@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #0b1220;
  --bg2: #090f1a;
  --panel: rgba(255, 255, 255, 0.04);
  --panel2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.70);
  --muted2: rgba(255, 255, 255, 0.55);
  --accent: #ff6a3d;
  --accent2: #ff8a5a;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.50);
  --radius: 16px;
  --radius-sm: 12px;
}

html, body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  width: 100%;
  min-height: 100vh;
  padding: 0;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 80% 10%, rgba(255, 106, 61, 0.22), transparent 60%),
    radial-gradient(900px 600px at 10% 20%, rgba(120, 200, 255, 0.14), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}

* { box-sizing: border-box; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--text); }

.main {
  min-height: 100vh;
}

.container {
  width: min(1120px, calc(100% - 48px));
  margin-left: auto;
  margin-right: auto;
}

.page {
  padding-bottom: 84px;
}

.page-projects,
.page-contact {
  padding-top: 64px;
}

.grid {
  display: grid;
  gap: 18px;
}

.card {
  background: linear-gradient(180deg, var(--panel), var(--panel2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.card-title {
  margin: 0 0 10px 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.card-desc {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 12, 20, 0.55);
  backdrop-filter: blur(14px);
}

.header-inner {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.2px;
  font-size: 1.05rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.16);
}

.nav-toggle-icon {
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
}

.nav-mobile {
  display: none;
}

.nav-item a {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid transparent;
  transition: all 120ms ease;
}

.nav-item a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.10);
}

.nav-item.active a {
  color: var(--text);
  background: rgba(255, 106, 61, 0.12);
  border-color: rgba(255, 106, 61, 0.40);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  font-weight: 700;
  letter-spacing: 0.2px;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
  user-select: none;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-color: rgba(255, 106, 61, 0.65);
  color: #0b1220;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.btn-small {
  height: 38px;
  padding: 0 14px;
  font-size: 0.95rem;
}

.section {
  padding-top: 64px;
}

.section-title {
  margin: 0 0 14px 0;
  font-size: 1.6rem;
  font-weight: 800;
}

.section-desc {
  margin: 0 0 18px 0;
  color: var(--muted);
  line-height: 1.7;
}

.page-title {
  margin: 0 0 10px 0;
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 900;
}

.page-subtitle {
  margin: 0 0 22px 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero {
  padding-top: 78px;
  padding-bottom: 32px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  color: var(--muted2);
  font-weight: 700;
  letter-spacing: 0.2px;
  margin-bottom: 12px;
}

.hero-title {
  margin: 0;
  font-size: clamp(2.4rem, 4.3vw, 3.8rem);
  font-weight: 900;
  line-height: 1.05;
}

.accent {
  color: var(--accent2);
}

.hero-subtitle {
  margin: 14px 0 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.hero-links {
  display: flex;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.link {
  color: var(--muted2);
  font-weight: 600;
}

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

.hero-right {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 240px;
}

.hero-avatar {
  width: 150px;
  height: 150px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  position: relative;
  z-index: 2;
}

.hero-ring {
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 999px;
  border: 2px solid rgba(255, 106, 61, 0.42);
  box-shadow: 0 0 0 10px rgba(255, 106, 61, 0.08);
  filter: blur(0px);
  opacity: 0.9;
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.stat-value {
  font-weight: 900;
  font-size: 1.7rem;
  color: var(--text);
}

.stat-label {
  color: var(--muted2);
  margin-top: 6px;
}

.services-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.projects-preview-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.projects-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.tag {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
}

.tag-stars {
  border-color: rgba(255, 106, 61, 0.30);
  background: rgba(255, 106, 61, 0.10);
  color: rgba(255, 255, 255, 0.86);
}

.badge {
  font-size: 0.82rem;
  font-weight: 900;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 106, 61, 0.35);
  background: rgba(255, 106, 61, 0.12);
  color: rgba(255, 255, 255, 0.92);
}

.project-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.loading {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
}

.loading-spinner {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-top-color: rgba(255, 106, 61, 0.85);
  animation: spin 0.9s linear infinite;
}

.loading-label {
  color: var(--muted);
  font-weight: 700;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.md-wrap {
  margin-top: 14px;
}

.markdown {
  display: grid;
  gap: 10px;
}

.md-h2, .md-h3, .md-h4 {
  margin: 10px 0 0 0;
  font-weight: 900;
}

.md-h2 { font-size: 1.25rem; }
.md-h3 { font-size: 1.12rem; }
.md-h4 { font-size: 1.02rem; }

.md-p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.md-ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.md-pre {
  margin: 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(0, 0, 0, 0.22);
  overflow: auto;
}

.md-pre code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.86);
}

.screenshot-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.screenshot {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.02);
}

.screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

.card-actions {
  margin-top: 14px;
}

.section-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.section-cta {
  padding-top: 72px;
}

.cta {
  background: linear-gradient(135deg, rgba(255, 106, 61, 0.15), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 106, 61, 0.22);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.cta-title {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 900;
}

.cta-desc {
  margin: 8px 0 0 0;
  color: var(--muted);
}

.breadcrumb {
  display: inline-flex;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--muted2);
}

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

.project-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.project-detail-grid {
  grid-template-columns: 1.3fr 0.7fr;
  margin-top: 18px;
}

.about-grid {
  grid-template-columns: 1.2fr 0.8fr;
}

.experience-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
  padding-left: 18px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: rgba(255, 255, 255, 0.10);
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
  align-items: start;
}

.timeline-dot {
  width: 14px;
  height: 14px;
  margin-top: 18px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(255, 106, 61, 0.12);
}

.timeline-card {
  position: sticky;
  top: 92px;
}

.timeline-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.timeline-date {
  color: var(--muted2);
  font-weight: 700;
  font-size: 0.92rem;
}

.sticky-0 { top: 92px; }
.sticky-1 { top: 104px; }
.sticky-2 { top: 116px; }
.sticky-3 { top: 128px; }
.sticky-4 { top: 140px; }
.sticky-5 { top: 152px; }
.sticky-6 { top: 164px; }
.sticky-7 { top: 176px; }
.sticky-8 { top: 188px; }
.sticky-9 { top: 200px; }
.sticky-10 { top: 212px; }
.sticky-11 { top: 224px; }

.contact-grid {
  grid-template-columns: 0.9fr 1.1fr;
}

.contact-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.contact-row:last-child { border-bottom: none; }

.contact-label {
  color: var(--muted2);
  font-weight: 700;
}

.form {
  display: grid;
  gap: 10px;
}

label {
  font-weight: 700;
  color: var(--muted2);
}

input, textarea {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.20);
  color: var(--text);
  padding: 12px;
  font-family: inherit;
}

textarea { min-height: 120px; resize: vertical; }

input:disabled, textarea:disabled {
  opacity: 0.65;
}

.form-actions {
  margin-top: 8px;
}

@media (max-width: 920px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-right { min-height: 180px; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .projects-preview-grid { grid-template-columns: 1fr; }
  .project-detail-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .experience-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta { flex-direction: column; align-items: flex-start; }

  .timeline { padding-left: 14px; }
  .timeline::before { left: 4px; }
  .timeline-item { grid-template-columns: 20px 1fr; gap: 10px; }
  .timeline-dot { width: 12px; height: 12px; }
  .timeline-card { top: 82px; }
  .sticky-0, .sticky-1, .sticky-2, .sticky-3, .sticky-4, .sticky-5, .sticky-6, .sticky-7, .sticky-8, .sticky-9, .sticky-10, .sticky-11 { top: 82px; }

  .header-inner {
    height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-desktop {
    display: none;
  }

  .nav-mobile {
    display: grid;
    gap: 10px;
    padding: 12px 0 16px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(8, 12, 20, 0.55);
    backdrop-filter: blur(14px);
  }

  .nav-mobile:not(.open) {
    display: none;
  }

  .nav-mobile .container {
    width: min(1120px, calc(100% - 48px));
    margin-left: auto;
    margin-right: auto;
  }

  .nav-mobile .nav-item a {
    height: 44px;
    width: 100%;
    justify-content: flex-start;
    padding: 0 14px;
  }

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