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

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #1c2128;
  --bg-hover: #21262d;
  --border: #30363d;
  --border-light: #444c56;
  --accent-green: #00ff88;
  --accent-blue: #3b82f6;
  --accent-dim: #00cc6a;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --tag-bg: #1c262e;
  --tag-border: #2d3f4f;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
}

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

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

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

a:hover {
  color: var(--accent-dim);
  text-decoration: underline;
}

ul {
  list-style: none;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ===== LAYOUT UTILITIES ===== */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

.section:last-of-type {
  border-bottom: none;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2.5rem;
}

/* ===== NAV ===== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-brand {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-brand span {
  color: var(--accent-green);
}

.nav-links {
  display: flex;
  gap: 1.8rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--accent-green);
  text-decoration: none;
}

/* ===== HAMBURGER (mobile) ===== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 0.75rem 1.5rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.mobile-menu a:hover {
  color: var(--accent-green);
  background: var(--bg-hover);
  text-decoration: none;
}

/* ===== HERO ===== */
#hero {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--border);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--accent-green);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero-eyebrow::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
}

.hero-name {
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.04em;
  margin-bottom: 0.5rem;
}

.hero-role {
  font-size: clamp(0.9rem, 2.5vw, 1.1rem);
  color: var(--accent-green);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.hero-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-subtitle::before {
  content: "// ";
  color: var(--text-muted);
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
}

.social-btn:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: var(--tag-bg);
  text-decoration: none;
}

.social-btn i {
  font-size: 0.75rem;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.about-text p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 0;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
}

.edu-label {
  font-size: 0.68rem;
  color: var(--accent-green);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.edu-degree {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.edu-school {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
  line-height: 1.4;
}

.edu-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.edu-badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  border-radius: 3px;
  color: var(--text-secondary);
}

.edu-badge.green {
  color: var(--accent-green);
  border-color: #1a3a2a;
  background: #0d1f17;
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.skill-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.1rem 1.25rem;
}

.skill-group-title {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  color: var(--text-secondary);
  border-radius: 3px;
}

.tag.accent {
  color: var(--accent-green);
  border-color: #1e3a2a;
  background: #0d1f18;
}

/* ===== EXPERIENCE ===== */
.exp-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 1.25rem;
}

.exp-line {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.exp-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-green);
  flex-shrink: 0;
  margin-top: 5px;
}

.exp-trail {
  width: 2px;
  flex: 1;
  background: var(--border);
  margin-top: 6px;
}

.exp-role {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.exp-company {
  font-size: 0.8rem;
  color: var(--accent-green);
  margin-bottom: 0.2rem;
}

.exp-dates {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.exp-points {
  padding-left: 0;
}

.exp-points li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.35rem;
  padding-left: 1.1rem;
  position: relative;
}

.exp-points li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-green);
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.project-card:hover {
  border-color: var(--border-light);
  background: var(--bg-hover);
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.project-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.project-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
}

.project-link-icon {
  color: var(--text-muted);
  font-size: 0.8rem;
  flex-shrink: 0;
  padding: 0.25rem;
}

.project-link-icon:hover {
  color: var(--accent-green);
  text-decoration: none;
}

.project-desc {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.project-desc li {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.55;
  padding-left: 1rem;
  position: relative;
}

.project-desc li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent-green);
  font-size: 0.7rem;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.stack-tag {
  font-size: 0.68rem;
  padding: 0.18rem 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 3px;
}

/* ===== ACHIEVEMENTS ===== */
.achievements-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.achievement-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
}

.achievement-icon {
  font-size: 1.1rem;
  color: var(--accent-green);
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}

.achievement-text {
  font-size: 0.855rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* ===== CONTACT ===== */
#contact {
  border-bottom: none;
  padding-bottom: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.contact-intro {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 5px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.contact-link i {
  color: var(--accent-green);
  width: 16px;
  text-align: center;
}

.contact-link:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: var(--tag-bg);
  text-decoration: none;
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  text-align: center;
}

.footer-text {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.footer-text span {
  color: var(--accent-green);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 720px) {
  .nav-links {
    display: none;
  }
  .hamburger {
    display: flex;
  }

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

  .exp-card {
    grid-template-columns: 1fr;
  }

  .exp-line {
    display: none;
  }

  #hero {
    padding: 3rem 0 3rem;
  }

  .section {
    padding: 3.5rem 0;
  }
  .section-title {
    margin-bottom: 1.75rem;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 1.75rem;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== STATUS BAR (decorative) ===== */
.status-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.3rem 1.5rem;
  background: #0a0e14;
  border-top: 1px solid var(--border);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.status-bar .status-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  display: inline-block;
}