:root {
  --bg: #17181b;
  --surface: #2d333a;
  --surface-2: #23282f;
  --text: #f2ede4;
  --muted: #b5ab9d;
  --accent: #e06922;
  --accent-2: #c6a05c;
  --border: #454d56;

  --font-body: "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-stamp: "Consolas", "SFMono-Regular", Menlo, monospace;

  --space-1: 0.4rem;
  --space-2: 0.65rem;
  --space-3: 0.95rem;
  --space-4: 1.3rem;
  --space-5: 1.9rem;
  --space-6: 2.7rem;
  --space-7: 3.4rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.85rem;
  --radius-lg: 1.15rem;

  --container-max: 75rem;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font-body);
  line-height: 1.62;
  letter-spacing: 0.01em;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(224, 105, 34, 0.09), transparent 48%),
    linear-gradient(rgba(24, 24, 26, 0.66), rgba(24, 24, 26, 0.7)),
    image-set(url("/assets/img/metal-texture.png") 1x, url("/assets/img/metal-texture-cropped.png") 2x);
  background-size: cover, cover, 120% auto;
  background-position: center top, center top, center top;
  background-repeat: no-repeat, no-repeat, no-repeat;
}

h1,
h2,
h3 {
  margin-top: 0;
  margin-bottom: var(--space-2);
  line-height: 1.2;
}

p,
ul,
ol {
  margin-top: 0;
}

a {
  color: var(--accent-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  text-decoration-color: transparent;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover {
  color: #f3be8f;
  text-decoration-color: var(--accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container {
  width: min(100% - 2rem, var(--container-max));
  margin-inline: auto;
}

.section {
  padding: var(--space-6) 0;
}

.section-title {
  margin-bottom: var(--space-3);
}

.section-lead {
  margin-bottom: var(--space-5);
  max-width: 58rem;
  color: var(--muted);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid #333940;
  background: rgba(23, 24, 27, 0.95);
  backdrop-filter: blur(8px);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  opacity: 0.1;
  background:
    linear-gradient(rgba(20, 20, 22, 0.3), rgba(20, 20, 22, 0.3)),
    image-set(url("/assets/img/wood-grain.png") 1x, url("/assets/img/wood-texture-cropped.png") 2x);
  background-size: auto, 360px 360px;
  background-repeat: no-repeat, repeat;
  pointer-events: none;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-2), transparent);
}

.header-inner {
  position: relative;
  min-height: 4.45rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--text);
}

.site-logo {
  height: 40px;
  width: auto;
  display: block;
}

.brand-text {
  font-weight: 700;
  letter-spacing: 0.03em;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-1);
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.42rem 0.6rem;
  border-radius: var(--radius-sm);
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0.5rem;
  right: 0.5rem;
  bottom: 0.18rem;
  height: 2px;
  border-radius: 999px;
  background: transparent;
}

.site-nav a:hover,
.page-home .site-nav a[href="index.html"],
.page-projects .site-nav a[href="projects.html"],
.page-services .site-nav a[href="services.html"],
.page-about .site-nav a[href="about.html"],
.page-books .site-nav a[href="books.html"],
.page-contact .site-nav a[href="contact.html"] {
  color: var(--text);
}

.site-nav a:hover::after,
.page-home .site-nav a[href="index.html"]::after,
.page-projects .site-nav a[href="projects.html"]::after,
.page-services .site-nav a[href="services.html"]::after,
.page-about .site-nav a[href="about.html"]::after,
.page-books .site-nav a[href="books.html"]::after,
.page-contact .site-nav a[href="contact.html"]::after {
  background: var(--accent);
  box-shadow: 0 0 7px rgba(224, 105, 34, 0.44);
}

.nav-toggle {
  display: none;
  font: inherit;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 0.4rem 0.72rem;
}

.page-header {
  padding-top: var(--space-7);
}

.page-header h1 {
  font-size: clamp(1.95rem, 4.2vw, 2.95rem);
}

.page-header p {
  max-width: 58rem;
  color: var(--muted);
}

.hero {
  padding-top: var(--space-6);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.hero-brand-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.hero-logo {
  width: clamp(4.8rem, 10vw, 7rem);
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(198, 160, 92, 0.28);
}

.hero-copy h1 {
  margin-bottom: 0;
}

.hero-copy p {
  max-width: 42rem;
  color: var(--muted);
  margin-bottom: var(--space-5);
}

.hero-panel {
  margin-top: 0.2rem;
  background:
    linear-gradient(180deg, rgba(56, 52, 46, 0.95), rgba(42, 38, 34, 0.95)),
    repeating-linear-gradient(
      0deg,
      rgba(190, 160, 112, 0.07),
      rgba(190, 160, 112, 0.07) 1px,
      transparent 1px,
      transparent 26px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(190, 160, 112, 0.05),
      rgba(190, 160, 112, 0.05) 1px,
      transparent 1px,
      transparent 26px
    );
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.btn,
.button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  padding: 0.64rem 1.02rem;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary,
.button-primary {
  color: #251306;
  background: linear-gradient(180deg, #eb8233, var(--accent));
  border-color: #b9541a;
  box-shadow: 0 6px 12px rgba(224, 105, 34, 0.24);
}

.btn-primary:hover,
.button-primary:hover {
  color: #251306;
  filter: brightness(1.03);
}

.btn-secondary,
.button-secondary {
  color: var(--text);
  background: linear-gradient(180deg, #313840, #262c33);
  border-color: #5a636d;
}

.btn-secondary:hover,
.button-secondary:hover {
  border-color: var(--accent);
  color: #fff2e6;
}

.card-grid {
  display: grid;
  gap: var(--space-4);
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stack,
.notes-bench {
  grid-template-columns: 1fr;
}

.card,
.workbench-panel {
  position: relative;
  border: 1px solid #5a5247;
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: linear-gradient(180deg, rgba(62, 58, 52, 0.94), rgba(42, 39, 35, 0.95));
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.22);
}

.card::before,
.workbench-panel::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: calc(var(--radius-md) - 2px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  pointer-events: none;
}

.card::after,
.workbench-panel::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  top: 10px;
  right: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #a39888, #6a6258 62%, #4b453d 100%);
  opacity: 0.58;
  pointer-events: none;
}

.card h2,
.card h3 {
  margin-bottom: var(--space-2);
}

.card p:last-child {
  margin-bottom: 0;
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.panel-kicker,
.stamp-chip,
.chip-link,
.jump-nav h2 {
  font-family: var(--font-stamp);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.panel-kicker {
  font-size: 0.78rem;
  margin-bottom: var(--space-3);
  color: #d4c8b6;
}

.stamp-chip,
.chip-link {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid #63604f;
  background: linear-gradient(180deg, #3a3730, #2e2b25);
  color: #e0d8cc;
  font-size: 0.74rem;
  padding: 0.22rem 0.62rem;
  text-decoration: none;
}

.chip-link:hover {
  border-color: var(--accent);
  color: #ffe9d6;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.forge-list {
  margin: var(--space-3) 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.callout,
.blueprint-callout {
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.callout-blueprint,
.blueprint-callout {
  border: 1px solid #8d8f92;
  background: linear-gradient(180deg, rgba(222, 231, 238, 0.94), rgba(212, 222, 230, 0.93));
  color: #3f556a;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.18);
}

.principles-note {
  background:
    linear-gradient(180deg, rgba(222, 231, 238, 0.95), rgba(212, 222, 230, 0.94)),
    repeating-linear-gradient(
      0deg,
      rgba(64, 102, 137, 0.1),
      rgba(64, 102, 137, 0.1) 1px,
      transparent 1px,
      transparent 24px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(64, 102, 137, 0.07),
      rgba(64, 102, 137, 0.07) 1px,
      transparent 1px,
      transparent 24px
    );
}

.callout-blueprint p,
.callout-blueprint li,
.blueprint-callout p,
.blueprint-callout li {
  color: #3f556a;
}

.callout-blueprint h2,
.callout-blueprint h3,
.blueprint-callout h2,
.blueprint-callout h3 {
  color: #203140;
}

.list-clean {
  margin: 0;
  padding-left: 1.1rem;
}

.projects-layout {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 16rem 1fr;
  align-items: start;
}

.jump-nav {
  position: sticky;
  top: 5.3rem;
  border: 1px solid #5b5448;
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: linear-gradient(180deg, #3d3932, #302c26);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.22);
}

.jump-nav h2 {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: var(--space-3);
}

.jump-nav .chip-row {
  gap: var(--space-1);
}

.focus-card {
  scroll-margin-top: 6rem;
}

.focus-card p {
  margin-bottom: var(--space-2);
}

.focus-links {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-footer {
  position: relative;
  margin-top: var(--space-6);
  border-top: 1px solid #333940;
  background: linear-gradient(180deg, rgba(29, 31, 34, 0.92), rgba(21, 23, 25, 0.96));
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  opacity: 0.08;
  background:
    linear-gradient(rgba(18, 18, 20, 0.34), rgba(18, 18, 20, 0.34)),
    image-set(url("/assets/img/wood-grain.png") 1x, url("/assets/img/wood-texture-cropped.png") 2x);
  background-size: auto, 360px 360px;
  background-repeat: no-repeat, repeat;
}

.footer-inner {
  min-height: 4.6rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  color: var(--muted);
}

.response-note {
  margin-top: var(--space-3);
  margin-bottom: 0;
  color: var(--muted);
}

@media (max-width: 66rem) {
  .hero-brand-lockup {
    align-items: flex-start;
  }

  .hero-logo {
    width: clamp(4.4rem, 18vw, 6.2rem);
  }

  .hero-grid,
  .projects-layout,
  .grid-3,
  .grid-2,
  .focus-links {
    grid-template-columns: 1fr;
  }

  .jump-nav {
    position: static;
  }
}

@media (max-width: 52rem) {
  body {
    background-size: cover, cover, 180% auto;
    background-position: center top, center top, 58% top;
  }
  .site-logo {
    height: 30px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.45rem);
    right: 0;
    width: min(16rem, calc(100vw - 2rem));
    padding: var(--space-2);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: linear-gradient(180deg, #313840, #262d34);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.24);
    display: none;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav.is-open {
    display: block;
  }
}