/* ---- Tokens ---- */
:root {
  --bg: #efe7d6;
  --surface: #e6dcc7;
  --surface-2: #dccfb4;
  --border: #c6b896;
  --ink: #221d15;
  --ink-dim: #6d6250;
  --accent: #a2691f;
  --accent-2: #3f6e57;
  --radius: 3px;
  --max-width: 1080px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #10181a;
    --surface: #172224;
    --surface-2: #1e2c2e;
    --border: #2c3c3e;
    --ink: #ece4d2;
    --ink-dim: #97a29a;
    --accent: #d6a13f;
    --accent-2: #6fae8c;
  }
}

:root[data-theme="dark"] {
  --bg: #10181a;
  --surface: #172224;
  --surface-2: #1e2c2e;
  --border: #2c3c3e;
  --ink: #ece4d2;
  --ink-dim: #97a29a;
  --accent: #d6a13f;
  --accent-2: #6fae8c;
}

/* ---- Base ---- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
}

img {
  max-width: 100%;
  display: block;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  text-wrap: balance;
  margin: 0;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  position: relative;
}

.brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-transform: uppercase;
}

.brand-slash {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-dim);
  text-transform: uppercase;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.site-nav a:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 1px;
  width: 18px;
  margin: 0 auto;
  background: var(--ink);
}

/* ---- Hero ---- */
.hero {
  padding: 72px 0 84px;
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 56px;
  align-items: start;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 600;
  line-height: 1.02;
  margin-bottom: 18px;
}

.hero-role {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--ink);
  font-weight: 500;
  margin: 0 0 20px;
}

.hero-desc {
  color: var(--ink-dim);
  max-width: 480px;
  font-size: 1.02rem;
  margin: 0 0 34px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.92rem;
  font-family: var(--font-body);
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-ghost {
  border-color: var(--border);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
  transform: translateY(-2px);
}

/* ---- ID card ---- */
.id-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  justify-self: end;
  width: 100%;
  max-width: 320px;
}

.id-photo {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}

.id-photo::before,
.id-photo::after,
.id-photo img {
  display: block;
}

.id-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.15) contrast(1.03);
}

.id-photo::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 8px;
  width: 16px;
  height: 16px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
  z-index: 2;
}

.id-photo::after {
  content: "";
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 16px;
  height: 16px;
  border-bottom: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  z-index: 2;
}

.id-fields {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.id-field {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}

.id-field:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.id-field dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-dim);
}

.id-field dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 6px;
  text-align: right;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-2);
  display: inline-block;
  flex-shrink: 0;
}

/* ---- Sections ---- */
.section {
  padding: 88px 0;
  border-bottom: 1px solid var(--border);
}

.section-alt {
  background: var(--surface);
}

.file-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 44px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.file-num {
  color: var(--bg);
  background: var(--accent);
  padding: 3px 8px;
  border-radius: var(--radius);
  font-size: 0.8rem;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text {
  color: var(--ink-dim);
  font-size: 1.08rem;
  max-width: 62ch;
  margin: 0;
}

.stat-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin: 0;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  margin: 0;
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Skills */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.skill-card {
  background: var(--bg);
  padding: 28px 24px;
  transition: background 0.2s ease;
}

.section-alt .skill-card {
  background: var(--surface);
}

.skill-card:hover {
  background: var(--surface-2);
}

.skill-tag {
  display: inline-block;
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.78rem;
  margin-bottom: 14px;
}

.skill-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 8px;
}

.skill-card p {
  color: var(--ink-dim);
  font-size: 0.92rem;
  margin: 0;
}

/* Projects */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease;
  background: var(--bg);
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.project-media {
  aspect-ratio: 16 / 10;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-dim);
  overflow: hidden;
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-body {
  padding: 22px 22px 24px;
}

.project-body h3 {
  font-size: 1.12rem;
  font-weight: 600;
  margin: 0 0 8px;
}

.project-body p {
  color: var(--ink-dim);
  font-size: 0.92rem;
  margin: 0 0 14px;
}

.read-more {
  font-weight: 600;
  font-size: 0.88rem;
  font-family: var(--font-mono);
}

/* Contact */
.contact-wrap {
  max-width: 640px;
}

.contact-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 600;
  margin-bottom: 14px;
}

.contact-desc {
  color: var(--ink-dim);
  font-size: 1.05rem;
  margin: 0 0 32px;
}

.contact-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  padding: 28px 0;
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

/* Back to top */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  font-size: 1.05rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, border-color 0.2s ease;
  z-index: 40;
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

#back-to-top:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .id-card {
    justify-self: start;
    max-width: 320px;
  }

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

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .site-nav.open {
    max-height: 260px;
    padding: 8px 24px 20px;
  }

  .site-nav a {
    padding: 10px 0;
    width: 100%;
  }
}