/* ============================================
   Reset & Base
   ============================================ */

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

:root {
  --color-bg: #faf8f4;
  --color-bg-alt: #f4f1ea;
  --color-text: #16150f;
  --color-muted: #6c685c;
  --color-faint: #9b978a;
  --color-border: #e4dfd3;
  --color-border-strong: #d6d0c1;
  --color-surface: #ffffff;

  --accent: #0f6b54;
  --accent-soft: #1c8a6e;
  --accent-wash: #e7f2ee;
  --accent-rgb: 15, 107, 84;

  --font-sans: 'Georgia', 'Times New Roman', serif;
  --font-mono: 'Courier New', monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  --max-width: 1100px;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

/* Dark theme */
html[data-theme="dark"] {
  --color-bg: #14130f;
  --color-bg-alt: #1c1a15;
  --color-text: #f3f0e8;
  --color-muted: #a8a496;
  --color-faint: #76736a;
  --color-border: #2c2a23;
  --color-border-strong: #3a382f;
  --color-surface: #1c1a15;

  --accent: #4cc7a4;
  --accent-soft: #6fe0bf;
  --accent-wash: #15302a;
  --accent-rgb: 76, 199, 164;
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
}

a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-border-strong);
  transition: color var(--transition), text-decoration-color var(--transition);
}

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

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

/* ============================================
   Scroll progress
   ============================================ */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  z-index: 200;
  transition: width 0.1s linear;
}

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.two-col {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-lg);
  align-items: start;
}

/* ============================================
   Header & Nav
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition), border-color var(--transition);
}

.site-header nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.1rem var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.logo {
  font-size: 1rem;
  font-weight: normal;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
}

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

.site-header ul {
  list-style: none;
  display: flex;
  gap: var(--space-md);
  margin-left: auto;
}

.site-header ul a {
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
  position: relative;
  padding-bottom: 3px;
}

.site-header ul a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.site-header ul a:hover,
.site-header ul a.active {
  color: var(--color-text);
}

.site-header ul a:hover::after,
.site-header ul a.active::after {
  width: 100%;
}

.theme-toggle {
  appearance: none;
  background: transparent;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  color: var(--color-muted);
  display: grid;
  place-items: center;
  position: relative;
  flex: none;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: rotate(-15deg);
}

.theme-icon {
  position: absolute;
  font-size: 1rem;
  line-height: 1;
  transition: opacity var(--transition), transform var(--transition);
}

.theme-icon.moon { opacity: 0; transform: scale(0.4) rotate(-90deg); }
html[data-theme="dark"] .theme-icon.sun { opacity: 0; transform: scale(0.4) rotate(90deg); }
html[data-theme="dark"] .theme-icon.moon { opacity: 1; transform: none; }

/* ============================================
   Hero
   ============================================ */

.hero {
  position: relative;
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  min-height: 86vh;
  display: flex;
  align-items: center;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  z-index: 0;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 760px;
  max-height: 760px;
  background: radial-gradient(circle at center,
    rgba(var(--accent-rgb), 0.16),
    rgba(var(--accent-rgb), 0.05) 45%,
    transparent 70%);
  filter: blur(10px);
  pointer-events: none;
  animation: drift 16s ease-in-out infinite alternate;
}

@keyframes drift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-6%, 6%) scale(1.12); }
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.hero h1 {
  font-size: clamp(3rem, 9vw, 6.5rem);
  font-weight: normal;
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-md);
}

.tagline {
  font-size: 1.25rem;
  color: var(--color-muted);
  max-width: 580px;
  margin-bottom: var(--space-lg);
}

.tagline .hl {
  color: var(--color-text);
  background: linear-gradient(transparent 62%, var(--accent-wash) 62%);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border: 1px solid var(--color-text);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background-color var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition);
}

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

.btn-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--accent-soft);
  border-color: var(--accent-soft);
  color: #fff;
}

.btn:not(.btn-primary):hover {
  background-color: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 1.8rem;
  transform: translateX(-50%);
  z-index: 1;
  width: 24px;
  height: 38px;
  border: 1px solid var(--color-border-strong);
  border-radius: 14px;
  display: block;
}

.scroll-cue span {
  position: absolute;
  left: 50%;
  top: 8px;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--accent);
  animation: cue 1.6s ease-in-out infinite;
}

@keyframes cue {
  0%   { opacity: 0; transform: translateY(0); }
  40%  { opacity: 1; }
  100% { opacity: 0; transform: translateY(12px); }
}

/* ============================================
   Stats band
   ============================================ */

.stats-band {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  transition: background-color var(--transition);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.stat {
  text-align: center;
  position: relative;
}

.stat + .stat::before {
  content: "";
  position: absolute;
  left: calc(var(--space-md) / -2);
  top: 12%;
  height: 76%;
  width: 1px;
  background: var(--color-border);
}

.stat-value {
  display: block;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.stat-label {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* ============================================
   About
   ============================================ */

.about {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.section-label {
  padding-top: 0.3rem;
}

.section-label span {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-block;
  position: relative;
  padding-left: 1.6rem;
}

.section-label span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 1.1rem;
  height: 1px;
  background: var(--accent);
}

.lead {
  font-size: 1.3rem;
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.section-content p + p {
  margin-top: var(--space-sm);
}

/* ============================================
   Work
   ============================================ */

.work {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-label-inline {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: var(--space-xs);
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: normal;
  letter-spacing: -0.01em;
}

.work-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.work-item {
  position: relative;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition),
              box-shadow var(--transition);
}

.work-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

.work-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
  box-shadow: 0 18px 40px -24px rgba(var(--accent-rgb), 0.5);
}

.work-item:hover::before {
  transform: scaleY(1);
}

.work-meta {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
  align-items: center;
}

.work-tag {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  transition: background-color var(--transition), color var(--transition);
}

.work-item:hover .work-tag {
  background: var(--accent-wash);
  border-color: var(--accent);
}

.work-year {
  font-size: 0.8rem;
  color: var(--color-faint);
  font-family: var(--font-mono);
}

.work-item h3 {
  font-size: 1.2rem;
  font-weight: normal;
  line-height: 1.35;
  margin-bottom: var(--space-xs);
}

.work-item h3 a { text-decoration: none; }
.work-item h3 a:hover { color: var(--accent); }

.work-item p {
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.work-arrow {
  position: absolute;
  right: var(--space-md);
  bottom: var(--space-md);
  color: var(--accent);
  font-size: 1.1rem;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--transition), transform var(--transition);
}

.work-item:hover .work-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================
   Contact
   ============================================ */

.contact {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.email-link {
  display: inline-block;
  font-size: 1.15rem;
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
  transition: opacity var(--transition), color var(--transition);
}

.email-link:hover {
  color: var(--accent);
  opacity: 0.85;
}

.social-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.social-links a {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-muted);
}

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

/* ============================================
   Footer
   ============================================ */

.site-footer {
  padding: var(--space-md) 0;
}

.site-footer .container {
  display: flex;
  justify-content: flex-start;
}

.site-footer span {
  font-size: 0.8rem;
  color: var(--color-faint);
}

/* ============================================
   Reveal animations
   ============================================ */

.reveal-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(.2,.7,.2,1);
  transition-delay: var(--d, 0s);
}

.reveal-up.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal-up { opacity: 1; transform: none; transition: none; }
  .hero-glow, .scroll-cue span { animation: none; }
  html { scroll-behavior: auto; }
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  html { font-size: 16px; }

  .hero { min-height: auto; padding: var(--space-lg) 0 var(--space-xl); }

  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .work-grid { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-lg) var(--space-md); }

  .about, .work, .contact { padding: var(--space-lg) 0; }

  .site-header ul { gap: var(--space-sm); }
}

@media (max-width: 480px) {
  .site-header ul { display: none; }
  .scroll-cue { display: none; }
}