/* Modern, dependency-free landing page styling */

:root {
  --font: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";

  /* Light (default). If the user prefers dark mode, we override via prefers-color-scheme. */
  --bg: #f6f7fb;
  --bg-elev: rgba(0, 0, 0, 0.04);
  --panel: rgba(255, 255, 255, 0.65);
  --text: rgba(10, 12, 20, 0.92);
  --muted: rgba(10, 12, 20, 0.62);
  --border: rgba(10, 12, 20, 0.10);
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.15);

  --primary: #8b5cf6;
  --primary-2: #22d3ee;
  --good: #22c55e;

  --radius: 16px;
  --radius-sm: 12px;
  --container: 1120px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #070a12;
    --bg-elev: rgba(255, 255, 255, 0.06);
    --panel: rgba(255, 255, 255, 0.08);
    --text: rgba(255, 255, 255, 0.92);
    --muted: rgba(255, 255, 255, 0.65);
    --border: rgba(255, 255, 255, 0.12);
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
    color-scheme: dark;
  }
}

/* Manual override (button sets html[data-theme]). */
html[data-theme="dark"] {
  --bg: #070a12;
  --bg-elev: rgba(255, 255, 255, 0.06);
  --panel: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.65);
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #f6f7fb;
  --bg-elev: rgba(0, 0, 0, 0.04);
  --panel: rgba(255, 255, 255, 0.65);
  --text: rgba(10, 12, 20, 0.92);
  --muted: rgba(10, 12, 20, 0.62);
  --border: rgba(10, 12, 20, 0.10);
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.15);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  -webkit-text-size-adjust: 100%;
  background: var(--bg);
}

body {
  margin: 0;
  font-family: var(--font);
  /* Use a fixed background layer to avoid iOS/Safari "cut off" backgrounds while scrolling. */
  background: transparent;
  color: var(--text);
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
  isolation: isolate;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(1000px 600px at 80% -10%, rgba(139, 92, 246, 0.22), transparent 60%),
    radial-gradient(900px 700px at 10% 10%, rgba(34, 211, 238, 0.18), transparent 60%),
    var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
}

a:hover {
  opacity: 0.92;
}

p,
li {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  transform: translateY(-200%);
  transition: transform 120ms ease;
  z-index: 9999;
}

.skip-link:focus {
  transform: translateY(0);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.12));
  border-bottom: 1px solid var(--border);
}

html[data-theme="light"] .site-header {
  background: linear-gradient(to bottom, rgba(246, 247, 251, 0.85), rgba(246, 247, 251, 0.60));
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.nav {
  display: none;
  gap: 18px;
  color: var(--muted);
  font-weight: 500;
}

/* Mobile nav (opened via JS by adding body.nav-open). */
body.nav-open .nav {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  gap: 6px;
  padding: 10px 20px 14px;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

html[data-theme="light"] body.nav-open .nav {
  background: rgba(246, 247, 251, 0.78);
}

.nav a {
  padding: 10px 10px;
  border-radius: 12px;
}

body.nav-open .nav a {
  display: block;
}

.nav a:hover {
  color: var(--text);
  background: var(--bg-elev);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  border-radius: 999px;
  cursor: pointer;
  color: var(--muted);
}

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

.nav-toggle-icon {
  width: 18px;
  height: 18px;
  display: inline-block;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 6h16M4 12h16M4 18h16' stroke='%23000' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
}

/* Swap icon to X when open */
body.nav-open .nav-toggle-icon {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 6l12 12M18 6L6 18' stroke='%23000' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") center / contain no-repeat;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  border-radius: 999px;
  padding: 10px 12px;
  cursor: pointer;
  color: var(--muted);
}

.theme-toggle:hover {
  color: var(--text);
}

.theme-toggle-icon {
  width: 16px;
  height: 16px;
  display: inline-block;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M21.64 13a1 1 0 0 0-1.05-.14 8.05 8.05 0 0 1-3.37.73A8.15 8.15 0 0 1 9.08 5.49a8.59 8.59 0 0 1 .25-2A1 1 0 0 0 8 2.36 10.14 10.14 0 1 0 22 14a1 1 0 0 0-.36-1z'/%3E%3C/svg%3E") center / contain no-repeat;
}

html[data-theme="light"] .theme-toggle-icon {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.76 4.84l-1.8-1.79-1.41 1.41 1.79 1.8zM1 11h3v2H1zm10-10h2v3h-2zm9.66 3.46l-1.41-1.41-1.8 1.79 1.41 1.41zM17.24 19.16l1.8 1.79 1.41-1.41-1.79-1.8zM20 11h3v2h-3zM11 20h2v3h-2zm-7.66.54l1.41 1.41 1.8-1.79-1.41-1.41zM12 6a6 6 0 1 0 0 12 6 6 0 0 0 0-12z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.theme-toggle-label {
  display: none;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.button-primary {
  border-color: rgba(139, 92, 246, 0.35);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.95), rgba(34, 211, 238, 0.78));
  box-shadow: 0 18px 45px rgba(139, 92, 246, 0.18);
  color: rgba(255, 255, 255, 0.95);
}

.button-primary:hover {
  filter: brightness(1.04);
}

.button-ghost {
  background: var(--bg-elev);
  color: var(--text);
}

/* Hero */
.hero {
  position: relative;
  overflow: clip;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 54px 0 26px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.blob {
  position: absolute;
  filter: blur(40px);
  opacity: 0.55;
  transform: translateZ(0);
}

.blob-a {
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(139, 92, 246, 0.9), transparent 60%);
  top: -200px;
  left: -120px;
}

.blob-b {
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle at 60% 50%, rgba(34, 211, 238, 0.75), transparent 60%);
  top: -220px;
  right: -180px;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.35;
  mask-image: radial-gradient(65% 60% at 50% 0%, black 30%, transparent 75%);
}

html[data-theme="light"] .grid-overlay {
  background-image: linear-gradient(to right, rgba(10, 12, 20, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10, 12, 20, 0.06) 1px, transparent 1px);
}

.kicker {
  color: var(--muted);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

h1 {
  font-size: clamp(2.15rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
  margin: 0 0 14px;
}

.lede {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 55ch;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 10px 0 18px;
}

.hero-badges {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 12px;
}

.badge {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.badge-title {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.badge-value {
  display: block;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.04));
  border-radius: calc(var(--radius) + 4px);
  padding: 14px;
  box-shadow: var(--shadow);
}

html[data-theme="light"] .hero-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.70));
}

.terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.35);
}

html[data-theme="light"] .terminal {
  background: rgba(10, 12, 20, 0.06);
}

.terminal-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red {
  background: #ef4444;
}

.dot-yellow {
  background: #f59e0b;
}

.dot-green {
  background: #22c55e;
}

.terminal-title {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.85rem;
}

.terminal-body {
  margin: 0;
  padding: 14px 14px 16px;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

.muted {
  color: var(--muted);
}

.mini-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 12px;
}

.mini-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  padding: 12px;
}

.mini-k {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.mini-v {
  display: block;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Sections */
.section {
  padding: 52px 0;
}

.section-alt {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.03), transparent);
}

html[data-theme="light"] .section-alt {
  background: linear-gradient(180deg, transparent, rgba(10, 12, 20, 0.03), transparent);
}

.section-head {
  display: grid;
  gap: 6px;
  margin-bottom: 18px;
}

h2 {
  margin: 0;
  letter-spacing: -0.03em;
  line-height: 1.2;
  font-size: clamp(1.45rem, 2.6vw, 2rem);
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: var(--bg-elev);
}

.card:hover {
  transform: translateY(-2px);
  transition: transform 160ms ease;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.82rem;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(34, 211, 238, 0.12));
}

.card-links {
  display: inline-flex;
  gap: 10px;
  color: var(--muted);
}

.card-links a.demo-link {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.card-links a.demo-link:hover {
  opacity: 0.92;
}

.card h3 {
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tags li {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.12);
  color: var(--text);
  font-weight: 600;
  font-size: 0.85rem;
}

html[data-theme="light"] .tags li {
  background: rgba(255, 255, 255, 0.55);
}

/* Split */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
}

.skill-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 18px;
}

.skill {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--bg-elev);
}

.skill h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.skill p {
  margin: 0;
  color: var(--muted);
}

.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
}

.stack {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}

.stack li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--border);
}

.stack li:first-child {
  border-top: none;
}

.stack span:first-child {
  color: var(--muted);
  font-weight: 600;
}

.panel-cta {
  margin-top: 14px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
}

.avatar {
  width: 92px;
  height: 92px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.35), rgba(34, 211, 238, 0.22));
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
}

.avatar-inner {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-weight: 800;
  letter-spacing: -0.03em;
}

html[data-theme="light"] .avatar-inner {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(10, 12, 20, 0.08);
}

.about-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

/* CTA */
.section-cta {
  padding-bottom: 70px;
}

.cta {
  border: 1px solid rgba(139, 92, 246, 0.28);
  border-radius: calc(var(--radius) + 6px);
  padding: 22px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(34, 211, 238, 0.10));
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.fineprint {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.18);
}

html[data-theme="light"] .site-footer {
  background: rgba(255, 255, 255, 0.65);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  row-gap: 8px;
  gap: 14px;
  color: var(--muted);
}

/* Embedded demos */
.demo-frame {
  width: 100%;
  height: min(76vh, 820px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

/* Experience bullets */
.bullets {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.bullets li {
  margin: 6px 0;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(10px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 500ms ease, transform 520ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

/* Responsive */
@media (max-width: 700px) {
  .mini-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 440px) {
  .brand-text {
    display: none;
  }

  .mini-cards {
    grid-template-columns: 1fr;
  }

  /* Avoid horizontal scrolling caused by long terminal lines. */
  .terminal-body {
    font-size: 0.82rem;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }
}

@media (min-width: 820px) {
  .nav-toggle {
    display: none;
  }

  .nav {
    display: inline-flex;
    position: static;
    flex-direction: row;
    padding: 0;
    background: transparent;
    border: none;
    backdrop-filter: none;
  }

  body.nav-open .nav {
    display: inline-flex;
  }

  .theme-toggle-label {
    display: inline;
    font-size: 0.9rem;
  }

  .hero-inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    padding: 76px 0 26px;
  }

  .hero-badges {
    grid-template-columns: 1fr 1fr;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .cards.cards-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .split {
    grid-template-columns: 1.15fr 0.85fr;
  }

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

  .about {
    grid-template-columns: 120px 1fr;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.is-visible,
  .card:hover {
    transition: none !important;
    transform: none !important;
  }
}