:root {
  --bg: #1e1e1e;
  --bg2: #2a2a2a;
  --ink: #ffffff;
  --ink2: #e0e0e0;
  --ink3: #a0a0a0;
  --accent: #E8824A;
  --accent2: #ff9f6b;
  --green: #4ade80;
  --blue: #60a5fa;
  --border: rgba(255,255,255,0.12);
  --border-strong: rgba(255,255,255,0.25);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

html :not(body) {
  font-family: 'Adwaita', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ─── NOISE TEXTURE ─── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.15;
}

/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 20px 48px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(30,30,30,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: 'Fraunces', serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex; gap: 32px; list-style: none;
}

.nav-links a {
  font-size: 0.825rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink2);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: 80px;
}

.hero-left {
  padding: 80px 48px 80px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border);
}

.hero-eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}

h1.hero-name {
  font-family: 'Fraunces', serif;
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

h1.hero-name em {
  font-style: italic;
  color: var(--accent);
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--ink2);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-actions {
  display: flex; gap: 16px; flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
  background: var(--accent2);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border: 1.5px solid var(--border-strong);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 80px 48px;
  background: var(--bg2);
}

.hero-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 48px;
}

.hero-stat {
  background: var(--bg2);
  padding: 28px 24px;
}

.hero-stat .num {
  font-family: 'Fraunces', serif;
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  margin-bottom: 6px;
  color: var(--ink);
}

.hero-stat .label {
  font-size: 0.8rem;
  color: var(--ink3);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.hero-specialisms {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.specialism-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--border);
  background: var(--bg);
  transition: border-color 0.2s, transform 0.2s;
}

.specialism-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.specialism-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.specialism-icon svg {
  width: 16px;
  height: 16px;
  fill: var(--bg);
}

.specialism-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink);
}

/* ─── SECTION WRAPPER ─── */
section {
  padding: 100px 48px;
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

h2.section-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 56px;
}

h2.section-title em {
  font-style: italic;
  color: var(--accent);
}

/* ─── ABOUT ─── */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  font-size: 1.05rem;
  color: var(--ink2);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-text p strong {
  color: var(--ink);
  font-weight: 500;
}

.about-sidebar {}

.about-sidebar-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 32px;
  margin-bottom: 24px;
}

.about-sidebar-card h4 {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.about-sidebar-card p {
  font-size: 0.9rem;
  color: var(--ink2);
  line-height: 1.7;
}

/* ─── TECH STACK ─── */
#tech-stack { background: var(--bg); }

.tech-tiers {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.tech-tier {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  align-items: start;
}

.tier-label-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
}

.tier-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.tier-sublabel {
  font-family: 'DM Mono', monospace;
  font-size: 0.6rem;
  color: var(--ink3);
  letter-spacing: 0.06em;
}

.tier-divider {
  width: 24px;
  height: 1px;
  background: var(--border-strong);
  margin-top: 8px;
}

.tier-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tier-tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  padding: 8px 16px;
  border: 1px solid var(--border);
  color: var(--ink2);
  background: var(--bg2);
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
  cursor: default;
}

.tier-tag:hover {
  border-color: var(--accent);
  color: var(--ink);
  transform: translateY(-2px);
}

.tier--core .tier-tag {
  border-color: var(--border-strong);
  color: var(--ink);
  background: var(--bg2);
}

.tier--core .tier-tag:hover {
  border-color: var(--accent);
  background: var(--bg);
}

.tier--familiar .tier-tag {
  color: var(--ink3);
  opacity: 0.8;
}

.tech-tier-divider {
  height: 1px;
  background: var(--border);
}

/* ─── PROJECTS ─── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.project-card {
  background: var(--bg);
  padding: 40px 32px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: background 0.25s;
  position: relative;
  overflow: hidden;
}

.project-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.project-card:hover { background: var(--bg2); }
.project-card:hover::after { transform: scaleX(1); }

.project-num {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  color: var(--ink3);
  letter-spacing: 0.1em;
}

.project-name {
  font-family: 'Fraunces', serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--ink2);
  line-height: 1.65;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  padding: 3px 10px;
  border: 1px solid var(--border-strong);
  color: var(--ink3);
  letter-spacing: 0.04em;
}

.project-arrow {
  font-size: 1.1rem;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  transform: translateX(-8px);
}

.project-card:hover .project-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ─── AGENTIC AI SECTION ─── */
#agentic { background: var(--bg2); }

.agentic-intro {
  font-size: 1.05rem;
  color: var(--ink2);
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: 64px;
}

.agentic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.agentic-card {
  background: var(--bg2);
  padding: 40px 32px;
  transition: background 0.2s;
}

.agentic-card:hover { background: var(--bg); }

.agentic-card-icon {
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.agentic-card h3 {
  font-family: 'Fraunces', serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}

.agentic-card p {
  font-size: 0.875rem;
  color: var(--ink3);
  line-height: 1.7;
}

.agentic-note {
  margin-top: 48px;
  padding: 28px 32px;
  border: 1px solid var(--border);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.agentic-note-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  flex-shrink: 0;
  padding-top: 2px;
}

.agentic-note p {
  font-size: 0.9rem;
  color: var(--ink2);
  line-height: 1.7;
}

/* ─── CODE STYLE ─── */
#coding-style {}

.code-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 48px;
}

.code-card {
  background: var(--bg);
  padding: 28px 20px;
  cursor: pointer;
  transition: background 0.2s;
  position: relative;
}

.code-card:hover { background: var(--bg2); }

.code-card-num {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--ink3);
  margin-bottom: 8px;
}

.code-card-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}

.code-card-lang {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  color: var(--accent);
}

.code-card-view {
  position: absolute;
  bottom: 20px;
  right: 20px;
  font-size: 0.7rem;
  color: var(--ink3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0;
  transition: opacity 0.2s;
}

.code-card:hover .code-card-view { opacity: 1; }

/* ─── PHILOSOPHY ─── */
#philosophy { background: var(--bg2); }

.philosophy-layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 80px;
  align-items: start;
}

.philosophy-quote {
  position: sticky;
  top: 120px;
}

.philosophy-quote blockquote {
  font-family: 'Fraunces', serif;
  font-size: 1.6rem;
  font-weight: 400;
  font-style: italic;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 16px;
}

.philosophy-quote cite {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--ink3);
  font-style: normal;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.philosophy-body p {
  font-size: 1rem;
  color: var(--ink2);
  line-height: 1.85;
  margin-bottom: 24px;
}

.philosophy-body p strong {
  color: var(--ink);
  font-weight: 500;
}

/* ─── CONTACT ─── */
#contact {
  padding: 100px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  background: var(--bg);
}

.contact-left h2 {
  font-family: 'Fraunces', serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.contact-left h2 em {
  font-style: italic;
  color: var(--accent);
}

.contact-left p {
  font-size: 1rem;
  color: var(--ink2);
  line-height: 1.7;
  margin-bottom: 36px;
}

.contact-right {}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px;
  background: var(--bg);
  text-decoration: none;
  transition: background 0.2s;
}

.contact-link:hover { background: var(--bg2); }

.contact-link-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink3);
}

.contact-link-value {
  font-size: 0.9rem;
  color: var(--ink);
  font-weight: 500;
}

.contact-link-arrow {
  color: var(--accent);
  font-size: 1rem;
}

/* ─── FOOTER ─── */
footer {
  padding: 32px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  background: var(--bg2);
}

footer .footer-left {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--ink3);
  letter-spacing: 0.06em;
}

footer .footer-right {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--ink3);
}

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

/* ─── MODAL ─── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal-box {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  max-width: 700px;
  width: 90%;
  max-height: 80vh;
  overflow: auto;
  position: relative;
  animation: modal-in 0.25s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-family: 'Fraunces', serif;
  font-size: 1.1rem;
  color: var(--ink);
}

.modal-close-btn {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--ink2);
  font-size: 1.2rem;
  transition: color 0.2s;
}

.modal-close-btn:hover { color: var(--accent); }

.modal-code {
  padding: 28px;
  font-family: 'DM Mono', monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg2);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ─── ANIMATIONS ─── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero-right { border-top: 1px solid var(--border); }
  #about .about-grid,
  .philosophy-layout,
  #contact { grid-template-columns: 1fr; }
  .philosophy-quote { position: static; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .agentic-grid { grid-template-columns: 1fr 1fr; }
  .code-grid { grid-template-columns: repeat(2, 1fr); }
  nav { padding: 16px 24px; }
  section { padding: 64px 24px; }
  #contact { padding: 64px 24px; }
  footer { padding: 24px; }
}

@media (max-width: 640px) {
  .hero-left, .hero-right { padding: 48px 24px; }
  .projects-grid, .agentic-grid { grid-template-columns: 1fr; }
  .code-grid { grid-template-columns: 1fr 1fr; }
  .hero-stat-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .tech-tier { grid-template-columns: 1fr; gap: 16px; }
}