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

/* Custom properties */
:root {
  --bg: #0D0D0D;
  --bg-surface: #111111;
  --bg-surface-2: #161616;
  --border: #1F1F1F;
  --border-hover: #333333;
  --text-primary: #E8E8E8;
  --text-secondary: #888888;
  --accent-green: #5B8AF0;
  --accent-blue: #56CFB2;
  --accent-orange: #F6A20E;
  --accent-purple: #B06CF6;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 10px;
  --max-width: 1100px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 6px; }

/* Base */
html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--accent-green);
  letter-spacing: -0.02em;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

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

.nav-active { color: var(--text-primary); }

/* Highlighted text */
.hl {
  color: var(--accent-green);
  font-weight: 500;
}

/* Layout */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 32px 64px;
  flex: 1;
  width: 100%;
}

/* Hero */
.hero {
  margin-bottom: 96px;
}

.hero-pre {
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent-green);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-role {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.hero-status {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 32px;
}

.hero-status li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  flex-shrink: 0;
}

/* Buttons */
.hero-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 6px;
  transition: all 0.15s ease;
  letter-spacing: 0.01em;
  cursor: pointer;
}

.btn-outline {
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* Section */
.section { margin-bottom: 88px; }

.section-label {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 56px;
  align-items: start;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

.about-photo-wrapper {
  position: sticky;
  top: 88px;
}

.about-photo {
  width: 100%;
  border-radius: 12px;
  display: block;
  border: 1px solid var(--border-hover);
  object-fit: cover;
  aspect-ratio: 3/4;
}

/* Featured project */
.project-feature {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.project-feature-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.project-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Browser mockup */
.dashboard-preview-link { display: block; }

.browser-mockup {
  border: 1px solid var(--border-hover);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.dashboard-preview-link:hover .browser-mockup {
  border-color: var(--accent-green);
}

.browser-bar {
  background: #1A1A1A;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border-hover);
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.d-red    { background: #FF5F57; }
.d-yellow { background: #FEBC2E; }
.d-green  { background: #28C840; }

.browser-url {
  margin-left: 10px;
  font-size: 0.6875rem;
  color: var(--text-secondary);
  font-family: monospace;
}

.dashboard-preview {
  display: block;
  width: 100%;
  height: auto;
}

/* Project description */
.project-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Insight callout */
.insight-callout {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-hover);
  border-left: 3px solid var(--accent-green);
  border-radius: 8px;
  padding: 24px 28px;
}

.insight-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-green);
  margin-bottom: 10px;
}

.insight-stat {
  font-size: 2.25rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 12px;
}

.insight-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 620px;
}

/* Tags */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.tag-green  { background: rgba(91, 138, 240, 0.12); color: var(--accent-green); }
.tag-blue   { background: rgba(86, 207, 178, 0.12); color: var(--accent-blue); }
.tag-orange { background: rgba(246, 162, 14, 0.12); color: var(--accent-orange); }
.tag-purple { background: rgba(176, 108, 246, 0.12); color: var(--accent-purple); }

/* Article grid */
.article-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  gap: 8px;
  transition: border-color 0.2s ease, transform 0.15s ease;
  cursor: pointer;
}

.article-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.article-date {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.article-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  flex: 1;
}

.article-card:hover h3 { color: #FFFFFF; }

.article-read {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 4px;
  transition: color 0.15s ease;
}

.article-card:hover .article-read { color: var(--accent-green); }

.all-articles-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

.all-articles-link:hover { color: var(--accent-green); }

/* Footer */
footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 32px 48px;
  width: 100%;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

footer p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-links { display: flex; gap: 20px; }

.footer-links a {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
  main { padding: 56px 20px 48px; }

  .nav-inner { padding: 0 20px; }

  .hero-name { font-size: 2.25rem; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .about-photo-wrapper { position: static; max-width: 280px; }

  .project-feature { padding: 22px; }

  footer { padding: 24px 20px 40px; flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (max-width: 520px) {
  .article-grid { grid-template-columns: 1fr; }
  .hero-links { gap: 8px; }
}