/* THORX — Personal Site
   Type: Space Grotesk (display) + Inter (body)
   Palette: deep navy/black + electric blue + purple */

:root {
  --bg: #07080d;
  --bg-2: #0b0d18;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8ebf5;
  --text-dim: #9aa3b8;
  --text-mute: #6b7390;
  --accent-1: #5b8cff;   /* electric blue */
  --accent-2: #a06bff;   /* purple */
  --accent-3: #62e0ff;   /* cyan glow */
  --gradient: linear-gradient(120deg, var(--accent-1) 0%, var(--accent-2) 100%);
  --gradient-soft: linear-gradient(120deg, rgba(91,140,255,0.18) 0%, rgba(160,107,255,0.18) 100%);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-glow: 0 0 0 1px rgba(91,140,255,0.25), 0 20px 60px -20px rgba(91,140,255,0.5);
  --shadow-card: 0 30px 80px -40px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.04);
  --maxw: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Ambient backdrop — fixed gradient orbs + grid */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(1200px 800px at 85% -10%, rgba(160,107,255,0.18), transparent 60%),
    radial-gradient(1000px 700px at -10% 20%, rgba(91,140,255,0.18), transparent 55%),
    radial-gradient(900px 600px at 50% 110%, rgba(98,224,255,0.10), transparent 60%),
    var(--bg);
}
.backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  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: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 100%);
  opacity: 0.7;
}
.backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, transparent 0%, var(--bg) 75%);
}

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

section { padding: 120px 0; position: relative; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "JetBrains Mono", "Space Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  backdrop-filter: blur(10px);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-3);
  box-shadow: 0 0 12px var(--accent-3);
}

h1, h2, h3, h4 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0;
  color: var(--text);
}

.section-title {
  font-size: clamp(32px, 4vw, 48px);
  margin: 16px 0 20px;
  max-width: 760px;
  text-wrap: balance;
}
.section-lede {
  color: var(--text-dim);
  font-size: 17px;
  max-width: 640px;
  margin: 0 0 56px;
}

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

/* ========== NAV ========== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 20px 0;
  transition: backdrop-filter 0.3s ease, background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 8, 13, 0.7);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
}
.brand .mark {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--gradient);
  box-shadow: 0 0 24px -4px var(--accent-1);
  position: relative;
}
.brand .mark::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 4px;
  background: var(--bg);
}
.brand .mark::before {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 2px;
  background: var(--gradient);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--text); }

/* Language switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  backdrop-filter: blur(10px);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
}
.lang-switch button {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--text-mute);
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  letter-spacing: inherit;
  transition: color 0.2s ease, background 0.2s ease;
}
.lang-switch button:hover { color: var(--text); }
.lang-switch button.is-active {
  color: #fff;
  background: var(--gradient);
  box-shadow: 0 0 12px -2px rgba(91,140,255,0.6);
}
.lang-divider {
  width: 1px;
  height: 12px;
  background: var(--border-strong);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 999px;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.3s ease;
}
.btn:hover { transform: translateY(-1px); border-color: rgba(255,255,255,0.25); }

.btn-primary {
  border-color: transparent;
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 10px 30px -10px rgba(91,140,255,0.6), 0 0 0 1px rgba(255,255,255,0.08) inset;
}
.btn-primary:hover {
  box-shadow: 0 20px 50px -10px rgba(91,140,255,0.7), 0 0 0 1px rgba(255,255,255,0.12) inset;
}
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  padding: 140px 0 80px;
  display: flex;
  align-items: center;
  position: relative;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 60px;
  align-items: center;
}
.wordmark {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: clamp(72px, 13vw, 180px);
  letter-spacing: -0.04em;
  line-height: 0.9;
  margin: 24px 0 28px;
  position: relative;
}
.wordmark .gradient-text {
  display: inline-block;
}
.wordmark .cursor {
  display: inline-block;
  width: 0.08em;
  height: 0.85em;
  background: var(--accent-3);
  box-shadow: 0 0 24px var(--accent-3);
  margin-left: 0.06em;
  vertical-align: -0.05em;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--text-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.hero-name {
  font-size: 22px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}
.hero-title {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 28px;
}
.hero-tagline {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(22px, 2.3vw, 28px);
  font-weight: 400;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: -0.01em;
  max-width: 540px;
  margin-bottom: 36px;
  text-wrap: balance;
}
.hero-cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Hero visual — abstract neural orb */
.hero-visual {
  position: relative;
  aspect-ratio: 1;
  max-width: 520px;
  margin-left: auto;
}
.orb {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(160,107,255,0.5), rgba(91,140,255,0.25) 40%, transparent 70%);
  filter: blur(20px);
  animation: float 8s ease-in-out infinite;
}
.orb-ring {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: radial-gradient(circle at 50% 50%, rgba(11,13,24,0.7) 60%, transparent 70%);
}
.orb-ring::before, .orb-ring::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px dashed rgba(255,255,255,0.08);
}
.orb-ring::before {
  inset: -40px;
  animation: spin 60s linear infinite;
}
.orb-ring::after {
  inset: -90px;
  border-style: solid;
  border-color: rgba(91,140,255,0.12);
  animation: spin 120s linear infinite reverse;
}
.orb-svg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
}
.node {
  fill: var(--accent-3);
  filter: drop-shadow(0 0 6px var(--accent-3));
}
.node-pulse {
  transform-origin: center;
  animation: pulse 2.4s ease-in-out infinite;
}
.edge {
  stroke: url(#edgeGrad);
  stroke-width: 1;
  fill: none;
  opacity: 0.55;
}
@keyframes pulse { 0%,100% { opacity: 1; r: 3; } 50% { opacity: 0.4; r: 5; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--text-mute);
  text-transform: uppercase;
  display: flex; align-items: center; gap: 10px;
}
.scroll-hint::after {
  content: "";
  width: 1px; height: 28px;
  background: linear-gradient(to bottom, var(--text-mute), transparent);
  animation: dropline 2s ease-in-out infinite;
}
@keyframes dropline {
  0% { transform: translateY(-8px); opacity: 0; }
  40% { opacity: 1; }
  100% { transform: translateY(8px); opacity: 0; }
}

/* ========== ABOUT ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.about-text p {
  font-size: 18px;
  color: var(--text);
  margin: 0 0 18px;
  max-width: 600px;
  line-height: 1.65;
}
.about-text p:last-child { color: var(--text-dim); font-size: 16px; }

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat {
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}
.stat::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 40px; height: 1px;
  background: var(--gradient);
}
.stat .k {
  font-family: "Space Grotesk", sans-serif;
  font-size: 38px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 8px;
}
.stat .v {
  font-size: 13px;
  color: var(--text-dim);
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.04em;
}

/* ========== SERVICES ========== */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  position: relative;
  padding: 32px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); }
.card:hover::before { opacity: 1; }

.card-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: var(--gradient-soft);
  border: 1px solid var(--border-strong);
  margin-bottom: 22px;
  position: relative;
}
.card-icon svg { width: 24px; height: 24px; stroke: var(--text); }
.card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.card p {
  color: var(--text-dim);
  font-size: 15px;
  margin: 0;
  line-height: 1.6;
}
.card .num {
  position: absolute;
  top: 24px; right: 24px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 0.1em;
}

/* ========== PROJECTS ========== */
.projects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.project {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  backdrop-filter: blur(12px);
  transition: transform 0.4s ease, border-color 0.3s ease;
  cursor: pointer;
}
.project:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}
.project-visual {
  aspect-ratio: 16/9;
  position: relative;
  overflow: hidden;
  background: var(--bg-2);
}
.project-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(7,8,13,0.85));
}
.viz {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(91,140,255,0.4), transparent 60%),
              radial-gradient(circle at 75% 65%, rgba(160,107,255,0.35), transparent 60%);
}
.viz-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000 40%, transparent 90%);
}
.viz svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  transition: transform 0.6s ease;
}
.project:hover .viz svg { transform: scale(1.05); }

.project-body {
  padding: 26px 28px 30px;
}
.project-tag {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.project h3 {
  font-size: 22px;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.project p {
  color: var(--text-dim);
  font-size: 14.5px;
  margin: 0 0 18px;
  line-height: 1.6;
}
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: rgba(255,255,255,0.02);
  letter-spacing: 0.04em;
}

/* ========== CONTACT ========== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 60px;
  align-items: start;
}
.contact-side h2 { margin-bottom: 20px; }
.contact-side .section-lede { margin-bottom: 32px; }
.contact-list {
  display: flex; flex-direction: column;
  gap: 14px;
  margin: 0; padding: 0; list-style: none;
}
.contact-list li {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  font-size: 14.5px;
  color: var(--text);
}
.contact-list .ico {
  width: 34px; height: 34px;
  border-radius: 9px;
  display: grid; place-items: center;
  background: var(--gradient-soft);
  border: 1px solid var(--border);
}
.contact-list .ico svg { width: 16px; height: 16px; stroke: var(--text); }
.contact-list .label {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
}

.contact-form {
  padding: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.contact-form::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 60%;
  height: 1px;
  background: var(--gradient);
}

.field {
  display: flex; flex-direction: column;
  margin-bottom: 18px;
}
.field label {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.field input,
.field textarea {
  font-family: "Inter", sans-serif;
  font-size: 15px;
  color: var(--text);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  resize: vertical;
}
.field input:focus,
.field textarea:focus {
  border-color: rgba(91,140,255,0.5);
  background: rgba(255,255,255,0.04);
  box-shadow: 0 0 0 4px rgba(91,140,255,0.1);
}
.field textarea { min-height: 130px; line-height: 1.55; }
.field input::placeholder,
.field textarea::placeholder { color: var(--text-mute); }

.submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
}
.submit-row .hint {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 0.1em;
}

/* ========== FOOTER ========== */
.footer {
  padding: 40px 0 60px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--text-mute);
  font-size: 13px;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.06em;
}

/* ========== Reveal animation ==========
   Content is visible BY DEFAULT. The animation is an opt-in enhancement
   activated by JS adding `.anim` to <html>, but only once the page is
   actually being rendered (visibilityState === "visible"). This keeps the
   site readable in hidden tabs, preloads, no-JS, prerender, etc. */
.reveal { opacity: 1; transform: none; }

html.anim .reveal:not(.in) {
  opacity: 0;
  transform: translateY(24px);
}
html.anim .reveal.in {
  animation: revealIn 0.9s cubic-bezier(.2,.7,.2,1) forwards;
}
@keyframes revealIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
html.anim .reveal.d1.in { animation-delay: 0.08s; }
html.anim .reveal.d2.in { animation-delay: 0.16s; }
html.anim .reveal.d3.in { animation-delay: 0.24s; }
html.anim .reveal.d4.in { animation-delay: 0.32s; }

/* ========== Responsive ========== */
@media (max-width: 960px) {
  section { padding: 90px 0; }
  .hero { padding: 130px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 380px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .cards-3 { grid-template-columns: 1fr; }
  .projects { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .nav-links { display: none; }
  .nav-right { gap: 10px; }
  .nav-cta { padding: 9px 14px !important; font-size: 13px; }
  .lang-switch { padding: 3px 5px; }
  .lang-switch button { padding: 5px 8px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (max-width: 520px) {
  .container { padding: 0 20px; }
  .stats { grid-template-columns: 1fr; }
  .contact-form { padding: 26px; }
  .hero-cta-row { flex-direction: column; align-items: stretch; }
  .hero-cta-row .btn { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .orb, .orb-ring::before, .orb-ring::after, .node-pulse, .cursor, .scroll-hint::after {
    animation: none !important;
  }
}