/* ===== Variables — Techie / Dark ===== */
:root {
  --bg: #0d1117;
  --bg-elevated: #161b22;
  --surface: #161b22;
  --surface-hover: #21262d;
  --border: rgba(56, 139, 253, 0.2);
  --border-strong: rgba(56, 139, 253, 0.4);
  --text: #e6edf3;
  --text-muted: #8b949e;
  --text-faint: #6e7681;
  --accent: #58a6ff;
  --accent-soft: #79c0ff;
  --accent-dim: rgba(56, 139, 253, 0.15);
  --accent-glow: rgba(56, 139, 253, 0.3);
  --pink-light: #388bfd;
  --pink-light-dim: rgba(56, 139, 253, 0.25);
  --rose: #2ea043;
  --rose-dim: rgba(46, 160, 67, 0.2);
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "JetBrains Mono", var(--font-sans);
  --font-mono: "JetBrains Mono", monospace;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  --transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 8px 32px rgba(56, 139, 253, 0.15), 0 0 0 1px var(--border-strong);
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --transition: 0.01s;
  }
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--accent-dim);
  color: var(--accent-soft);
}

/* ===== Background ===== */
.noise {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.02'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

.gradient-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.2;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

.gradient-orb--1 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, var(--pink-light) 0%, transparent 70%);
  top: -200px;
  right: -120px;
  opacity: 0.25;
  animation: float 20s ease-in-out infinite;
}

.gradient-orb--2 {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, var(--rose) 0%, transparent 70%);
  bottom: 15%;
  left: -100px;
  opacity: 0.2;
  animation: float 16s ease-in-out infinite reverse;
  animation-delay: -6s;
}

.gradient-orb--3 {
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  bottom: -80px;
  right: 15%;
  opacity: 0.15;
  animation: float 14s ease-in-out infinite;
  animation-delay: -3s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(24px, -24px) scale(1.02); }
  66% { transform: translate(-16px, 16px) scale(0.98); }
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.9rem 1.5rem;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.08em;
  padding: 0.35rem 0;
  transition: color var(--transition), text-shadow var(--transition);
}

.nav-logo:hover {
  color: var(--accent-soft);
  text-shadow: 0 0 24px var(--accent-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  color: var(--accent) !important;
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent-dim);
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  background: var(--accent-dim);
  color: var(--accent-soft) !important;
  border-color: var(--accent-soft);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: var(--transition);
}

/* ===== Main ===== */
main {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 1.5rem 7rem;
}

/* ===== Hero ===== */
.hero {
  padding: 4rem 0 5rem;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-greeting {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.hero-anim {
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) forwards;
}
.hero-greeting.hero-anim { animation-delay: 0s; }
.hero-title-line--1.hero-anim { animation-delay: 0.1s; }
.hero-title-line--2.hero-anim { animation-delay: 0.2s; }
.hero-tagline.hero-anim { animation-delay: 0.35s; }
.hero-roles.hero-anim { animation-delay: 0.5s; }
.hero-actions.hero-anim { animation-delay: 0.65s; }

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.wave {
  display: inline-block;
  animation: wave 2s ease-in-out infinite;
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(18deg); }
  75% { transform: rotate(-12deg); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 5.25rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 0 0 1.25rem;
}

.hero-title-line {
  display: block;
}

.hero-title-line--1 {
  background: linear-gradient(135deg, var(--text) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title-line--2 {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 50%, var(--rose) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-tagline {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  max-width: 420px;
}

.hero-tagline strong {
  color: var(--accent);
  font-weight: 600;
}

.hero-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.25rem;
}

.pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-dim);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-icon {
  font-size: 1.1rem;
  transition: transform var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #2563eb 100%);
  color: #fff;
  border: none;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px var(--accent-glow);
}

.btn-primary:hover .btn-icon {
  transform: translateX(4px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--text-faint);
  background: var(--surface);
}

/* ===== Sections ===== */
.section {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}

.section-title {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 0 0 1.75rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-title::after {
  content: "";
  flex: 1;
  max-width: 120px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.5;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.about-content {
  max-width: 620px;
}

.about-content p {
  font-size: 1.08rem;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
  line-height: 1.75;
}

.about-content p:last-child {
  margin-bottom: 0;
}

.about-content strong {
  color: var(--text);
  font-weight: 600;
}

/* ===== Connect grid ===== */
.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.5rem 1.6rem;
  background: rgba(22, 27, 34, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dim) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  background: var(--surface-hover);
}

.card:hover::before {
  opacity: 1;
}

.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.card-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.25rem;
  transition: background var(--transition), transform var(--transition);
}

.card:hover .card-icon-wrap {
  background: var(--accent-dim);
  transform: scale(1.05);
}

.card-icon {
  font-size: 1.1rem;
  color: var(--accent);
}

.card-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}

.card-handle {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  transition: color var(--transition);
}

.card:hover .card-handle {
  color: var(--accent);
}

.card-arrow {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.25rem;
  color: var(--text-faint);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity var(--transition), transform var(--transition), color var(--transition);
}

.card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--accent);
}

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
}

.footer p {
  margin: 0.35rem 0;
  font-size: 0.9rem;
  color: var(--text-faint);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition), text-decoration var(--transition);
}

.footer a:hover {
  color: var(--accent-soft);
  text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 700px) {
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 1rem 1.5rem;
    background: rgba(22, 27, 34, 0.98);
    border-bottom: 1px solid var(--border);
  }

  .nav.open .nav-links li {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav.open .nav-links li:last-child {
    border-bottom: none;
  }

  .hero {
    min-height: auto;
    padding: 3rem 0 4rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
    width: 100%;
  }

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

@media (prefers-reduced-motion: reduce) {
  .gradient-orb {
    animation: none;
  }
  .hero-title-line--2 {
    animation: none;
  }
  .wave {
    animation: none;
  }
  .hero-anim {
    animation: none;
    opacity: 1;
  }
}