/* ===== Reset & base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0b0c0f;
  --bg-alt: #111318;
  --card: #161920;
  --border: #252a33;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --accent: #f5a623;
  --accent-dim: rgba(245, 166, 35, 0.15);
  --radius: 14px;
  --nav-h: 64px;
  --font: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

/* ===== Cursor glow ===== */
.cursor-glow {
  pointer-events: none;
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.08) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  z-index: 0;
  opacity: 0;
  transition: opacity 0.4s;
  will-change: left, top;
}
body:hover .cursor-glow { opacity: 1; }

@media (hover: none) {
  .cursor-glow { display: none; }
}

/* ===== Reveal animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }
.reveal.delay-4 { transition-delay: 0.4s; }
.reveal.delay-5 { transition-delay: 0.5s; }

/* ===== Nav ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(11, 12, 15, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(11, 12, 15, 0.92);
}

.nav-inner {
  width: min(1100px, 92%);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: -0.03em;
  transition: transform 0.2s, opacity 0.2s;
  text-decoration: none;
}
.logo:hover { text-decoration: none; transform: scale(1.02); opacity: 0.95; }
.logo-icon {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}
.logo-text { line-height: 1; }
.logo-text span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 1.75rem;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  transition: color 0.2s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  text-decoration: none;
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 2;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 3rem) 0 5rem;
  overflow: hidden;
}

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

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 12s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: rgba(245, 166, 35, 0.12);
  top: -15%; left: 20%;
  animation-delay: 0s;
}
.orb-2 {
  width: 350px; height: 350px;
  background: rgba(245, 166, 35, 0.06);
  bottom: 10%; right: 5%;
  animation-delay: -4s;
  animation-duration: 16s;
}
.orb-3 {
  width: 250px; height: 250px;
  background: rgba(100, 140, 255, 0.05);
  top: 40%; left: 5%;
  animation-delay: -8s;
  animation-duration: 14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent);
}

.hero-content { position: relative; z-index: 1; }

.hero-brand {
  margin-bottom: 1.25rem;
}
.hero-logo {
  width: 80px;
  height: 80px;
  object-fit: contain;
  filter: drop-shadow(0 6px 20px rgba(245, 166, 35, 0.2));
  animation: logoFloat 6s ease-in-out infinite;
}
@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hero-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}
.hero h1 .accent {
  color: var(--accent);
  background: linear-gradient(135deg, #f5a623, #ffc857);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  max-width: 540px;
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--accent);
  color: #0b0c0f;
  border: 1px solid var(--accent);
  box-shadow: 0 0 0 0 rgba(245, 166, 35, 0.4);
}
.btn-primary:hover {
  background: #ffb84d;
  border-color: #ffb84d;
  box-shadow: 0 8px 30px rgba(245, 166, 35, 0.3);
}
.btn-primary svg {
  transition: transform 0.25s;
}
.btn-primary:hover svg {
  transform: translateX(3px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--muted);
  background: rgba(255,255,255,0.03);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
}
.hero-meta .dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--muted);
}
.hero-meta a { color: var(--muted); transition: color 0.2s; }
.hero-meta a:hover { color: var(--accent); }

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 1;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* ===== Sections ===== */
.section {
  padding: 5.5rem 0;
  position: relative;
}
.section-alt { background: var(--bg-alt); }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.section-lead {
  color: var(--muted);
  margin-bottom: 2.5rem;
  max-width: 520px;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2.5rem;
  align-items: start;
  margin-top: 1.5rem;
}
.about-text p {
  color: var(--muted);
  margin-bottom: 1rem;
}
.about-text p:last-child { margin-bottom: 0; }

.about-cards {
  display: grid;
  gap: 1rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.stat-card:hover {
  border-color: rgba(245, 166, 35, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.stat-num {
  display: inline;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.stat-plus {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  display: block;
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

/* ===== Projects ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s;
}
.project-card:hover {
  border-color: rgba(245, 166, 35, 0.4);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4), 0 0 0 1px rgba(245, 166, 35, 0.1);
}

.project-shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(245, 166, 35, 0.06) 45%,
    rgba(245, 166, 35, 0.1) 50%,
    rgba(245, 166, 35, 0.06) 55%,
    transparent 60%
  );
  background-size: 200% 100%;
  background-position: 200% 0;
  pointer-events: none;
  transition: background-position 0.6s;
}
.project-card:hover .project-shine {
  background-position: -100% 0;
}

.project-card.featured {
  grid-column: 1 / -1;
  background: linear-gradient(145deg, var(--card) 0%, rgba(245, 166, 35, 0.05) 100%);
  border-color: rgba(245, 166, 35, 0.25);
}

.project-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.85rem;
  width: fit-content;
  transition: transform 0.25s;
}
.project-card:hover .project-badge {
  transform: scale(1.04);
}

.project-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.9;
  transition: transform 0.3s, opacity 0.3s;
}
.project-card:hover .project-icon {
  transform: scale(1.15) rotate(-5deg);
  opacity: 1;
}

.project-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  letter-spacing: -0.02em;
}

.project-tagline {
  font-size: 0.9rem;
  color: var(--accent);
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.project-desc {
  color: var(--muted);
  font-size: 0.925rem;
  flex: 1;
  margin-bottom: 1.1rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.project-tech span {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  transition: border-color 0.2s, color 0.2s;
}
.project-card:hover .project-tech span {
  border-color: rgba(245, 166, 35, 0.25);
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: auto;
}
.link-btn {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  transition: transform 0.2s;
  display: inline-flex;
  align-items: center;
}
.link-btn:hover {
  text-decoration: none;
  transform: translateX(3px);
}
.link-btn.muted { color: var(--muted); }
.link-btn.muted:hover { color: var(--accent); }

.project-note {
  font-size: 0.8rem;
  color: #c9a227;
  margin-top: 0.5rem;
}

.project-card code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.skill-group {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.skill-group:hover {
  border-color: rgba(245, 166, 35, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 35px rgba(0,0,0,0.25);
}
.skill-group h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.skill-group ul { list-style: none; }
.skill-group li {
  font-size: 0.9rem;
  color: var(--muted);
  padding: 0.2rem 0;
  transition: color 0.2s, padding-left 0.2s;
}
.skill-group:hover li { color: var(--text); }
.skill-group li:hover {
  padding-left: 4px;
  color: var(--accent);
}

/* ===== Contact ===== */
.contact-wrap { text-align: center; }

.contact-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0 1.5rem;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.75rem;
  min-width: 200px;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.08), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(245, 166, 35, 0.12);
  text-decoration: none;
}
.contact-card:hover::before { opacity: 1; }
.contact-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.35rem;
  position: relative;
}
.contact-value {
  font-weight: 600;
  color: var(--text);
  font-size: 0.95rem;
  position: relative;
}

.contact-note {
  font-size: 0.85rem;
  color: var(--muted);
  max-width: 420px;
  margin: 0 auto;
}

/* ===== Footer ===== */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.6rem;
  letter-spacing: -0.03em;
}
.footer-brand img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}
.footer-brand span span { color: var(--accent); }
.footer p {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(11, 12, 15, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem 1.25rem 1.25rem;
    gap: 0.25rem;
    animation: slideDown 0.3s ease;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.6rem 0; }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .about-grid { grid-template-columns: 1fr; }
  .project-card.featured { grid-column: auto; }

  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }
  .hero-meta .dot { display: none; }
  .scroll-hint { display: none; }
}

@media (max-width: 480px) {
  .projects-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .orb { animation: none; }
  .hero-logo { animation: none; }
  .scroll-line { animation: none; }
  .project-card, .skill-group, .stat-card, .contact-card, .btn {
    transition: none;
  }
}