/* Termine — black & white, responsive. Art direction can layer on top; keep
   the structural rules (grid, borders) stable. */

:root {
  --ink: #000;
  --paper: #fff;
  --line: #999;
  --line-soft: #ccc;
  --shade: #f2f2f2;
  --muted: #777;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  color: var(--ink);
  background: var(--paper);
}

body.termine {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.35;
  font-size: 16px;
}

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

/* ---------------------------------------------------------------- login */

main.login {
  max-width: 22rem;
  margin: 12vh auto 0;
  padding: 0 1rem;
}

main.login h1 { font-size: 1.6rem; }

main.login form {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-top: 1rem;
}

main.login label { font-weight: 600; }

input[type="password"] {
  font: inherit;
  padding: .5rem .6rem;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  width: 100%;
}

button {
  font: inherit;
  padding: .5rem .8rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
}

button:hover { background: var(--paper); color: var(--ink); }

.error {
  border: 1px solid var(--ink);
  padding: .5rem .7rem;
  background: var(--shade);
}

.muted { color: var(--muted); }

/* ------------------------------------------------------------------ app */

main.app {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

header.app-head {
  max-width: 62rem;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

header.app-head h1 { font-size: 1.4rem; margin: 0; }

/* ------------------------------------------------------------ calendar */

.calendar {
  border: 1px solid var(--ink);
}

.cal-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ink);
  padding: .4rem .6rem;
}

.cal-nav .nav {
  font-size: 1.4rem;
  line-height: 1;
  text-decoration: none;
  padding: .2rem .6rem;
  border: 1px solid var(--paper);
}

.cal-nav .nav:hover { border-color: var(--ink); }

.cal-title { font-size: 1.1rem; margin: 0; }

.grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.dow {
  font-weight: 700;
  text-align: center;
  padding: .35rem .2rem;
  border-bottom: 1px solid var(--ink);
  border-right: 1px solid var(--line-soft);
  font-size: .85rem;
}

.dow:nth-child(7n) { border-right: 0; }

.day {
  min-height: 6rem;
  border-bottom: 1px solid var(--line-soft);
  border-right: 1px solid var(--line-soft);
  padding: .3rem;
  overflow-wrap: anywhere;
}

.day:nth-child(7n) { border-right: 0; }

.day.today { background: var(--shade); }
.day.today .dnum { text-decoration: underline; text-underline-offset: 2px; }

.dnum { font-weight: 700; font-size: .8rem; }

.evs { list-style: none; margin: .2rem 0 0; padding: 0; }

.event .ev {
  display: block;
  text-decoration: none;
  border-left: 3px solid var(--ink);
  padding: .05rem .3rem;
  margin: .15rem 0;
  font-size: .8rem;
  background: var(--paper);
}

.event .ev:hover { background: var(--shade); }

.event .time { font-variant-numeric: tabular-nums; color: var(--muted); }

/* -------------------------------------------------------------- detail */

.detail:empty { display: none; }

.detail {
  margin-top: 1rem;
  border: 1px solid var(--ink);
}

.detail-inner { padding: .8rem 1rem; position: relative; }

.detail-inner h3 { margin: 0 1.5rem .4rem 0; }

.detail .close {
  position: absolute;
  top: .3rem;
  right: .3rem;
  padding: 0 .45rem;
  font-size: 1.1rem;
  line-height: 1.4;
}

.detail .when { font-weight: 600; margin: .2rem 0; }
.detail .where { margin: .2rem 0; }
.detail .desc { margin: .5rem 0 0; white-space: normal; }
.detail .who { margin: .35rem 0 0; color: var(--muted); font-size: .85rem; }

/* ---------------------------------------------------------------- help */

.cal-help {
  margin-top: 1.5rem;
  padding-top: .8rem;
  border-top: 1px solid var(--line-soft);
  font-size: .85rem;
  color: var(--muted);
}

.cal-help h2 {
  margin: 0 0 .4rem;
  font-size: .95rem;
  color: var(--ink);
}

.cal-help p { margin: .4rem 0; }

.cal-help code {
  font-size: .95em;
  background: var(--shade);
  padding: 0 .2rem;
}

/* ---------------------------------------------------------- responsive */

@media (max-width: 560px) {
  body.termine { font-size: 15px; }
  .day { min-height: 4.5rem; padding: .2rem; }
  .event .ev { font-size: .72rem; border-left-width: 2px; padding: .05rem .15rem; }
  .dow { font-size: .72rem; }
  .cal-title { font-size: .95rem; }
  main.app, header.app-head { padding-left: .5rem; padding-right: .5rem; }
}