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

:root {
  --bg: #0f1115;
  --bg-elevated: #181b21;
  --bg-card: #1c1f27;
  --border: #2a2e38;
  --text: #e0e2e8;
  --text-muted: #8a8f9d;
  --accent: #4a9eff;
  --accent-dim: rgba(74, 158, 255, 0.12);
  --accent-glow: rgba(74, 158, 255, 0.25);
  --orange: #f0913a;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #7ab8ff;
}

/* ===== Grid Overlay ===== */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(74, 158, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 158, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ===== Container ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 3rem;
  background: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.25s;
}

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

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 3rem 4rem;
  z-index: 1;
}

.hero-inner {
  max-width: 1100px;
  width: 100%;
  position: relative;
}

.hero-content {
  max-width: 720px;
}

.hero-tag {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-name {
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 420px;
  margin-bottom: 2rem;
}

.hero-line {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
}

.hero-badge {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 180px;
  height: 180px;
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.15;
}

.hero-badge span {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
}

/* ===== Sections ===== */
.section {
  position: relative;
  z-index: 1;
  padding: 6rem 3rem;
  border-top: 1px solid var(--border);
}

.section > .section-label,
.section > .section-content {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.label-number {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}

.label-text {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.label-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-content {
  max-width: 1100px;
  width: 100%;
}

.section-content h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1.5rem;
}

.section-content p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.section-content p strong {
  color: var(--text);
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -2.5rem;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  z-index: 1;
}

.timeline-item:first-child .timeline-marker {
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.3s, transform 0.3s;
}

.timeline-card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.timeline-date {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.timeline-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0.5rem 0 0.25rem;
}

.timeline-company {
  font-weight: 600;
  color: var(--text-muted) !important;
  font-size: 0.9rem !important;
  margin-bottom: 0.75rem !important;
}

.timeline-card p:last-child {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ===== Projects Grid ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem 1.5rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  color: var(--text);
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  color: var(--text);
}

.project-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  filter: grayscale(0.5);
}

.project-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  flex: 1;
}

.project-link {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-top: 1rem;
}

/* ===== Contact ===== */
.contact-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.contact-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.3s;
}

.contact-item:hover {
  border-color: var(--accent);
}

.contact-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}

.contact-item a,
.contact-item span {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.contact-item a:hover {
  color: var(--text);
}

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 2rem 3rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav {
    padding: 1rem 1.5rem;
  }

  .nav-links {
    gap: 1.5rem;
  }

  .nav-links a {
    font-size: 0.75rem;
  }

  .hero {
    padding: 7rem 1.5rem 3rem;
  }

  .hero-badge {
    display: none;
  }

  .section {
    padding: 4rem 1.5rem;
  }

  .footer {
    padding: 1.5rem;
  }

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

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

@media (max-width: 480px) {
  .nav-links {
    gap: 1rem;
  }

  .hero-name {
    font-size: 3rem;
  }
}