/* =========================================================
   Satyam Gupta — Portfolio
   Design system + layout. No frameworks.
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Dark (default) */
  --bg: #0B0D10;
  --bg-grid: rgba(255, 255, 255, 0.022);
  --surface: #101318;
  --surface-2: #161A21;
  --surface-3: #1C212A;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #E8EBEF;
  --text-strong: #FBFCFD;
  --muted: #99A2AD;
  --faint: #6D7681;
  --accent: #5B8CFF;
  --accent-2: #63E6E2;
  --accent-strong: #7AA2FF;
  --accent-soft: rgba(91, 140, 255, 0.13);
  --accent-ring: rgba(91, 140, 255, 0.40);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 12px 30px -12px rgba(0,0,0,.7);
  --shadow-lg: 0 30px 70px -30px rgba(0,0,0,.85);

  --radius: 14px;
  --radius-lg: 22px;
  --container: 1160px;
  --pad: clamp(1.15rem, 4vw, 2rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

:root[data-theme="light"] {
  --bg: #FAFBFC;
  --bg-grid: rgba(10, 20, 40, 0.028);
  --surface: #FFFFFF;
  --surface-2: #F4F6F9;
  --surface-3: #EDF1F6;
  --border: rgba(12, 20, 34, 0.10);
  --border-strong: rgba(12, 20, 34, 0.20);
  --text: #1B2129;
  --text-strong: #0C1017;
  --muted: #566172;
  --faint: #8A93A1;
  --accent: #2F62E6;
  --accent-2: #0EA5A0;
  --accent-strong: #1E4FD1;
  --accent-soft: rgba(47, 98, 230, 0.09);
  --accent-ring: rgba(47, 98, 230, 0.35);
  --shadow-md: 0 14px 34px -16px rgba(20,35,70,.28);
  --shadow-lg: 0 36px 80px -40px rgba(20,35,70,.35);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.97rem + 0.2vw, 1.075rem);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background .4s var(--ease), color .4s var(--ease);
}
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 56px 56px;
  z-index: -2;
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed;
  top: -20%; left: 50%;
  width: 120vw; height: 60vh;
  transform: translateX(-50%);
  background: radial-gradient(60% 60% at 50% 0%, var(--accent-soft), transparent 70%);
  z-index: -1; pointer-events: none; opacity: .8;
}
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--text-strong); line-height: 1.12; letter-spacing: -0.02em; margin: 0; font-weight: 600; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--pad); }

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2.5px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 200; border-radius: 0 3px 3px 0;
  box-shadow: 0 0 12px var(--accent-ring);
  transition: width .08s linear;
}

/* ---------- Accessibility ---------- */
.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--accent); color: #fff; padding: .6rem 1rem;
  border-radius: 10px; z-index: 200; transition: top .2s;
}
.skip-link:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 3px; border-radius: 6px; }

/* ---------- Buttons ---------- */
.btn {
  --_bg: transparent;
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-body); font-weight: 550; font-size: .95rem;
  padding: .68rem 1.15rem; border-radius: 11px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .18s var(--ease), background .2s, border-color .2s, box-shadow .2s, color .2s;
  white-space: nowrap; line-height: 1;
}
.btn--lg { padding: .85rem 1.5rem; font-size: 1rem; }
.btn--block { width: 100%; justify-content: center; }
.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 8px 22px -10px var(--accent-ring); }
.btn--primary:hover { background: var(--accent-strong); transform: translateY(-2px); box-shadow: 0 14px 30px -12px var(--accent-ring); }
.btn--ghost { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--border-strong); transform: translateY(-2px); background: var(--surface-3); }
.btn:active { transform: translateY(0); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(150%) blur(14px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.is-scrolled { border-bottom-color: var(--border); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 68px; }
.nav__brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 600; color: var(--text-strong); }
.nav__mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
  background: var(--accent-soft); color: var(--accent); font-size: .82rem; font-weight: 700;
  border: 1px solid var(--accent-ring); letter-spacing: .02em;
}
.nav__name { font-size: .98rem; }
.nav__links { display: flex; gap: .35rem; }
.nav__links a {
  color: var(--muted); font-size: .92rem; font-weight: 500; padding: .5rem .7rem; border-radius: 9px;
  transition: color .2s, background .2s; position: relative;
}
.nav__links a:hover { color: var(--text-strong); background: var(--surface-2); }
.nav__actions { display: flex; align-items: center; gap: .55rem; }

.theme-toggle {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--muted); cursor: pointer;
  transition: color .2s, border-color .2s, background .2s;
}
.theme-toggle:hover { color: var(--text-strong); border-color: var(--border-strong); }
.theme-toggle__moon { display: none; }
:root[data-theme="light"] .theme-toggle__sun { display: none; }
:root[data-theme="light"] .theme-toggle__moon { display: block; }

.nav__burger { display: none; flex-direction: column; gap: 5px; width: 40px; height: 38px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; cursor: pointer; align-items: center; justify-content: center; }
.nav__burger span { display: block; width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  border-top: 1px solid var(--border); background: color-mix(in srgb, var(--bg) 96%, transparent);
  padding: 1rem var(--pad) 1.6rem;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu nav { display: flex; flex-direction: column; }
.mobile-menu nav a { padding: .85rem .4rem; font-family: var(--font-display); font-size: 1.15rem; color: var(--text); border-bottom: 1px solid var(--border); }
.mobile-menu__actions { display: flex; flex-direction: column; gap: .6rem; margin-top: 1.1rem; }

/* ---------- Hero ---------- */
.hero { position: relative; padding-top: clamp(2.5rem, 6vw, 4.5rem); padding-bottom: var(--section-y); overflow: hidden; }
.hero__aurora {
  position: absolute; inset: -10% -10% auto -10%; height: 90%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(38% 55% at 18% 12%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 70%),
    radial-gradient(34% 50% at 82% 8%, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 70%);
  filter: blur(30px); opacity: .55;
  animation: auroraDrift 16s var(--ease) infinite alternate;
}
@keyframes auroraDrift {
  from { transform: translate3d(-2%, 0, 0) scale(1); }
  to   { transform: translate3d(3%, 2%, 0) scale(1.08); }
}
.hero > .container { position: relative; z-index: 1; }
.hero__grid { display: grid; grid-template-columns: 1.25fr 0.9fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .01em;
  color: var(--muted); background: var(--surface-2); border: 1px solid var(--border);
  padding: .4rem .75rem; border-radius: 100px; margin-bottom: 1.5rem;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #33d17a; box-shadow: 0 0 0 3px rgba(51,209,122,.2); }
.hero__title {
  font-size: clamp(2.35rem, 1.4rem + 4.4vw, 4.15rem);
  font-weight: 600; letter-spacing: -0.035em; margin-bottom: 1.35rem; max-width: 15ch;
}
.grad { background: linear-gradient(100deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__lede { font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem); color: var(--muted); max-width: 52ch; margin-bottom: 2rem; }
.hero__lede strong { color: var(--text); font-weight: 600; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 2.2rem; }
.hero__stack { display: flex; flex-wrap: wrap; gap: .5rem .5rem; }
.hero__stack li {
  font-family: var(--font-mono); font-size: .78rem; color: var(--muted);
  padding: .35rem .7rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface);
}

.hero__aside { display: flex; justify-content: center; }
.portrait { position: relative; margin: 0; width: min(100%, 410px); }
.portrait__frame {
  position: relative; aspect-ratio: 5/6; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border-strong); box-shadow: var(--shadow-lg);
  background: radial-gradient(120% 120% at 30% 0%, var(--surface-3), var(--surface));
  transition: transform .5s var(--ease);
}
.portrait:hover .portrait__frame { transform: translateY(-4px); }
.portrait__frame img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.03) contrast(1.02);
}
/* accent gradient ring */
.portrait::before {
  content: ""; position: absolute; inset: -1.5px; border-radius: calc(var(--radius-lg) + 1px);
  padding: 1.5px; background: linear-gradient(150deg, var(--accent), transparent 40%, transparent 60%, var(--accent-2));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; opacity: .7; z-index: 2;
}
/* soft glow behind */
.portrait::after {
  content: ""; position: absolute; inset: 8% 8% -6%; border-radius: var(--radius-lg); z-index: -1;
  background: radial-gradient(60% 60% at 50% 100%, var(--accent-soft), transparent 70%); filter: blur(24px);
}
/* Monogram fallback when photo missing */
.portrait__mono {
  position: absolute; inset: 0; display: none; place-items: center;
  background:
    radial-gradient(130% 100% at 25% 0%, var(--surface-3), var(--surface) 60%);
}
.portrait__mono::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(127,127,127,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(127,127,127,.06) 1px, transparent 1px);
  background-size: 26px 26px;
}
.portrait__mono span {
  position: relative; font-family: var(--font-display); font-weight: 700; font-size: 5.5rem;
  letter-spacing: .04em; background: linear-gradient(140deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.portrait.is-fallback .portrait__frame img { display: none; }
.portrait.is-fallback .portrait__mono { display: grid; }

/* Floating chips */
.portrait__chip {
  position: absolute; z-index: 3; display: inline-flex; align-items: baseline; gap: .35rem;
  font-size: .74rem; color: var(--muted); font-family: var(--font-mono);
  background: color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter: blur(10px);
  border: 1px solid var(--border); padding: .45rem .7rem; border-radius: 10px; box-shadow: var(--shadow-md);
}
.portrait__chip b { font-family: var(--font-display); font-size: .95rem; color: var(--text-strong); font-weight: 600; }
.portrait__chip--tl { top: 16px; left: -18px; animation: floatY 5s var(--ease) infinite alternate; }
.portrait__chip--br { bottom: 74px; right: -16px; animation: floatY 5s var(--ease) .6s infinite alternate; }
@keyframes floatY { from { transform: translateY(0); } to { transform: translateY(-8px); } }

.portrait__badge {
  position: absolute; left: 14px; bottom: 14px; right: 14px; z-index: 3;
  display: flex; flex-direction: column; gap: 1px;
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  backdrop-filter: blur(10px); border: 1px solid var(--border);
  padding: .7rem .9rem; border-radius: 12px; box-shadow: var(--shadow-md);
}
.portrait__role { font-family: var(--font-display); font-weight: 600; font-size: .92rem; color: var(--text-strong); }
.portrait__co { font-size: .78rem; color: var(--muted); }

/* Snapshot */
.snapshot {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px;
  margin-top: clamp(2.5rem, 6vw, 4rem); background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
}
.snapshot__item { background: var(--surface); padding: 1.15rem 1.2rem; display: flex; flex-direction: column; gap: .15rem; transition: background .25s; }
.snapshot__item:hover { background: var(--surface-2); }
.snapshot__item dt { font-family: var(--font-mono); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); }
.snapshot__item dd { margin: 0; font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; color: var(--text-strong); }
.snapshot__item span { font-size: .76rem; color: var(--muted); }

/* ---------- Sections ---------- */
.section { padding-block: var(--section-y); }
.section--alt { background: linear-gradient(var(--surface), var(--surface)); border-block: 1px solid var(--border); }
.section__head { max-width: 60ch; margin-bottom: clamp(2.2rem, 5vw, 3.5rem); }
.section__kicker { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .06em; color: var(--accent); margin-bottom: .8rem; }
.section__title { font-size: clamp(1.85rem, 1.3rem + 2.4vw, 2.9rem); font-weight: 600; letter-spacing: -0.03em; }
.section__sub { margin-top: 1rem; color: var(--muted); font-size: 1.05rem; max-width: 60ch; }

/* About */
.about__grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(2rem, 5vw, 4rem); }
.about__body p { margin-bottom: 1.15rem; color: var(--muted); max-width: 62ch; }
.about__body p strong { color: var(--text); font-weight: 600; }
.about__facts { margin-top: 1.8rem; display: grid; gap: .7rem; border-top: 1px solid var(--border); padding-top: 1.5rem; }
.about__facts li { display: grid; grid-template-columns: 110px 1fr; gap: 1rem; font-size: .95rem; align-items: baseline; }
.about__facts span { font-family: var(--font-mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--faint); }

/* Timeline */
.timeline { position: relative; }
.timeline__item { position: relative; padding-left: 2.2rem; }
.timeline__marker { position: absolute; left: 6px; top: 8px; width: 13px; height: 13px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
.timeline__card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 3vw, 2.2rem); box-shadow: var(--shadow-md);
}
.timeline__top { display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; justify-content: space-between; align-items: baseline; margin-bottom: .9rem; }
.timeline__role { font-size: 1.4rem; font-weight: 600; }
.timeline__org { color: var(--accent); font-weight: 500; margin-top: .2rem; font-size: .98rem; }
.timeline__period { font-family: var(--font-mono); font-size: .82rem; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border); padding: .35rem .7rem; border-radius: 8px; white-space: nowrap; }
.timeline__context { color: var(--muted); margin-bottom: 1.4rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--border); max-width: 70ch; }
.timeline__context strong { color: var(--text); font-weight: 600; }
.timeline__points { display: grid; gap: .9rem; margin-bottom: 1.6rem; }
.timeline__points li { position: relative; padding-left: 1.5rem; color: var(--muted); max-width: 78ch; }
.timeline__points li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); }
.timeline__points strong { color: var(--text-strong); font-weight: 600; }

/* Chips */
.chips { display: flex; flex-wrap: wrap; gap: .45rem; }
.chips li { font-family: var(--font-mono); font-size: .74rem; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border); padding: .32rem .65rem; border-radius: 7px; }

/* Projects */
.projects { display: grid; gap: 1.4rem; }
.project {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(1rem, 3vw, 2.2rem);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3.5vw, 2.6rem); box-shadow: var(--shadow-md);
  transition: border-color .3s, transform .3s var(--ease);
}
.project { position: relative; overflow: hidden; }
.project::before {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease);
}
.project:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.project:hover::before { transform: scaleX(1); }
.project__index { font-family: var(--font-mono); font-size: .85rem; color: var(--accent); padding-top: .3rem; }
.project__header { margin-bottom: 1.5rem; padding-bottom: 1.3rem; border-bottom: 1px solid var(--border); }
.project__title { font-size: clamp(1.3rem, 1rem + 1.4vw, 1.75rem); font-weight: 600; }
.project__tag { font-family: var(--font-mono); font-size: .8rem; color: var(--muted); margin-top: .5rem; }
.project__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.3rem 2rem; margin-bottom: 1.6rem; }
.project__block h4 { font-family: var(--font-mono); font-size: .74rem; font-weight: 500; text-transform: uppercase; letter-spacing: .07em; color: var(--accent); margin-bottom: .5rem; }
.project__block p { color: var(--muted); font-size: .96rem; max-width: 52ch; }

/* Skills */
.skills { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 1rem; }
.skill-group { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem 1.4rem 1.5rem; transition: border-color .3s, transform .3s var(--ease); }
.skill-group:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.skill-group h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 1.1rem; display: flex; align-items: baseline; gap: .55rem; }
.skill-group__no { font-family: var(--font-mono); font-size: .72rem; color: var(--accent); font-weight: 400; }
.skill-group ul { display: flex; flex-wrap: wrap; gap: .4rem; }
.skill-group li { font-size: .82rem; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border); padding: .3rem .6rem; border-radius: 7px; }
.skill-group li em { color: var(--faint); font-style: normal; font-size: .92em; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.principle { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.6rem; transition: border-color .3s, transform .3s var(--ease); }
.principle:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.principle__icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 11px; background: var(--accent-soft); border: 1px solid var(--accent-ring); color: var(--accent); font-family: var(--font-mono); font-size: 1.15rem; margin-bottom: 1.1rem; }
.principle h3 { font-size: 1.12rem; font-weight: 600; margin-bottom: .55rem; }
.principle p { color: var(--muted); font-size: .95rem; }

/* Growth */
.growth { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.growth__col { background: var(--surface); padding: 1.5rem 1.5rem 1.7rem; }
.growth__col--now { background: var(--surface-2); }
.growth__col h4 { font-family: var(--font-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .07em; color: var(--accent); margin-bottom: 1.1rem; font-weight: 500; }
.growth__col ul { display: grid; gap: .7rem; }
.growth__col li { color: var(--muted); font-size: .95rem; padding-left: 1.3rem; position: relative; }
.growth__col li::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-family: var(--font-mono); }
.tag-inprogress { display: inline-block; font-family: var(--font-mono); font-size: .72rem; color: var(--accent); background: var(--accent-soft); border: 1px solid var(--accent-ring); padding: .1rem .45rem; border-radius: 6px; }

/* Contact */
.section--contact { background: var(--surface); border-top: 1px solid var(--border); }
.contact { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact__links { display: grid; gap: .7rem; margin-top: 2rem; }
.contact__link { display: flex; align-items: center; gap: .9rem; padding: .9rem 1.1rem; background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; transition: border-color .25s, transform .2s var(--ease), background .25s; }
.contact__link:hover { border-color: var(--accent-ring); transform: translateX(4px); background: var(--surface-3); }
.contact__ico { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-ring); font-size: .95rem; flex-shrink: 0; font-family: var(--font-mono); }
.contact__link span:last-child { display: flex; flex-direction: column; line-height: 1.35; font-weight: 500; color: var(--text); }
.contact__link small { font-family: var(--font-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .07em; color: var(--faint); font-weight: 400; }

.contact__form { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: clamp(1.4rem, 3vw, 2rem); box-shadow: var(--shadow-md); }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-family: var(--font-mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: .5rem; }
.field input, .field textarea {
  width: 100%; font-family: var(--font-body); font-size: .98rem; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: .75rem .9rem;
  transition: border-color .2s, box-shadow .2s; resize: vertical;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field.is-invalid input, .field.is-invalid textarea { border-color: #e5484d; }
.field__error { color: #ff6b6f; font-size: .8rem; margin-top: .4rem; min-height: 1em; }
.contact__form-note { color: var(--faint); font-size: .82rem; margin-top: .9rem; text-align: center; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding-block: 2.5rem; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 1.2rem 2rem; align-items: center; justify-content: space-between; }
.footer__brand { display: flex; flex-direction: column; }
.footer__name { font-family: var(--font-display); font-weight: 600; color: var(--text-strong); }
.footer__role { font-size: .84rem; color: var(--muted); }
.footer__links { display: flex; flex-wrap: wrap; gap: 1.3rem; }
.footer__links a { font-size: .9rem; color: var(--muted); transition: color .2s; }
.footer__links a:hover { color: var(--text-strong); }
.footer__copy { width: 100%; font-size: .8rem; color: var(--faint); border-top: 1px solid var(--border); padding-top: 1.3rem; margin-top: .3rem; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
  .btn, .project, .skill-group, .principle, .contact__link { transition: none !important; }
  .hero__aurora, .portrait__chip--tl, .portrait__chip--br { animation: none !important; }
  .scroll-progress { transition: none !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__aside { order: -1; justify-content: flex-start; }
  .portrait { width: min(78%, 320px); }
  .about__grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .contact { grid-template-columns: 1fr; }
  .snapshot { grid-template-columns: repeat(2, 1fr); }
  .growth { grid-template-columns: 1fr; }
  .portrait__chip--tl { left: 8px; }
  .portrait__chip--br { right: 8px; bottom: 84px; }
}
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__cta-desktop { display: none; }
  .nav__burger { display: flex; }
  .project { grid-template-columns: 1fr; }
  .project__index { display: none; }
  .project__grid { grid-template-columns: 1fr; }
}
@media (max-width: 460px) {
  .snapshot { grid-template-columns: 1fr; }
  .timeline__item { padding-left: 1.4rem; }
  .hero__cta .btn { flex: 1; justify-content: center; }
}