/* ============================================================
   Trailvault — placeholder site
   Aesthetic: USGS topographic quadrangle. Dark sheet, paper text,
   hot road-orange for the trail.
   ============================================================ */

:root {
  --bg: #0c0d0a;
  --paper: #d8d4c2;
  --paper-dim: #84827a;
  --paper-faint: #3a3a32;
  --rule: #6e6c63;
  --trail: #c89c3a;
  --trail-dim: #8a6a1e;

  --serif: 'Bodoni Moda', 'Didot', 'Bodoni 72', 'Times New Roman', serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

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

html, body {
  background: var(--bg);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--paper-dim);
  padding-bottom: 1px;
  transition: border-color 0.2s;
}
a:hover { border-bottom-color: var(--trail); color: var(--trail); }

/* ============================================================
   The Sheet — single map page
   ============================================================ */

.sheet {
  position: relative;
  width: min(1400px, calc(100vw - 80px));
  margin: 40px auto;
  min-height: calc(100vh - 80px);
  padding: 80px 80px 60px;
  display: grid;
  grid-template-columns: 1fr 360px;
  grid-template-rows: auto 1fr auto auto;
  grid-template-areas:
    "masthead masthead"
    "mapface  titleblock"
    "elevation elevation"
    "colophon colophon";
  gap: 40px 50px;
}

/* ============================================================
   Neatline (outer map border)
   ============================================================ */

.neatline {
  position: absolute;
  inset: 24px;
  border: 1px solid var(--paper-dim);
  pointer-events: none;
  /* Inner ruling */
}
.neatline::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid var(--paper-faint);
}

.corner {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--paper-dim);
  background: var(--bg);
  padding: 4px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.corner em {
  font-style: normal;
  white-space: nowrap;
}
.corner-nw { top: -8px; left: 16px; }
.corner-ne { top: -8px; right: 16px; text-align: right; }
.corner-sw { bottom: -8px; left: 16px; }
.corner-se { bottom: -8px; right: 16px; text-align: right; }

/* Tick marks along edges */
.tick {
  position: absolute;
  background: var(--paper-dim);
}
.tick-n, .tick-s { width: 1px; height: 8px; }
.tick-e, .tick-w { width: 8px; height: 1px; }
.tick-n { top: -4px; }
.tick-s { bottom: -4px; }
.tick-w { left: -4px; }
.tick-e { right: -4px; }

/* ============================================================
   Masthead (top marginalia)
   ============================================================ */

.masthead {
  grid-area: masthead;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--paper-dim);
  text-transform: uppercase;
  border-bottom: 1px solid var(--paper-faint);
  padding-bottom: 16px;
}
.series { color: var(--paper); font-weight: 700; letter-spacing: 0.18em; }
.series-sub {
  margin-top: 4px;
  text-transform: none;
  letter-spacing: 0.02em;
  color: var(--paper-dim);
  font-size: 11px;
}
.series-sub strong {
  color: var(--paper);
  font-weight: 500;
}
.masthead-right {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: var(--trail);
}
.masthead-right .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--trail);
  box-shadow: 0 0 8px var(--trail);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ============================================================
   Map Face (the main hero with trail SVG + wordmark)
   ============================================================ */

.map-face {
  grid-area: mapface;
  position: relative;
  border: 1px solid var(--paper-faint);
  background: var(--bg);
  min-height: 540px;
  overflow: hidden;
}

.map-svg {
  width: 100%;
  height: 100%;
  display: block;
  position: absolute;
  inset: 0;
}

/* Trail draw animation — uses pathLength="1" trick */
.trail {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  filter: drop-shadow(0 0 6px rgba(242, 77, 0, 0.4));
  animation: draw-trail 7s cubic-bezier(0.65, 0, 0.35, 1) 0.6s forwards;
}
@keyframes draw-trail {
  to { stroke-dashoffset: 0; }
}

.terminus {
  animation: fade-in 0.6s ease 1s forwards;
}
.terminus-end {
  animation-delay: 7.4s;
}
.pulse {
  transform-origin: center;
  transform-box: fill-box;
  animation: pulse-ring 2s ease-out 8s infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(2.4); opacity: 0; }
}
@keyframes fade-in {
  to { opacity: 1; }
}

/* Wordmark, layered over the map */
.wordmark {
  position: absolute;
  top: 28px;
  left: 32px;
  z-index: 2;
  pointer-events: none;
  animation: fade-in 0.8s ease 0.2s backwards;
  opacity: 0;
  animation-fill-mode: forwards;
}
.wordmark h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(40px, 9vw, 110px);
  letter-spacing: -0.025em;
  line-height: 0.9;
  color: var(--paper);
  margin: 0;
  text-shadow: 0 1px 0 rgba(0,0,0,0.5);
}
.wordmark-sub {
  margin-top: 14px;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--paper-dim);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.wordmark-sub .bullet { color: var(--paper-faint); }

/* ============================================================
   Elevation Profile
   ============================================================ */

.elevation {
  grid-area: elevation;
  border-top: 1px solid var(--paper-faint);
  padding-top: 14px;
}
.elevation-header {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--paper-dim);
  margin-bottom: 8px;
  text-transform: uppercase;
  flex-wrap: wrap;
  gap: 8px;
}
.elevation-meta em {
  font-style: italic;
  color: var(--trail);
  letter-spacing: 0.02em;
  text-transform: none;
}
.elevation-svg {
  width: 100%;
  height: 90px;
  display: block;
}
.elevation-line {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw-trail 3s ease 4s forwards;
}
.elevation-fill {
  opacity: 0;
  animation: fade-in 1.2s ease 6s forwards;
}

/* ============================================================
   Title Block (bottom-right cartouche)
   ============================================================ */

.title-block {
  grid-area: titleblock;
  border: 1px solid var(--paper-faint);
  padding: 24px 26px;
  background: linear-gradient(0deg, rgba(216, 212, 194, 0.015), rgba(216, 212, 194, 0.025));
  align-self: end;
  font-size: 12px;
}
.title-block-top { margin-bottom: 16px; }
.title-block-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.title-block-tag {
  font-size: 13px;
  font-style: italic;
  color: var(--paper-dim);
  letter-spacing: 0.01em;
}
.title-block-rule {
  height: 1px;
  background: var(--paper-faint);
  margin: 14px 0;
}

.title-block-specs {
  display: grid;
  gap: 8px;
  font-size: 11px;
}
.title-block-specs > div {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  align-items: baseline;
}
.title-block-specs dt {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.title-block-specs dd { color: var(--paper); }

/* Signup form */
.signup { margin-top: 6px; }
.signup label {
  display: block;
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--paper-dim);
  margin-bottom: 8px;
}
.signup-row {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--paper-dim);
  transition: border-color 0.2s;
}
.signup-row:focus-within { border-bottom-color: var(--trail); }
.signup input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font: inherit;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--paper);
  padding: 8px 0;
}
.signup input::placeholder { color: var(--paper-faint); }
.signup button {
  background: transparent;
  border: none;
  color: var(--paper);
  font: inherit;
  font-size: 18px;
  padding: 0 4px;
  cursor: pointer;
  transition: color 0.2s, transform 0.2s;
  font-family: var(--mono);
}
.signup button:hover { color: var(--trail); transform: translateX(3px); }
.signup-msg {
  margin-top: 8px;
  font-size: 11px;
  color: var(--trail);
  min-height: 16px;
}

/* ============================================================
   Colophon (footer, very bottom)
   ============================================================ */

.colophon {
  grid-area: colophon;
  border-top: 1px solid var(--paper-faint);
  padding-top: 14px;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--paper-dim);
  text-transform: uppercase;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.colophon a {
  color: var(--paper);
  border-bottom: none;
  text-transform: lowercase;
  letter-spacing: 0;
  font-size: 11px;
}
.colophon a:hover { color: var(--trail); }
.bullet { color: var(--paper-faint); }

/* ============================================================
   Responsive: stack on mobile
   ============================================================ */

@media (max-width: 920px) {
  .sheet {
    width: calc(100vw - 32px);
    margin: 16px auto;
    padding: 56px 28px 32px;
    grid-template-columns: 1fr;
    grid-template-areas:
      "masthead"
      "mapface"
      "titleblock"
      "elevation"
      "colophon";
    gap: 28px;
  }
  .neatline { inset: 12px; }
  .corner { font-size: 9px; padding: 3px 6px; }
  .corner-nw, .corner-sw { left: 8px; }
  .corner-ne, .corner-se { right: 8px; }
  .map-face { min-height: 380px; }
  .wordmark { top: 18px; left: 18px; }
  .title-block { align-self: stretch; }
  .masthead { flex-direction: column; gap: 12px; align-items: flex-start; }
}

@media (max-width: 480px) {
  .wordmark {
    top: 14px;
    left: 14px;
    right: 14px;
  }
  .wordmark h1 {
    font-size: clamp(28px, 9.6vw, 52px);
    letter-spacing: -0.04em;
  }
  .wordmark-sub { font-size: 9px; gap: 6px; }
  .colophon { font-size: 9px; }
  /* Hide horizontal tick marks on the sheet sides on mobile to avoid overlap */
  .tick-w, .tick-e { display: none; }
}