@font-face {
  font-family: 'Bauhaus93';
  src: url('../fonts/Bauhaus93-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Alegreya';
  src: url('../fonts/Alegreya/Alegreya-VariableFont_wght.ttf') format('truetype-variations');
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Alegreya';
  src: url('../fonts/Alegreya/Alegreya-Italic-VariableFont_wght.ttf') format('truetype-variations');
  font-weight: 400 900;
  font-style: italic;
  font-display: swap;
}

:root {
  --teal: #2E7D76;
  --teal-dark: #1F5B56;
  --teal-tint: #EAF3F2;
  --black: #000000;
  --white: #FFFFFF;
  --text: #1A1A1A;
  --muted: #5B6664;
  --border: #E1E7E6;
  --sidenav-w: 288px;
  --max-w: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Alegreya', Georgia, serif;
  color: var(--text);
  background: var(--white);
  font-size: 18px;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: 'Alegreya', Georgia, serif;
  font-weight: 700;
  margin: 0 0 .5em;
  color: var(--black);
}

p { margin: 0 0 1em; }

a { color: var(--teal); }

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

/* ---------- Sidenav ---------- */

.sidenav {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidenav-w);
  border-right: 1px solid var(--border);
  padding: 32px 24px;
  overflow-y: auto;
  background: var(--white);
  z-index: 50;
}

.side-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  margin-bottom: 36px;
  padding: 20px 18px;
}

.side-logo img {
  width: 100%;
  max-width: 220px;
  height: auto;
}

.sidenav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidenav a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  text-decoration: none;
  color: var(--muted);
  font-family: 'Bauhaus93', fantasy;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: .03em;
  padding: 9px 10px;
  border-radius: 6px;
  transition: background .15s, color .15s;
}

.sidenav ul a span {
  font-family: 'Bauhaus93', fantasy;
  font-size: 14px;
  color: var(--teal);
  font-weight: 400;
  min-width: 22px;
}

.sidenav ul a:hover { background: var(--teal-tint); color: var(--black); }

.sidenav ul a.active {
  background: var(--teal);
  color: var(--white);
}
.sidenav ul a.active span { color: var(--white); }

.nav-toggle {
  display: none;
  position: fixed;
  top: 16px; right: 16px;
  z-index: 60;
  width: 44px; height: 44px;
  background: var(--teal);
  border: none;
  border-radius: 8px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--white);
  border-radius: 2px;
}

/* ---------- Layout ---------- */

main {
  margin-left: var(--sidenav-w);
}

.hero {
  background: var(--teal);
  padding: 56px 24px;
  text-align: center;
}

.hero-inner { max-width: 900px; margin: 0 auto; }

.hero-logo { width: 100%; max-width: 760px; margin: 0 auto; }

.hero-subbar {
  text-align: center;
  padding: 40px 24px 56px;
  border-bottom: 1px solid var(--border);
}

.hero-sub {
  font-family: 'Bauhaus93', fantasy;
  color: var(--black);
  font-size: 28px;
  text-transform: uppercase;
  margin: 0 0 24px;
}

.hero-kit-btn {
  display: inline-block;
  font-family: 'Alegreya', serif;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  color: var(--white);
  background: var(--teal);
  padding: 12px 28px;
  border-radius: 30px;
  transition: background .15s, color .15s;
}
.hero-kit-btn:hover { background: var(--black); color: var(--white); }

.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 32px;
  border-bottom: 1px solid var(--border);
}

.section h2 {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: 'Bauhaus93', fantasy;
  font-weight: 400;
  font-size: 40px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.num {
  font-family: 'Bauhaus93', fantasy;
  font-weight: 400;
  color: var(--teal);
  font-size: 40px;
}

.lead {
  max-width: 640px;
  color: var(--muted);
  font-size: 19px;
  margin-bottom: 48px;
}

.caption {
  color: var(--muted);
  font-size: 15px;
  font-family: 'Alegreya', serif;
}

/* ---------- Logo section ---------- */

.logo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.component-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.logo-card, .component-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.component-card { padding-bottom: 20px; }

.swatch-bg {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  min-height: 140px;
}
.swatch-bg.light { background: #F7F8F7; }
.swatch-bg.dark { background: var(--black); }
.swatch-bg.square { aspect-ratio: 1; }

.logo-card-meta { padding: 20px 22px 24px; }
.logo-card-meta h3, .component-card h3 { font-size: 20px; }
.logo-card-meta p, .component-card p {
  color: var(--muted);
  font-size: 15.5px;
  margin-bottom: 16px;
}
.component-card h3, .component-card p { padding-left: 22px; padding-right: 22px; }
.component-card h3 { margin-top: 18px; }

.dl-row { display: flex; flex-wrap: wrap; gap: 10px; }
.component-card .dl-row { padding-left: 22px; }

.dl-row a {
  font-family: 'Alegreya', serif;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  color: var(--teal);
  border: 1px solid var(--teal);
  border-radius: 6px;
  padding: 6px 12px;
  transition: background .15s, color .15s;
}
.dl-row a:hover { background: var(--teal); color: var(--white); }

/* ---------- Color ---------- */

.color-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.color-swatch {
  border: none;
  border-radius: 12px;
  padding: 32px 24px;
  height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  gap: 4px;
  cursor: pointer;
  font-family: 'Alegreya', serif;
  transition: transform .15s;
}
.color-swatch:hover { transform: translateY(-3px); }
.color-swatch.bordered { border: 1px solid var(--border); }

.color-name { font-size: 20px; font-weight: 700; }
.color-hex { font-size: 15px; opacity: .85; }
.color-rgb { font-size: 13px; opacity: .65; }

.copy-hint {
  margin-top: 14px;
  font-family: 'Alegreya', serif;
  font-size: 14px;
  color: var(--teal);
  height: 20px;
}

/* ---------- Typography ---------- */

.type-block {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  margin-bottom: 28px;
}

.type-block-head p { color: var(--muted); font-size: 16px; max-width: 680px; }

.bauhaus-heading {
  font-family: 'Bauhaus93', fantasy;
  font-weight: 400;
  text-transform: uppercase;
}

.tag {
  font-family: 'Alegreya', serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--teal);
  background: var(--teal-tint);
  padding: 4px 10px;
  border-radius: 20px;
  vertical-align: middle;
  margin-left: 8px;
}

.type-sample {
  font-family: 'Bauhaus93', fantasy;
  color: var(--teal);
  font-size: 96px;
  line-height: 1;
  margin: 24px 0;
  word-break: break-word;
}
.type-sample.small { font-size: 36px; }

.alegreya-sample {
  font-family: 'Alegreya', serif;
  font-weight: 700;
  font-size: 72px;
  color: var(--black);
  margin: 24px 0;
}

.weights p { font-size: 18px; margin-bottom: 14px; }

/* ---------- Backgrounds ---------- */

.bg-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.bg-card {
  border-radius: 12px;
  padding: 36px 20px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  min-height: 200px;
  justify-content: center;
}
.bg-card img { max-width: 100%; max-height: 90px; }
.bg-card span {
  font-family: 'Alegreya', serif;
  font-size: 13px;
  text-align: center;
}
.bg-white { background: var(--white); border: 1px solid var(--border); color: var(--muted); }
.bg-teal { background: var(--teal); color: var(--white); }
.bg-black { background: var(--black); color: var(--white); }
.bg-photo {
  background: linear-gradient(135deg, #274b47, #0d1f1d);
  color: var(--white);
}

/* ---------- Misuse ---------- */

.misuse-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.misuse-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.misuse-visual {
  background: #F7F8F7;
  min-height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
}
.misuse-visual img { width: 80px; height: 80px; }
.misuse-visual::before, .misuse-visual::after {
  content: '';
  position: absolute;
  width: 130%;
  height: 2px;
  background: #C0392B;
  top: 50%; left: -15%;
}
.misuse-visual::before { transform: rotate(20deg); }
.misuse-visual::after { transform: rotate(-20deg); }
.misuse-card p {
  padding: 18px 20px;
  font-size: 15px;
  color: var(--muted);
  margin: 0;
}

/* ---------- Illustrations ---------- */

.illu-hero {
  position: relative;
  background: #F7F8F7;
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 32px;
}

.illu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.illu-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: #FBFCFB;
  aspect-ratio: 1;
}
.illu-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  padding: 18px;
}

.illu-dl {
  position: absolute;
  inset: 0;
  display: flex;
  opacity: 0;
  transition: opacity .15s;
}
.illu-card:hover .illu-dl,
.illu-card:focus-within .illu-dl,
.illu-hero:hover .illu-dl,
.illu-hero:focus-within .illu-dl,
.mockup:hover .illu-dl,
.mockup:focus-within .illu-dl { opacity: 1; }

.illu-dl a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: 'Alegreya', serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  background: rgba(46, 125, 118, .88);
  transition: background .15s;
}
.illu-dl a:not(:last-child) { border-right: 1px solid rgba(255, 255, 255, .4); }
.illu-dl a:hover { background: rgba(31, 91, 86, .96); }

.illu-dl-groups {
  flex: 3;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255, 255, 255, .4);
}
.illu-dl-groups a:not(:last-child) { border-right: none; border-bottom: 1px solid rgba(255, 255, 255, .4); }

.mockup {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.mockup img { width: 100%; }
.mockup .caption { padding: 16px 20px; }

/* ---------- Email Signature ---------- */

.sig-preview {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #FBFCFB;
  padding: 36px;
  margin-bottom: 24px;
}
.sig-preview table { border-collapse: collapse; }
.sig-mark { padding-right: 18px; border-right: 2px solid var(--teal); vertical-align: middle; }
.sig-mark img { width: 60px; height: 60px; }
.sig-info { padding-left: 18px; vertical-align: top; }
.sig-name {
  font-family: 'Alegreya', serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--black);
}
.sig-role {
  font-family: 'Alegreya', serif;
  font-size: 14px;
  color: var(--teal);
  margin: 2px 0 8px;
}
.sig-contact {
  font-family: 'Alegreya', serif;
  font-size: 13px;
  color: var(--muted);
}

.sig-code {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.sig-code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #F7F8F7;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
  font-family: 'Alegreya', serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.sig-copy {
  font-family: 'Alegreya', serif;
  font-size: 13px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  color: var(--teal);
  background: var(--white);
  border: 1px solid var(--teal);
  border-radius: 6px;
  padding: 5px 12px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.sig-copy:hover { background: var(--teal); color: var(--white); }

.sig-code pre {
  margin: 0;
  padding: 20px;
  overflow-x: auto;
  background: #FBFCFB;
}
.sig-code code {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--black);
  white-space: pre;
}
.sig-code .copy-hint { padding: 0 18px 14px; margin: 0; }

/* ---------- Footer ---------- */

.footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 56px 32px 96px;
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--teal);
  font-family: 'Bauhaus93', fantasy;
  text-transform: uppercase;
  font-size: 46px;
}
.footer img { width: 96px; height: 96px; }
.footer p { margin: 0; }

/* ---------- Brand kit CTA ---------- */

.kit-cta {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 64px 32px 96px;
}
.kit-cta-card {
  background: var(--black);
  border-radius: 24px;
  padding: 56px 40px;
  text-align: center;
}
.kit-cta-mark {
  width: 80px;
  height: 80px;
  margin: 0 auto 28px;
  filter: brightness(0) invert(1);
}
.kit-cta-card h2 {
  font-family: 'Alegreya', serif;
  font-weight: 700;
  font-size: 34px;
  color: var(--white);
  margin-bottom: 16px;
}
.kit-cta-card p {
  color: rgba(255, 255, 255, .65);
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 32px;
}
.kit-cta-btn {
  display: inline-block;
  font-family: 'Alegreya', serif;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  color: var(--black);
  background: var(--white);
  padding: 14px 32px;
  border-radius: 30px;
  transition: background .15s, color .15s;
}
.kit-cta-btn:hover { background: var(--teal); color: var(--white); }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .sidenav {
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: 0 0 40px rgba(0,0,0,.15);
  }
  .sidenav.open { transform: translateX(0); }
  .nav-toggle { display: flex; }
  main { margin-left: 0; }
  .logo-grid, .component-grid, .misuse-grid { grid-template-columns: 1fr; }
  .color-grid { grid-template-columns: 1fr; }
  .bg-grid { grid-template-columns: repeat(2, 1fr); }
  .illu-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 64px 24px; }
  .hero { padding: 56px 24px 48px; }
  .type-sample { font-size: 56px; }
  .alegreya-sample { font-size: 48px; }
}