/* ============================================
   TOKENS
   ============================================ */
:root {
  --bg: #12181F;
  --surface: #1A222C;
  --surface-2: #212B37;
  --border: #2A3441;
  --text: #E8EAED;
  --text-muted: #8A94A3;
  --accent: #D9A441;
  --accent-2: #3E7C8C;
 
  --font-display: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;
 
  --max-width: 1120px;
  --radius: 6px;
}
 
html[data-theme="light"] {
  --bg: #F5F3EE;
  --surface: #FFFFFF;
  --surface-2: #ECE8DF;
  --border: #DAD4C6;
  --text: #1B1F24;
  --text-muted: #5E6570;
  --accent: #B9791F;
  --accent-2: #2E6373;
}
 
* { box-sizing: border-box; }
 
html { scroll-behavior: smooth; }
 
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}
 
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}
 
img { max-width: 100%; display: block; }
 
a { color: inherit; text-decoration: none; }
 
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 96px 32px;
}
 
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; margin: 0; letter-spacing: -0.01em; }
 
h2 { font-size: 2rem; color: var(--text); }
 
.rule {
  width: 48px;
  height: 3px;
  background: var(--accent);
  margin-top: 14px;
  margin-bottom: 40px;
  border-radius: 2px;
}
 
/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
 
.btn-primary { background: var(--accent); color: #12181F; }
.btn-primary:hover { background: #eab554; }
 
.btn-outline { border-color: var(--accent-2); color: var(--accent-2); }
.btn-outline:hover { background: var(--accent-2); color: var(--bg); }
 
/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(18, 24, 31, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
html[data-theme="light"] .nav { background: rgba(245, 243, 238, 0.85); }
 
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
 
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}
.nav-logo .dot { color: var(--accent); }
 
.nav-links {
  display: flex;
  gap: 32px;
}
 
.nav-link {
  font-family: var(--font-display);
  font-size: 0.88rem;
  color: var(--text-muted);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.2s ease;
}
.nav-link:hover { color: var(--text); }
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.25s ease;
}
.nav-link:hover::after { width: 100%; }
 
.nav-controls { display: flex; align-items: center; gap: 10px; }
 
.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  width: 38px; height: 38px;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
 
.menu-btn { display: none; }
 
/* ============================================
   HERO
   ============================================ */
.hero {
  padding-top: 140px;
  min-height: 92vh;
  display: flex;
  align-items: center;
}
 
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px 60px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
 
.hero-kicker {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 0.9rem;
  margin: 0 0 18px;
}
 
.hero-name {
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1.05;
  margin-bottom: 20px;
}
 
.hero-tagline {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 46ch;
  margin-bottom: 36px;
}
 
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
 
.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
 
.panel-frame {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  background: var(--surface);
}
 
.hero-photo {
  width: 100%;
  border-radius: 4px;
  filter: grayscale(15%);
}
 
.panel-readout {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-muted);
}
 
.readout-row i { color: var(--accent-2); width: 18px; }
 
.status-live { color: var(--accent); }
.status-live i { color: var(--accent); font-size: 0.5rem; vertical-align: middle; }
 
/* ============================================
   ABOUT
   ============================================ */
.about { background: var(--surface); }
 
.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.6fr;
  gap: 48px;
}
 
.about-body p {
  color: var(--text-muted);
  max-width: 68ch;
  margin-bottom: 32px;
}
 
/* ============================================
   SKILLS
   ============================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
 
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.skill-card:hover { border-color: var(--accent-2); transform: translateY(-3px); }
 
.skill-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: 0.92rem;
}
.skill-head i { color: var(--accent); font-size: 1.1rem; width: 20px; }
 
.skill-bar {
  height: 6px;
  background: var(--surface-2);
  border-radius: 3px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  width: var(--level);
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  border-radius: 3px;
}
 
/* ============================================
   PROJECTS
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
 
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.project-card:hover { border-color: var(--accent); transform: translateY(-4px); }
 
.project-body { padding: 22px; }
.project-body h3 { font-size: 1.05rem; margin-bottom: 10px; }
.project-body p { color: var(--text-muted); font-size: 0.94rem; margin-bottom: 18px; }
 
.project-link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.project-link i { transition: transform 0.2s ease; }
.project-card:hover .project-link i { transform: translateX(4px); }
 
/* ============================================
   CONTACT
   ============================================ */
.contact { background: var(--surface); }
 
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
}
 
.contact-info p { color: var(--text-muted); max-width: 40ch; }
 
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  color: var(--accent);
  margin: 20px 0 28px;
}
 
.social-links { display: flex; gap: 16px; }
.social-links a {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.social-links a:hover { border-color: var(--accent); color: var(--accent); }
 
.form-group { margin-bottom: 20px; display: flex; flex-direction: column; }
.form-group label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-group input, .form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.2s ease;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group input.invalid, .form-group textarea.invalid { border-color: #d9534f; }
 
.error-msg { color: #e08e8b; font-size: 0.8rem; margin-top: 6px; min-height: 1em; }
 
.form-success {
  display: none;
  color: var(--accent-2);
  font-size: 0.9rem;
  margin-top: 16px;
}
.form-success.show { display: block; }
 
/* ============================================
   FOOTER
   ============================================ */
.footer { border-top: 1px solid var(--border); }
.footer-inner {
  padding: 32px !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-inner p { color: var(--text-muted); font-size: 0.88rem; margin: 0; }
 
/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: #12181F;
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 6px 18px rgba(0,0,0,0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  z-index: 90;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
 
/* ============================================
   RESPONSIVE — 1440 desktop is default above.
   Tablet breakpoint (≤ 900px covers 768px target)
   ============================================ */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-panel { order: -1; max-width: 340px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}
 
/* Mobile breakpoint (covers 360px target) */
@media (max-width: 640px) {
  .section-inner { padding: 64px 20px; }
 
  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 18px;
    transform: translateY(-120%);
    transition: transform 0.25s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .menu-btn { display: flex; }
 
  .hero { padding-top: 110px; min-height: auto; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
 
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
 
  .footer-inner { flex-direction: column; text-align: center; }
}