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

:root {
  --bg: #0a0e17;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --border: #1e293b;
  --text: #c9d1d9;
  --text-dim: #6b7280;
  --green: #00ff9f;
  --cyan: #22d3ee;
  --purple: #a78bfa;
  --yellow: #facc15;
  --red: #f87171;
  --pink: #f472b6;
  --font: 'JetBrains Mono', monospace;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 60px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}

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

::selection {
  background: var(--green);
  color: var(--bg);
}

/* ===== Stars background ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 30% 60%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 50% 10%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1px 1px at 70% 80%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 90% 40%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 15% 85%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 45% 45%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1.5px 1.5px at 80% 15%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 25% 35%, rgba(255,255,255,0.2), transparent);
  pointer-events: none;
  z-index: -1;
}

/* ===== Nav ===== */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0.8rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-weight: 700;
  font-size: 1rem;
  color: var(--green);
}
.nav-logo:hover { color: var(--cyan); }

.nav-links {
  display: flex;
  gap: 1.5rem;
}
.nav-links a {
  color: var(--text-dim);
  font-size: 0.85rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--green); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
}

/* ===== Hero ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 1.5rem 4rem;
}

.terminal-window {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 100%;
  max-width: 700px;
  overflow: hidden;
  box-shadow: 0 0 40px rgba(0, 255, 159, 0.05);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #161b2e;
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.terminal-body {
  padding: 1.5rem;
}

.terminal-body .line {
  margin-bottom: 0.4rem;
}

.prompt {
  color: var(--green);
  margin-right: 0.5rem;
}

.terminal-body h1 {
  font-size: 1.5rem;
  color: var(--cyan);
  margin-bottom: 1rem;
  min-height: 2rem;
}

.output {
  color: var(--text);
  margin-bottom: 1rem;
  padding-left: 1.2rem;
}

.highlight {
  color: var(--green);
  font-weight: 500;
}

.cursor {
  animation: blink 1s step-end infinite;
  color: var(--green);
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ===== Sections ===== */
.section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text);
}
.section-title .prompt {
  color: var(--purple);
}

.section-sub {
  color: var(--text-dim);
  margin-bottom: 2rem;
}

/* ===== About ===== */
.about-text p {
  margin-bottom: 1rem;
  max-width: 650px;
}
.about-text strong {
  color: var(--cyan);
}

.about-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}
.stat-value {
  display: block;
  font-size: 1.8rem;
  color: var(--green);
  font-weight: 700;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ===== Projects ===== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.3s, transform 0.3s;
}
.project-card:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.project-icon {
  font-size: 1.6rem;
}
.project-links {
  display: flex;
  gap: 0.6rem;
}
.project-link {
  color: var(--text-dim);
  font-size: 0.8rem;
}
.project-link:hover {
  color: var(--green);
}

.project-card h3 {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.project-card p {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.project-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.project-tags span {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 255, 159, 0.08);
  color: var(--green);
  border: 1px solid rgba(0, 255, 159, 0.15);
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}

.skill-group h3 {
  font-size: 0.95rem;
  color: var(--cyan);
  margin-bottom: 0.8rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.skill-tags span {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  transition: border-color 0.2s, color 0.2s;
}
.skill-tags span:hover {
  border-color: var(--green);
  color: var(--green);
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

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

.timeline-marker {
  position: absolute;
  left: -2rem;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--green);
}

.timeline-date {
  font-size: 0.78rem;
  color: var(--green);
  margin-bottom: 0.3rem;
  display: block;
}

.timeline-content h3 {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.2rem;
}

.timeline-org {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.timeline-content p:last-child {
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ===== Blog ===== */
.blog-grid {
  display: grid;
  gap: 1.2rem;
}

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

.blog-date {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.blog-card h3 {
  font-size: 1rem;
  color: var(--text);
  margin: 0.4rem 0;
}

.blog-card p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0.8rem;
}

.blog-link {
  font-size: 0.85rem;
  color: var(--purple);
}
.blog-link:hover {
  color: var(--cyan);
}

/* ===== Contact ===== */
.contact-box {
  max-width: 500px;
}

.terminal-window.small .terminal-body {
  padding: 1.2rem;
}
.terminal-window.small .line {
  margin-bottom: 0.3rem;
}
.terminal-window.small .output {
  margin-bottom: 0.8rem;
  padding-left: 1.2rem;
}
.terminal-window.small .output a {
  color: var(--cyan);
}
.terminal-window.small .output a:hover {
  color: var(--green);
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ===== Animations ===== */
.section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 14, 23, 0.95);
    padding: 1rem 1.5rem;
    gap: 0.8rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-toggle { display: block; }

  .terminal-body h1 { font-size: 1.2rem; }

  .about-stats { gap: 1.5rem; }

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

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