:root {
  --purple: #552575;
  --purple-deep: #2c1240;
  --purple-mid: #3d1a57;
  --purple-lift: #6b3590;
  --orange: #f34f2e;
  --green: #aec64b;
  --ink: #fff4ea;
  --muted: #c9b3dc;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--purple) radial-gradient(ellipse at 50% 0%, var(--purple-lift), var(--purple) 55%, var(--purple-deep)) fixed;
}

a { color: var(--green); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px 32px; }

/* Hero */
.hero { position: relative; overflow: hidden; background: radial-gradient(ellipse at 50% 40%, #62307f, var(--purple) 70%); }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 90px; background: linear-gradient(transparent, var(--purple-deep)); opacity: .5; }
.pattern { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(auto-fill, 58px); grid-auto-rows: 58px; gap: 22px; padding: 12px; justify-content: center; opacity: .12; overflow: hidden; }
.pattern img { width: 40px; height: 40px; object-fit: contain; filter: brightness(0) invert(1); }
.banner { position: relative; z-index: 1; display: block; width: 100%; max-width: 820px; margin: 0 auto; overflow: visible; }

/* Calendar header */
.cal-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; margin: 28px 0 12px; }
.cal-head h1 { margin: 0; font-size: clamp(2rem, 5vw, 2.8rem); color: var(--orange); }
.count { margin: 0; color: var(--muted); }
.count strong { color: var(--green); }

.dow, .grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; }
.dow { margin-bottom: 8px; color: var(--muted); font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; }
.dow li { padding-left: 4px; }

/* Doors */
.door { position: relative; aspect-ratio: 1 / 1.05; border-radius: var(--radius); overflow: hidden; }
.num {
  position: absolute; top: 8px; left: 10px; z-index: 1;
  font-weight: 700; font-size: 1.05rem;
}

.door.open { background: var(--purple-mid); border: 2px solid var(--purple-lift); box-shadow: inset 0 -4px 0 var(--green); transition: transform .15s, box-shadow .15s; }
.door.open a {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px; padding: 28px 8px 10px; color: var(--ink); text-decoration: none; text-align: center;
}
.door.open:hover, .door.open:focus-within { transform: translateY(-3px) rotate(-.6deg); box-shadow: inset 0 -4px 0 var(--green), 0 8px 18px rgba(0, 0, 0, .4); border-color: var(--orange); }
.door.open .num { color: var(--orange); }
.icon, .big-icon { object-fit: contain; border-radius: 18%; }
.icon { width: 52%; max-height: 52%; }
.noicon { display: grid; place-items: center; font-size: 2.2rem; }
.name { font-weight: 600; font-size: .95rem; line-height: 1.15; overflow-wrap: anywhere; }

.door.today { border-color: var(--green); animation: glow 2.4s ease-in-out infinite; }
.badge {
  position: absolute; top: 8px; right: 8px; z-index: 1; padding: 2px 8px; border-radius: 99px;
  background: var(--green); color: var(--purple-deep); font-size: .7rem; font-weight: 700; text-transform: uppercase;
}
@keyframes glow { 50% { box-shadow: inset 0 -4px 0 var(--green), 0 0 22px rgba(174, 198, 75, .55); } }

/* Locked doors */
.door.locked {
  background: linear-gradient(160deg, var(--purple-mid), var(--purple-deep));
  border: 2px solid rgba(255, 255, 255, .06);
  display: grid; place-items: center; color: var(--muted);
}
.door.locked::after { /* door knob */
  content: ""; position: absolute; right: 12px; top: 50%; width: 9px; height: 9px; border-radius: 50%; background: var(--orange); opacity: .55;
}
.door.locked .num { color: var(--muted); }
.lock { font-size: 1.6rem; opacity: .55; }

.hint { text-align: center; color: var(--muted); margin-top: 24px; }

/* Detail page */
.detail { max-width: 720px; padding-top: 20px; }
.back { display: inline-block; margin-bottom: 16px; text-decoration: none; }
.back:hover { text-decoration: underline; }
.card {
  position: relative; text-align: center; padding: 56px 24px 28px; border-radius: 20px;
  background: var(--purple-mid); border: 2px solid var(--purple-lift); box-shadow: inset 0 -6px 0 var(--green), 0 12px 30px rgba(0, 0, 0, .35);
}
.doorplate {
  position: absolute; top: -2px; left: 50%; transform: translateX(-50%); padding: 6px 20px; border-radius: 0 0 12px 12px;
  background: var(--orange); color: #fff; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; font-size: .85rem;
}
.big-icon { width: 128px; height: 128px; margin-bottom: 8px; }
.card h1 { margin: 8px 0; font-size: clamp(1.8rem, 6vw, 2.6rem); color: var(--orange); }
.idea { font-size: 1.15rem; line-height: 1.5; max-width: 34em; margin: 0 auto 22px; }
.links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 24px; }
.btn {
  padding: 10px 18px; border-radius: 99px; border: 2px solid var(--green); color: var(--green); text-decoration: none; font-weight: 600;
}
.btn:hover, .btn:focus-visible { background: var(--green); color: var(--purple-deep); }
.btn.primary { background: var(--orange); border-color: var(--orange); color: #fff; }
.btn.primary:hover, .btn.primary:focus-visible { background: #ff6a4a; border-color: #ff6a4a; color: #fff; }

.facts { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 32px; margin: 0; padding-top: 18px; border-top: 1px dashed rgba(255, 255, 255, .2); }
.facts dt { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.facts dd { margin: 2px 0 0; font-weight: 600; }

.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 20px; }
.pager a, .pager .off { flex: 1; }
.pager a { display: flex; flex-direction: column; padding: 12px 16px; border-radius: var(--radius); background: var(--purple-mid); color: var(--ink); text-decoration: none; border: 2px solid var(--purple-lift); }
.pager a:hover { border-color: var(--orange); }
.pager span { color: var(--muted); font-size: .8rem; }
.pager .next { text-align: right; }

.foot { text-align: center; color: var(--muted); font-size: .85rem; padding: 8px 16px 32px; }

/* Phones: drop the weekday grid, show doors in a flowing grid */
@media (max-width: 700px) {
  .dow, .pad { display: none; }
  .grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .name { font-size: .8rem; }
}

@media (prefers-reduced-motion: reduce) {
  .door.today { animation: none; }
  .door.open { transition: none; }
}


/* GitHub link on each open door */
.gh { position: absolute; right: 6px; bottom: 8px; z-index: 2; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; color: var(--muted); background: rgba(0, 0, 0, .25); }
.gh:hover, .gh:focus-visible { color: var(--purple-deep); background: var(--green); }
.door.open a.gh { inset: auto 6px 8px auto; padding: 0; flex-direction: row; gap: 0; }
.door.open a.gh { inset: 6px 6px auto auto; width: 26px; height: 26px; }
.door.today .badge { right: 38px; top: 9px; }

/* Narrow doors have no room for the badge beside the number and GitHub icon: perch it on the top edge instead */
@media (max-width: 960px) {
  .door.today { overflow: visible; }
  .door.today .badge { top: -10px; right: auto; left: 50%; transform: translateX(-50%); white-space: nowrap; }
}

/* Companion project on a detail page */
.related { margin-top: 20px; padding: 22px 24px; border-radius: 20px; background: var(--purple-mid); border: 2px solid var(--purple-lift); }
.related h2 { margin: 0 0 8px; color: var(--green); font-size: 1.3rem; }
.related p { line-height: 1.5; margin: 0 0 12px; }
.related ul { margin: 0 0 12px; padding-left: 1.2em; line-height: 1.5; }
.related .meta { color: var(--muted); font-size: .9rem; }