@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=DM+Mono:wght@300;400;500&family=Syne:wght@400;600;700;800&display=swap');

/* ─── Variables ─────────────────────────────────────────── */
:root {
  --bg:        #0d0d0d;
  --surface:   #141414;
  --border:    #232323;
  --accent:    #c8f060;
  --accent-dim:#8aab2e;
  --text:      #e8e8e8;
  --muted:     #666;
  --heading:   'Syne', sans-serif;
  --serif:     'Instrument Serif', serif;
  --mono:      'DM Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.7;
  min-height: 100vh;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }

/* ─── Shared Layout ──────────────────────────────────────── */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

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

.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--heading);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
}

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

/* ─── Hero ───────────────────────────────────────────────── */
.hero {
  padding: 7rem 0 5rem;
  border-bottom: 1px solid var(--border);
}

.hero-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: 2px;
  margin-bottom: 2rem;
}

.hero h1 {
  font-family: var(--heading);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-family: var(--serif);
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}

.hero-sub {
  max-width: 520px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 3px;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 500;
}

.btn-primary:hover {
  background: #deff70;
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--muted);
}

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

/* ─── Section Labels ─────────────────────────────────────── */
.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

h2 {
  font-family: var(--heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 1rem;
}

h3 {
  font-family: var(--heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

/* ─── Skills / Tags ──────────────────────────────────────── */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tag {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--muted);
  transition: all 0.2s;
}

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

/* ─── Projects Grid ──────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 2rem;
}

.project-card {
  background: var(--surface);
  padding: 2rem;
  transition: background 0.2s;
  position: relative;
}

.project-card:hover { background: #1a1a1a; }

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: var(--accent);
  transition: height 0.3s ease;
}

.project-card:hover::before { height: 100%; }

.project-number {
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.project-card h3 { margin-bottom: 0.5rem; }

.project-card p {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-links a {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: all 0.2s;
}

.project-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ─── Blog List ──────────────────────────────────────────── */
.post-list { margin-top: 2rem; }

.post-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
  transition: padding-left 0.2s;
}

.post-item:hover { padding-left: 0.5rem; }

.post-date {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding-top: 0.2rem;
}

.post-item h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
  transition: color 0.2s;
}

.post-item:hover h3 { color: var(--accent); }

.post-item p {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.post-tag {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0.5rem;
}

/* ─── Contact ────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--muted);
  font-size: 0.85rem;
  transition: all 0.2s;
  margin-bottom: 0.75rem;
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200, 240, 96, 0.04);
}

.contact-icon {
  font-size: 1rem;
  width: 1.5rem;
  text-align: center;
}

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  padding: 2.5rem 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

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

/* ─── Blog Post Page ─────────────────────────────────────── */
.post-hero {
  padding: 5rem 0 3rem;
  border-bottom: 1px solid var(--border);
}

.post-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.post-hero h1 {
  font-family: var(--heading);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: #fff;
  line-height: 1.1;
  max-width: 720px;
}

.post-body {
  padding: 3.5rem 0;
  max-width: 680px;
}

.post-body p {
  color: #bbb;
  line-height: 1.9;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.post-body h2 {
  font-size: 1.4rem;
  margin: 2.5rem 0 1rem;
}

.post-body h3 {
  font-size: 1.1rem;
  margin: 2rem 0 0.75rem;
}

.post-body code {
  font-family: var(--mono);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
  font-size: 0.85em;
  color: var(--accent);
}

.post-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.5rem;
  border-radius: 3px;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.85rem;
  line-height: 1.7;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
}

.post-body ul, .post-body ol {
  padding-left: 1.5rem;
  color: #bbb;
  margin-bottom: 1.5rem;
}

.post-body li { margin-bottom: 0.4rem; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  transition: color 0.2s;
}

.back-link:hover { color: var(--accent); }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid  { grid-template-columns: 1fr; }
  .post-item     { grid-template-columns: 1fr; gap: 0.25rem; }
  .post-date     { font-size: 0.68rem; }
}

/* ─── Responsive (expanded) ──────────────────────────────── */
@media (max-width: 640px) {
  /* Layout */
  .container  { padding: 0 1.25rem; }
  section     { padding: 3rem 0; }

  /* Nav */
  .nav-inner  { padding: 1rem 1.25rem; }
  .nav-logo   { font-size: 0.95rem; }
  .nav-links  { gap: 1rem; }
  .nav-links a { font-size: 0.7rem; }

  /* Hero */
  .hero       { padding: 4rem 0 3rem; }
  .hero-cta   { flex-direction: column; }
  .btn        { text-align: center; }

  /* Post body */
  .post-body pre {
    font-size: 0.75rem;
    padding: 1rem;
    overflow-x: auto;
  }

  .post-hero  { padding: 3rem 0 2rem; }
  .post-meta  { gap: 0.75rem; font-size: 0.7rem; }
}

/* ─── Hamburger Menu ─────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .hamburger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(13,13,13,0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem 1.5rem;
    gap: 0;
  }

  .nav-links.open { display: flex; }

  .nav-links li { border-bottom: 1px solid var(--border); }
  .nav-links li:last-child { border-bottom: none; }

  .nav-links a {
    display: block;
    padding: 0.85rem 0;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
  }
}

@media (max-width: 640px) {
  .contact-link {
    font-size: 0.75rem;
    padding: 0.75rem;
    word-break: break-all;
  }

  .contact-icon {
    flex-shrink: 0;
  }
}