/* Cep Not — mini-app · blueprint grid, index cards */

:root {
  --cream:    #F3EEE1;
  --cream-2:  #EAE4D3;
  --cream-3:  #E0D9C4;
  --cobalt:   #1A3A8A;
  --cobalt-2: #284BA0;
  --crimson:  #C1272D;
  --crimson-2:#a51f24;
  --ink:      #14161A;
  --ink-2:    #3B4048;
  --grid:     rgba(26, 58, 138, 0.09);
  --grid-hard:rgba(26, 58, 138, 0.18);
  --font-sans: "Helvetica Neue", "Inter", "Arial", sans-serif;
  --font-display: "Helvetica Neue", "Inter", "Arial Black", sans-serif;
  --font-mono: "SFMono-Regular", "Consolas", "Menlo", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 20px 20px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 20px 20px,
    var(--cream);
  min-height: 100vh;
  padding-bottom: 40px;
  overflow-x: hidden;
}

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px;
  border-bottom: 2px solid var(--cobalt);
  background: var(--cream);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--cobalt);
}
.brand-mark {
  display: inline-block;
  width: 26px; height: 26px;
  background: var(--cobalt); color: var(--cream);
  text-align: center; line-height: 26px; font-size: 15px;
}
.brand-name {
  font-family: var(--font-mono);
  font-weight: 700; font-size: 13px;
  letter-spacing: 0.14em;
}
.stats {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.12em; color: var(--ink-2);
  text-transform: uppercase;
}

/* Toolbar */
.toolbar {
  display: flex; gap: 10px; padding: 18px;
  border-bottom: 2px solid var(--cobalt);
  background: var(--cream);
  align-items: stretch;
}
.search-input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.06em;
  padding: 12px 14px;
  border: 2px solid var(--cobalt);
  background: var(--cream);
  color: var(--ink);
  text-transform: uppercase;
}
.search-input::placeholder { color: var(--ink-2); }
.search-input:focus { outline: none; background: var(--cream-2); }

.btn-primary, .btn-ghost {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.12em;
  padding: 12px 18px;
  border: 2px solid var(--cobalt);
  background: var(--cobalt); color: var(--cream);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  text-transform: uppercase;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--cobalt-2); }
.btn-ghost {
  background: transparent; color: var(--cobalt);
}
.btn-ghost:hover { background: var(--cobalt); color: var(--cream); }
.btn-danger {
  border-color: var(--crimson); color: var(--crimson);
}
.btn-danger:hover { background: var(--crimson); color: var(--cream); }

/* Board — grid of cards */
.board {
  padding: 20px 18px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.card {
  background: var(--cream);
  border: 2px solid var(--cobalt);
  padding: 14px 14px 12px;
  cursor: pointer;
  transition: transform 0.08s, box-shadow 0.12s;
  position: relative;
  display: flex; flex-direction: column;
  min-height: 130px;
}
.card:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--cobalt);
}
.card-hdr {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 8px;
}
.card-tag {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.1em;
  color: var(--crimson); font-weight: 700;
}
.card-when {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.08em;
  color: var(--ink-2);
  text-transform: uppercase;
}
.card-text {
  flex: 1;
  font-size: 14px; line-height: 1.5;
  color: var(--ink);
  white-space: pre-wrap;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
}

/* Empty state */
.empty {
  padding: 80px 24px;
  text-align: center;
  color: var(--cobalt);
}
.empty-mark {
  font-size: 48px; margin-bottom: 16px;
}
.empty-title {
  font-family: var(--font-mono);
  font-size: 14px; letter-spacing: 0.16em;
  margin-bottom: 8px;
  color: var(--cobalt);
}
.empty-sub {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.12em;
  color: var(--ink-2);
}

/* Modal editor */
.modal {
  position: fixed; inset: 0;
  background: rgba(20, 22, 26, 0.6);
  display: flex; justify-content: center; align-items: flex-end;
  z-index: 100;
  padding: 20px;
}
@media (min-width: 600px) {
  .modal { align-items: center; }
}
.modal-sheet {
  width: 100%; max-width: 560px;
  background: var(--cream);
  border: 2px solid var(--cobalt);
  display: flex; flex-direction: column;
  max-height: calc(100vh - 40px);
}
.modal-hdr {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px;
  border-bottom: 2px solid var(--cobalt);
}
.modal-tag {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.14em; color: var(--crimson);
  font-weight: 700;
}
.modal-close {
  border: none; background: transparent;
  font-size: 20px; color: var(--cobalt); cursor: pointer;
  padding: 4px 10px;
  font-family: var(--font-mono);
}
.modal-close:hover { color: var(--crimson); }
.editor {
  flex: 1;
  min-height: 200px;
  padding: 16px;
  border: none;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 20px 20px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 20px 20px,
    var(--cream);
  font-family: var(--font-sans);
  font-size: 15px; line-height: 1.6;
  color: var(--ink); resize: none;
}
.editor:focus { outline: none; background:
  linear-gradient(var(--grid-hard) 1px, transparent 1px) 0 0 / 20px 20px,
  linear-gradient(90deg, var(--grid-hard) 1px, transparent 1px) 0 0 / 20px 20px,
  var(--cream);
}
.modal-foot {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  border-top: 2px solid var(--cobalt);
}
.spacer { flex: 1; }