/* Base styles */
:root {
  --bg: #000000;
  --text: #ffffff;
  --muted: #a5a5a5;
  --border: rgba(255, 255, 255, 0.14);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-strong: rgba(255, 255, 255, 0.07);
  --radius: 14px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 16px;
}

.section {
  padding: 6.5rem 0;
  position: relative;
}

.section-title {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  margin: 0 0 2rem;
}

.section-lead {
  margin: -1rem 0 1.5rem;
  color: var(--muted);
  max-width: 64ch;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 88%);
}

#particlesCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.5;
}

.spotlight {
  display: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background: rgba(0,0,0,0.55);
  border-bottom: 1px solid var(--border);
}

.nav {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  padding: .45rem .7rem;
  border-radius: 8px;
  font-weight: 700;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.1rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--muted);
  font-size: .95rem;
}

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

.menu-toggle {
  display: none;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .35rem .6rem;
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  text-align: center;
}

.eyebrow {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .75rem;
}

.hero h1 {
  margin: .5rem 0;
  font-size: clamp(2.2rem, 8vw, 5.2rem);
  letter-spacing: .03em;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: #d8d8d8;
  min-height: 2rem;
}

.hero-intro {
  width: min(760px, 100%);
  margin: 1rem auto 0;
  color: var(--muted);
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: .85rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: .75rem 1.2rem;
  transition: transform .25s ease, background .25s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: #fff;
  color: #000;
  font-weight: 600;
}

.btn-outline { background: transparent; color: #fff; }

.glass {
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.card {
  border-radius: var(--radius);
  padding: 1.3rem;
}

.cert-image {
  height: clamp(150px, 18vw, 200px);
  margin: -1.3rem -1.3rem 1rem;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
}

.cert-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: .45rem;
}

.cert-actions {
  margin-top: 1rem;
}

.skills-grid,
.card-grid,
.github-grid,
.projects-grid,
.contact-grid {
  display: grid;
  gap: 1rem;
}

.skills-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid, .github-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.projects-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.contact-grid { grid-template-columns: 1fr 1fr; }

.skill-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
  background: var(--glass-strong);
}

.skill-card h3 { margin-top: 0; }

.skill-card ul {
  margin: 0 0 1rem;
  padding-left: 1rem;
  color: #d2d2d2;
}

.progress-wrap span { font-size: .85rem; color: var(--muted); }

.progress {
  height: 8px;
  width: 100%;
  border-radius: 99px;
  border: 1px solid var(--border);
  overflow: hidden;
  margin-top: .4rem;
}

.progress > span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #fff, #9c9c9c);
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--glass);
}

.project-image {
  height: clamp(180px, 22vw, 240px);
  display: grid;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-body { padding: 1rem; }
.project-body ul { padding-left: 1rem; color: #d3d3d3; }

.github-projects-panel {
  margin-top: 1.5rem;
}

.github-projects-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.github-projects-header h3 {
  margin: 0 0 .35rem;
}

.status-text {
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
}

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

.repo-cards,
.stat-list,
.language-list,
.mini-list {
  display: grid;
  gap: .8rem;
}

.repo-card,
.stat-item,
.language-row,
.mini-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.repo-card,
.stat-item,
.language-row {
  padding: .9rem;
}

.repo-card h4,
.mini-item h4,
.stat-item h4 {
  margin: 0 0 .4rem;
}

.repo-card p,
.mini-item p,
.stat-item p,
.language-row p {
  margin: 0;
  color: var(--muted);
}

.repo-meta,
.repo-links,
.mini-meta {
  display: flex;
  gap: .55rem;
  flex-wrap: wrap;
}

.repo-meta {
  margin: .8rem 0;
}

.pill,
.mini-tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .25rem .6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: #ededed;
  background: rgba(255, 255, 255, 0.03);
  font-size: .8rem;
}

.repo-links a {
  font-size: .9rem;
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.language-row {
  display: grid;
  gap: .5rem;
}

.language-row .bar {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}

.language-row .bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #fff, #a1a1a1);
}

.mini-item {
  padding: .85rem;
}

.mini-item a {
  color: #fff;
}

.mini-meta {
  margin-top: .45rem;
}

.empty-state {
  padding: 1rem;
  border: 1px dashed var(--border);
  border-radius: 12px;
  color: var(--muted);
  text-align: center;
}

.timeline {
  border-left: 1px solid var(--border);
  margin-left: .5rem;
  padding-left: 1.4rem;
  display: grid;
  gap: 1rem;
}

.timeline-item {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .9rem 1rem;
  background: var(--glass);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.95rem;
  top: 1rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
}

input, textarea {
  width: 100%;
  padding: .75rem;
  margin: .35rem 0 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.02);
  color: var(--text);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.2rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links { display: flex; gap: .9rem; }

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: .25s ease;
}

.back-to-top.show { opacity: 1; pointer-events: auto; }

.progress-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #fff;
  z-index: 999;
}

.loading-screen {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 1000;
  display: grid;
  place-content: center;
  gap: .8rem;
}

.loader-text { color: #c8c8c8; text-align: center; }

.loader-bar {
  width: 240px;
  height: 4px;
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
  overflow: hidden;
}

.loader-bar span {
  display: block;
  width: 0;
  height: 100%;
  background: #fff;
  animation: loadBar 1.8s ease forwards;
}

@keyframes loadBar { to { width: 100%; } }