;
  padding: 0.8rem 1.5rem; border-radius: 999px; border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  will-change: transform;
}
.btn--sm { padding: 0.5rem 1rem; font-size: 0.88rem; }
.btn--full { width: 100%; }
.btn--primary {
  background: var(--grad-accent); color: #fff; background-size: 160% 160%;
  box-shadow: var(--glow);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 0 50px -6px rgba(124,58,237,0.7); background-position: 100% 0; }
.btn--ghost { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn--ghost:hover { transform: translateY(-2px); border-color: var(--c-cyan); background: var(--surface-2); }

/* ---------- Monospace chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted);
  padding: 0.35rem 0.7rem; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.chip:hover { color: var(--text); border-color: var(--border-glow); background: var(--surface-2); }
.chips--sm .chip { font-size: 0.72rem; padding: 0.28rem 0.55rem; }

/* =========================================================
   HEADER / NAV
========================================================= */
.header {
  position: sticky; top: 0; z-index: 100;
  transition: background var(--transition), border-color var(--transition), padding var(--transition);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; padding-block: 1.1rem; transition: padding var(--transition); }
.header.scrolled .header__inner { padding-block: 0.7rem; }

.logo { font-family: var(--font-head); font-weight: 700; font-size: 1.3rem; letter-spacing: -0.02em; display: inline-flex; align-items: center; }
.logo__mark { font-family: var(--font-mono); background: var(--grad-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
.logo__name { color: var(--text); }
.logo--sm { font-size: 1.15rem; }

.nav__list { display: flex; gap: 0.4rem; }
.nav__link {
  position: relative; font-size: 0.95rem; color: var(--text-muted);
  padding: 0.5rem 0.85rem; border-radius: 8px; transition: color var(--transition);
}
.nav__link:hover { color: var(--text); }
.nav__link.active { color: var(--text); }
.nav__link.active::after {
  content: ""; position: absolute; left: 0.85rem; right: 0.85rem; bottom: 0.25rem; height: 2px;
  background: var(--grad-accent); border-radius: 2px;
}

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

.theme-toggle {
  display: grid; place-items: center; width: 40px; height: 40px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); transition: border-color var(--transition), background var(--transition);
}
.theme-toggle:hover { border-color: var(--c-cyan); background: var(--surface-2); }
.theme-toggle .icon--sun { display: none; }
[data-theme="light"] .theme-toggle .icon--moon { display: none; }
[data-theme="light"] .theme-toggle .icon--sun { display: block; }

/* Hamburger */
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 42px; height: 42px; align-items: center; justify-content: center; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }
.nav-toggle span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.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 { padding-block: clamp(3rem, 8vw, 6rem) clamp(2rem, 5vw, 4rem); }
.hero__inner { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--c-cyan);
  padding: 0.4rem 0.85rem; border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface); margin-bottom: 1.4rem;
}
.eyebrow__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-cyan); box-shadow: 0 0 10px var(--c-cyan); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero__title {
  font-family: var(--font-head); font-weight: 700;
  font-size: clamp(2.1rem, 5.5vw, 3.7rem); line-height: 1.08; letter-spacing: -0.03em;
  margin-bottom: 1.3rem;
}
/* Terminal-style role rotator */
.hero__rotator {
  font-family: var(--font-mono); font-size: clamp(0.9rem, 1.8vw, 1.05rem);
  color: var(--text-muted); margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem;
}
.hero__rotator-prefix { color: var(--c-cyan); }
.hero__rotator-words { color: var(--text); }
.hero__caret { width: 9px; height: 1.1em; background: var(--c-cyan); display: inline-block; border-radius: 1px; animation: blink 1s steps(2) infinite; }
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

.hero__subtext { color: var(--text-muted); font-size: clamp(1rem, 2vw, 1.15rem); max-width: 56ch; margin-bottom: 1.9rem; }
.hero__subtext strong { color: var(--text); }

.hero__cta { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 2.2rem; }
.hero__chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* Portrait + glowing gradient ring */
.hero__portrait { position: relative; display: grid; place-items: center; }
.portrait-ring {
  position: relative; width: clamp(220px, 32vw, 320px); aspect-ratio: 1; border-radius: 50%;
  padding: 6px; background: var(--grad-accent); background-size: 200% 200%;
  box-shadow: var(--glow); animation: spinGrad 8s linear infinite;
}
@keyframes spinGrad { to { background-position: 200% 200%; } }
.portrait-ring::before {
  content: ""; position: absolute; inset: -14px; border-radius: 50%;
  background: var(--grad-accent); filter: blur(34px); opacity: 0.4; z-index: -1;
}
.portrait-ring img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; object-position: center 30%; border: 4px solid var(--bg); background: var(--bg-elev); }

.portrait-badge {
  position: absolute; bottom: 6%; left: 50%; transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: 0.5rem; white-space: nowrap;
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text);
  padding: 0.45rem 0.85rem; border-radius: 999px;
  background: color-mix(in srgb, var(--bg-elev) 85%, transparent);
  border: 1px solid var(--border); backdrop-filter: blur(8px); box-shadow: var(--shadow);
}
.portrait-badge__dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 8px #22c55e; }

/* =========================================================
   STATS STRIP
========================================================= */
.stats { padding-block: clamp(1rem, 3vw, 2rem); }
.stats__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  padding: clamp(1.5rem, 3vw, 2.25rem); border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}
.stat { text-align: center; padding: 0.5rem; }
.stat__num { display: block; font-family: var(--font-head); font-weight: 700; font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1; background: var(--grad-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat__label { display: block; margin-top: 0.5rem; font-size: 0.88rem; color: var(--text-muted); }

/* =========================================================
   ABOUT
========================================================= */
.about__grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.about__body p { color: var(--text-muted); margin-bottom: 1.1rem; font-size: 1.05rem; }
.about__body strong { color: var(--text); }

.about__card { padding: 1.75rem; box-shadow: var(--shadow); }
.about__card-title { font-family: var(--font-head); font-size: 1.15rem; margin-bottom: 1rem; }
.cred-list li { display: flex; gap: 0.6rem; align-items: baseline; color: var(--text-muted); padding-block: 0.45rem; border-bottom: 1px solid var(--border); font-size: 0.95rem; }
.cred-list li:last-child { border-bottom: none; }
.cred-icon { color: var(--c-cyan); font-family: var(--font-mono); }
.about__card-link { display: inline-block; margin-top: 1.2rem; font-family: var(--font-head); font-weight: 500; color: var(--c-cyan); transition: opacity var(--transition); }
.about__card-link:hover { opacity: 0.75; }

/* =========================================================
   SKILLS
========================================================= */
.skills__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.skill-card { padding: 1.6rem; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition); overflow: hidden; }
.skill-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--grad-accent);
  opacity: 0.85;
}
.skill-card:hover { transform: translateY(-4px); border-color: var(--border-glow); box-shadow: var(--shadow); }
.skill-card__title { font-family: var(--font-head); font-size: 1.15rem; margin-bottom: 1.1rem; display: flex; align-items: center; gap: 0.6rem; }
.skill-card__badge { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: var(--surface-2); border: 1px solid var(--border); font-size: 1rem; }

/* =========================================================
   EXPERIENCE — timeline
========================================================= */
.timeline { position: relative; display: grid; gap: 1.25rem; padding-left: 2rem; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--c-violet), var(--c-cyan), transparent); }
.timeline__item { position: relative; }
.timeline__dot { position: absolute; left: -2rem; top: 1.8rem; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 3px solid var(--c-cyan); box-shadow: 0 0 12px var(--c-cyan); }
.timeline__card { padding: 1.5rem; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition); }
.timeline__card:hover { transform: translateX(4px); border-color: var(--border-glow); box-shadow: var(--shadow); }
.timeline__top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 0.5rem; }
.timeline__role { font-family: var(--font-head); font-size: 1.15rem; font-weight: 600; }
.timeline__date { font-family: var(--font-mono); font-size: 0.8rem; color: var(--c-cyan); white-space: nowrap; }
.timeline__org { font-family: var(--font-head); font-weight: 500; color: var(--text); margin-block: 0.3rem 0.7rem; }
.timeline__desc { color: var(--text-muted); font-size: 0.98rem; }

/* =========================================================
   PROJECTS
========================================================= */
.projects__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.project-card { padding: 1.6rem; display: flex; flex-direction: column; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition); overflow: hidden; }
.project-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--grad-accent); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
.project-card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: var(--shadow); }
.project-card:hover::before { transform: scaleX(1); }
.project-card--flagship::before { transform: scaleX(1); }
.project-card--flagship { border-color: var(--border-glow); }
.project-card__flag { font-family: var(--font-mono); font-size: 0.72rem; color: var(--c-cyan); margin-bottom: 0.7rem; }
.project-card__title { font-family: var(--font-head); font-size: 1.2rem; font-weight: 600; margin-bottom: 0.6rem; }
.project-card__desc { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1.1rem; flex: 1; }
.project-card .chips { margin-bottom: 1.2rem; }
.project-card__links { display: flex; gap: 1rem; margin-top: auto; }
.project-link { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text); border-bottom: 1px solid var(--border-glow); padding-bottom: 2px; transition: color var(--transition); }
.project-link:hover { color: var(--c-cyan); }

.project-card--more { align-items: center; justify-content: center; text-align: center; border-style: dashed; }
.project-card__more-inner { display: grid; place-items: center; gap: 0.5rem; color: var(--text-muted); }
.project-card--more:hover .project-card__more-inner { color: var(--text); }
.project-card--more svg { color: var(--c-violet); }

/* =========================================================
   CONTACT
========================================================= */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.contact-item {
  position: relative; overflow: hidden; height: 100%;
  display: flex; align-items: center; gap: 0.9rem; padding: 1.15rem 1.25rem;
  border-radius: var(--radius-sm); transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
a.contact-item:hover { transform: translateY(-4px); border-color: var(--border-glow); background: var(--surface-2); box-shadow: var(--shadow); }
.contact-item__icon { display: grid; place-items: center; width: 42px; height: 42px; flex-shrink: 0; border-radius: 11px; background: var(--grad-accent); color: #fff; font-family: var(--font-mono); font-size: 0.9rem; font-weight: 600; box-shadow: var(--glow); }
.contact-item__icon--svg svg { display: block; }
.contact-item__text { display: flex; flex-direction: column; font-size: 0.95rem; color: var(--text); word-break: break-word; }
.contact-item__label { font-size: 0.72rem; color: var(--text-dim); font-family: var(--font-mono); margin-bottom: 0.1rem; }

/* =========================================================
   FOOTER
========================================================= */
.footer { border-top: 1px solid var(--border); padding-block: 2.5rem 1.5rem; margin-top: var(--section-y); }
.footer__inner { display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between; align-items: center; }
.footer__brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.4rem; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer__nav a, .footer__social a { color: var(--text-muted); font-size: 0.92rem; transition: color var(--transition); }
.footer__nav a:hover, .footer__social a:hover { color: var(--c-cyan); }
.footer__social { display: flex; gap: 1.2rem; }
.footer__copy { margin-top: 1.8rem; padding-top: 1.2rem; border-top: 1px solid var(--border); }
.footer__copy p { color: var(--text-dim); font-size: 0.85rem; }

/* =========================================================
   Scroll reveal animation
========================================================= */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* =========================================================
   Responsive
========================================================= */
@media (max-width: 920px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__portrait { order: -1; }
  .eyebrow, .hero__cta, .hero__chips, .hero__rotator { justify-content: center; }
  .hero__subtext { margin-inline: auto; }
  .about__grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px);
    background: var(--bg-elev); border-left: 1px solid var(--border);
    padding: 5rem 1.5rem 2rem; transform: translateX(100%);
    transition: transform var(--transition); z-index: 90; box-shadow: var(--shadow);
  }
  .nav.open { transform: translateX(0); }
  .nav__list { flex-direction: column; gap: 0.3rem; }
  .nav__link { display: block; padding: 0.85rem 1rem; font-size: 1.05rem; }
  .nav__link.active::after { display: none; }
  .nav-toggle { display: flex; }
  .header__resume { display: none; }
  .skills__grid, .projects__grid, .contact-grid { grid-template-columns: 1fr; }
  body.nav-open { overflow: hidden; }
}

@media (max-width: 460px) {
  .stats__grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}