/* =========================
   Base + Theme
========================= */
:root {
  --bg: #0b0f14;
  --bg-elev: rgba(255, 255, 255, 0.04);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);

  --accent: #7c8cff;
  --accent-2: #2ee59d;

  --radius: 18px;
  --radius-sm: 12px;

  --container: 1100px;

  --font:
    ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  --mono:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;

  --h1: clamp(2rem, 3vw, 3.2rem);
  --h2: clamp(1.4rem, 2vw, 2rem);
  --h3: 1.05rem;
  --p: 1rem;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 20px;
  --space-5: 28px;
  --space-6: 40px;
  --space-7: 56px;
  --space-8: 80px;

  --focus: 0 0 0 3px rgba(124, 140, 255, 0.35);
}

html[data-theme="light"] {
  --bg: #f6f7fb;
  --bg-elev: rgba(0, 0, 0, 0.03);
  --text: rgba(10, 12, 16, 0.92);
  --muted: rgba(10, 12, 16, 0.66);
  --border: rgba(10, 12, 16, 0.12);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.08);

  --accent: #4657ff;
  --accent-2: #0dbb79;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(
      1200px 900px at 15% -10%,
      rgba(124, 140, 255, 0.18),
      transparent 60%
    ),
    radial-gradient(
      900px 700px at 90% 0%,
      rgba(46, 229, 157, 0.12),
      transparent 55%
    ),
    var(--bg);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
strong {
  color: var(--text);
}

/* Accessibility */
.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 9999;
}
.skip-link:focus {
  left: 12px;
  outline: none;
  box-shadow: var(--focus);
}

/* =========================
   Layout
========================= */
.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.section {
  padding: var(--space-8) 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.section-title {
  font-size: var(--h2);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

.split {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: var(--space-6);
  align-items: start;
}

.grid {
  display: grid;
  gap: var(--space-4);
}

/* =========================
   Header
========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
}
.site-header[data-blur] {
  background: color-mix(in srgb, var(--bg) 70%, transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  background: linear-gradient(
    135deg,
    rgba(124, 140, 255, 0.35),
    rgba(46, 229, 157, 0.22)
  );
  border: 1px solid var(--border);
}

.nav {
  display: flex;
  gap: 16px;
  align-items: center;
}
.nav-link {
  color: var(--muted);
  font-size: 0.95rem;
  padding: 8px 10px;
  border-radius: 10px;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}
.nav-link:hover {
  color: var(--text);
  background: var(--bg-elev);
}

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

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
  transition:
    transform 0.15s ease,
    background 0.15s ease;
}
.icon-btn:hover {
  transform: translateY(-1px);
}
.icon-btn:focus {
  outline: none;
  box-shadow: var(--focus);
}

/* =========================
   Hero
========================= */
.hero {
  padding: var(--space-8) 0 var(--space-7);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-6);
  align-items: start;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.92rem;
}
.headline {
  font-size: var(--h1);
  margin: 0 0 12px;
  letter-spacing: -0.03em;
  line-height: 1.12;
}
.subhead {
  margin: 0 0 var(--space-5);
  color: var(--muted);
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  max-width: 62ch;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.hero-links {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}
.dot {
  opacity: 0.6;
}

.hero-badges {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text);
}

/* Right card */
.hero-card .card {
  position: relative;
  overflow: hidden;
}
.hero-card .card::before {
  content: "";
  position: absolute;
  inset: -60px;
  background:
    radial-gradient(
      450px 350px at 30% 20%,
      rgba(124, 140, 255, 0.18),
      transparent 60%
    ),
    radial-gradient(
      400px 300px at 80% 0%,
      rgba(46, 229, 157, 0.12),
      transparent 55%
    );
  filter: blur(8px);
  pointer-events: none;
}

/* =========================
   Components
========================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition:
    transform 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease;
  user-select: none;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:focus {
  outline: none;
  box-shadow: var(--focus);
}

.btn-primary {
  background: linear-gradient(
    135deg,
    rgba(124, 140, 255, 0.95),
    rgba(46, 229, 157, 0.35)
  );
  border-color: rgba(124, 140, 255, 0.5);
}
.btn-primary:hover {
  background: linear-gradient(
    135deg,
    rgba(124, 140, 255, 1),
    rgba(46, 229, 157, 0.45)
  );
}

.btn-secondary {
  background: var(--bg-elev);
}
.btn-tertiary {
  width: 100%;
  justify-content: center;
}

.text-link {
  color: color-mix(in srgb, var(--accent) 78%, var(--text));
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.15s ease,
    color 0.15s ease;
}
.text-link:hover {
  border-color: color-mix(in srgb, var(--accent) 60%, transparent);
  color: color-mix(in srgb, var(--accent) 92%, var(--text));
}

.card {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-radius: var(--radius);
  padding: var(--space-5);
  box-shadow: var(--shadow);
}
.card-title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.card-text {
  margin: 0 0 var(--space-4);
  color: var(--muted);
}

.card-metrics {
  display: grid;
  gap: 10px;
  margin: 0 0 var(--space-4);
}
.metric {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.metric:first-child {
  border-top: none;
}
.metric dt {
  color: var(--muted);
  font-size: 0.92rem;
}
.metric dd {
  margin: 0;
  color: var(--text);
  font-weight: 600;
}

.prose p {
  margin: 0 0 12px;
  color: var(--muted);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.checklist li {
  position: relative;
  padding-left: 26px;
  color: var(--muted);
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: color-mix(in srgb, var(--accent-2) 65%, var(--text));
  font-weight: 900;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li {
  margin: 6px 0;
}

/* =========================
   Projects
========================= */
.section-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chip {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease,
    transform 0.15s ease;
  font-weight: 650;
  font-size: 0.9rem;
}
.chip:hover {
  transform: translateY(-1px);
  color: var(--text);
}
.chip-active {
  color: var(--text);
  border-color: rgba(124, 140, 255, 0.45);
  background: color-mix(in srgb, var(--accent) 14%, var(--bg-elev));
}

.projects-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.project-card {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-radius: var(--radius);
  overflow: hidden;
  transition:
    transform 0.15s ease,
    border-color 0.15s ease,
    background 0.15s ease;
  min-height: 100%;
}
.project-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
}

.project-media {
  display: block;
  padding: 14px;
}
.project-thumb {
  height: 160px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(
      135deg,
      rgba(124, 140, 255, 0.18),
      rgba(46, 229, 157, 0.08)
    ),
    radial-gradient(
      600px 200px at 30% 0%,
      rgba(255, 255, 255, 0.08),
      transparent 60%
    ),
    rgba(255, 255, 255, 0.03);
}

.project-body {
  padding: 0 18px 18px;
}
.project-header {
  margin-bottom: 12px;
}
.project-title {
  margin: 4px 0 8px;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}
.project-desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.tags {
  list-style: none;
  padding: 0;
  margin: 12px 0 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 6px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
}

.project-links {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
}

.muted-note {
  margin: var(--space-4) 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* =========================
   Skills
========================= */
.skills-grid {
  grid-template-columns: repeat(4, 1fr);
}

/* =========================
   Contact
========================= */
.contact {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-6);
  align-items: start;
}
.contact-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: var(--space-4);
}
.contact-meta {
  margin-top: var(--space-4);
  color: var(--muted);
}

/* =========================
   Footer
========================= */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 26px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.muted {
  color: var(--muted);
}

/* =========================
   Responsive
========================= */
@media (max-width: 980px) {
  .nav {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .split {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact {
    grid-template-columns: 1fr;
  }
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .header-actions .btn {
    display: none;
  }
}

/* =========================
   Reduced motion
========================= */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .btn,
  .chip,
  .project-card,
  .nav-link,
  .icon-btn,
  .text-link {
    transition: none !important;
  }
  .btn:hover,
  .chip:hover,
  .project-card:hover,
  .icon-btn:hover {
    transform: none !important;
  }
}

#copyEmail.copied {
  border-color: rgba(46, 229, 157, 0.45);
  background: color-mix(in srgb, var(--accent-2) 18%, var(--bg-elev));
}
.contact-form{
  margin-top: 18px;
  max-width: 560px;
}

.form-row{
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.label{
  font-size: 0.95rem;
  color: var(--muted);
}

.input, .textarea{
  width: 100%;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  outline: none;
}

.input:focus, .textarea:focus{
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent);
}

.success-message {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 12px 16px;
  border-radius: 12px;
  margin-bottom: 18px;
  font-size: 0.95rem;
}

.icon-links svg {
  opacity: 0.9;
}

.icon-links a {
  margin-left: 2px;
}