:root {
  --table-green: #3f6d46;
  --card-brown: #8b4324;
  --panel-tan: #d18b55;
  --panel-tan-light: #e0a16d;
  --paper: #f5f0e8;
  --ink: #24211f;
  --shadow: rgba(29, 16, 8, 0.38);
  --max-width: 1100px;
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
  background:
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    var(--table-green);
  background-size: 42px 42px;
}

button {
  font: inherit;
}

.site-shell {
  width: min(var(--max-width), calc(100% - 28px));
  margin: 28px auto;
  padding: clamp(18px, 3vw, 36px);
  background: var(--card-brown);
  box-shadow: 0 18px 38px var(--shadow);
  transform: rotate(-0.35deg);
}

.paper-panel {
  background: var(--panel-tan);
  box-shadow: 8px 10px 0 rgba(0,0,0,.18);
}

.site-header {
  width: min(760px, 92%);
  margin: 0 auto clamp(22px, 4vw, 36px);
  padding: 14px 20px;
  transform: rotate(.45deg);
}

.home-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.banner {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(1px 2px 0 rgba(0,0,0,.16));
}

.layout {
  display: grid;
  grid-template-columns: minmax(150px, 240px) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 40px);
  align-items: start;
}

.sidebar {
  padding: 24px 18px;
  transform: rotate(.25deg);
}

.paper-nav {
  display: block;
  width: 100%;
  margin: 0 0 20px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  filter: drop-shadow(3px 4px 0 rgba(0,0,0,.18));
  transition: transform .12s ease, filter .12s ease;
}

.paper-nav:nth-child(2) { transform: rotate(-1.2deg); }
.paper-nav:nth-child(3) { transform: rotate(.8deg); }
.paper-nav:nth-child(4) { transform: rotate(-.6deg); }

.paper-nav:hover,
.paper-nav:focus-visible {
  transform: translateY(-3px) rotate(0deg) scale(1.02);
  filter: drop-shadow(5px 7px 0 rgba(0,0,0,.23));
  outline: none;
}

.paper-nav.active img {
  outline: 3px dashed rgba(36, 33, 31, .28);
  outline-offset: 5px;
}

.paper-nav img {
  display: block;
  width: 100%;
  height: auto;
}

.content-wrap {
  min-height: 510px;
  padding: clamp(18px, 3vw, 34px);
  transform: rotate(-.25deg);
}

.paper-sheet {
  min-height: 440px;
  padding: clamp(22px, 4vw, 42px);
  background: var(--paper);
  box-shadow: 4px 5px 0 rgba(0,0,0,.14);
  transform: rotate(.35deg);
}

.content-card.loading {
  opacity: .65;
}

h1, h2, h3 {
  line-height: 1.15;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  letter-spacing: .02em;
}

h2 {
  margin-top: 2rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

p { max-width: 68ch; }

a { color: #673018; text-decoration-thickness: 2px; }

a:hover { color: #2d1208; }

.note {
  margin: 1.25rem 0;
  padding: 1rem 1.2rem;
  background: rgba(209, 139, 85, .22);
  border-left: 5px solid var(--panel-tan);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 18px;
  margin-top: 1.2rem;
}

.project-card,
.post-card {
  padding: 1rem;
  background: rgba(255,255,255,.55);
  box-shadow: 3px 4px 0 rgba(0,0,0,.12);
}

.post-card + .post-card { margin-top: 1rem; }

.back-link {
  display: inline-block;
  margin-bottom: 1rem;
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100% - 16px, var(--max-width));
    margin: 8px auto;
    padding: 16px;
    transform: none;
  }

  .site-header {
    width: 100%;
    padding: 10px;
  }

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

  .sidebar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    padding: 14px;
  }

  .paper-nav { margin: 0; }

  .content-wrap,
  .paper-sheet {
    min-height: auto;
  }
}