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

:root {
  --bg: #0c0c0c;
  --bg-card: #141414;
  --text: #e8e8e8;
  --text-muted: #888;
  --accent: #f97316;
  --accent-dim: rgba(249, 115, 22, 0.12);
  --border: #222;
  --shadow: 4px 4px 0 var(--accent);
  --shadow-sm: 3px 3px 0 var(--border);
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
}

@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap");

html {
  scroll-behavior: smooth;
  font-size: 18px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: radial-gradient(circle, #1a1a1a 1px, transparent 1px);
  background-size: 28px 28px;
}

::selection {
  background: var(--accent);
  color: #000;
}

a {
  color: inherit;
}

/* ===== Fade-in ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

main { animation: fadeIn 0.8s ease-out; }

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 2rem;
  background: rgba(12, 12, 12, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.logo-bracket { color: var(--accent); }
.nav-logo:hover { color: var(--accent); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  transition: color 0.2s;
  text-transform: uppercase;
}

.nav-links a:hover,
.nav-links a.active { color: var(--accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  position: relative;
  transition: all 0.3s;
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s;
}

.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }
.hamburger.open { background: transparent; }
.hamburger.open::before { top: 0; transform: rotate(45deg); }
.hamburger.open::after { top: 0; transform: rotate(-45deg); }

/* ===== Section Divider ===== */
.section-divider {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 0 auto;
  max-width: 960px;
}

/* ===== Hero ===== */
.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 2rem;
  padding: 5rem 2rem 2.5rem;
  max-width: 1060px;
  margin: 0 auto;
}

.hero-greeting {
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
}

.hero-name {
  font-size: 2.6rem;
  white-space: nowrap;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.hero-title {
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 0.8rem;
  min-height: 1.3em;
}

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

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

.hero-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.highlight {
  color: #000;
  background: var(--accent);
  padding: 0.05em 0.35em;
  font-weight: 600;
}

.hero-cta {
  display: flex;
  gap: 0.6rem;
}

.hero-decoration {
  display: flex;
  justify-content: flex-end;
}

.code-block {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1rem 1.2rem;
  white-space: pre;
  overflow-x: auto;
  box-shadow: var(--shadow);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.45rem 1.1rem;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.72rem;
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border: 1px solid var(--accent);
  box-shadow: 3px 3px 0 #000;
}

.btn-primary:hover {
  box-shadow: 1px 1px 0 #000;
  transform: translate(2px, 2px);
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  background: transparent;
  box-shadow: 3px 3px 0 var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 1px 1px 0 var(--border);
  transform: translate(2px, 2px);
}

/* ===== Section Titles ===== */
.section-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title::before {
  content: "#";
  color: var(--accent);
  font-weight: 400;
}

/* ===== About ===== */
.about {
  padding: 2.5rem 2rem;
  max-width: 960px;
  margin: 0 auto;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  font-size: 0.92rem;
  line-height: 1.8;
}

.about-text strong {
  color: var(--text);
  background: var(--accent-dim);
  padding: 0.05em 0.3em;
}

.about-stats {
  display: flex;
  gap: 0.75rem;
}

.stat {
  flex: 1;
  text-align: center;
  padding: 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s, transform 0.15s;
}

.stat:hover {
  box-shadow: var(--shadow);
  transform: translate(-1px, -1px);
}

.stat-number {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.15rem;
}

/* ===== Skills ===== */
.skills {
  padding: 2.5rem 2rem;
  max-width: 960px;
  margin: 0 auto;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s, transform 0.15s;
}

.skill-card:hover {
  box-shadow: var(--shadow);
  transform: translate(-1px, -1px);
}

.skill-icon {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 700;
}

.skill-card h3 {
  margin: 0.3rem 0;
  font-size: 0.9rem;
  font-weight: 600;
}

.skill-card ul { list-style: none; }

.skill-card li {
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 0.1rem 0;
  padding-left: 0.9rem;
  position: relative;
}

.skill-card li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.68rem;
}

/* ===== Projects ===== */
.projects {
  padding: 2.5rem 2rem;
  max-width: 960px;
  margin: 0 auto;
}

.project-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  width: fit-content;
}

.tab-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.35rem 1.2rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.tab-btn:first-child { border-right: 1px solid var(--border); }
.tab-btn:hover { color: var(--text); background: var(--accent-dim); }
.tab-btn.active { background: var(--accent); color: #000; }

.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1rem 1.2rem;
  display: block;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s, transform 0.15s;
}

.project-card:hover {
  box-shadow: var(--shadow);
  transform: translate(-1px, -1px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.3rem;
}

.project-header h3 {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 600;
}

.project-stars {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 0.6rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.tech-tag {
  font-size: 0.72rem;
  padding: 0.12rem 0.5rem;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(249, 115, 22, 0.25);
  font-weight: 500;
}

.projects-more {
  margin-top: 1.25rem;
}

/* ===== Contact ===== */
.contact {
  padding: 2.5rem 2rem;
  max-width: 960px;
  margin: 0 auto;
}

.contact-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-text {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  gap: 0.75rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
  padding: 0.55rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s, transform 0.15s;
  font-size: 0.88rem;
}

.contact-link:hover {
  box-shadow: var(--shadow);
  transform: translate(-1px, -1px);
}

.contact-icon {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.68rem;
}

.footer-sub {
  font-size: 0.62rem;
  color: var(--accent);
  margin-top: 0.3rem;
  opacity: 0.6;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  body { background-size: 22px 22px; }

  .hero {
    grid-template-columns: 1fr;
    padding: 4.5rem 1.5rem 2rem;
    gap: 1.5rem;
  }

  .hero-name { font-size: 1.6rem; }
  .hero-decoration { display: none; }
  .nav-toggle { display: block; }

  .nav-links {
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(12, 12, 12, 0.97);
    padding: 1.25rem;
    gap: 1rem;
    align-items: center;
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s;
    pointer-events: none;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .about-stats { flex-direction: row; }
  .skills-grid { grid-template-columns: 1fr 1fr; }

  .about, .skills, .projects, .contact {
    padding: 2rem 1.5rem;
  }

  .contact-links { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .about-stats { flex-direction: column; }
  .hero-name { font-size: 1.4rem; }
  .hero-cta { flex-direction: column; }
}