/* =========================================================================
   TC Buchung – Design-System
   Frisches, "Tennisplatz"-inspiriertes Theme: Sandplatz-Terrakotta trifft
   Rasen-Grün und Linien-Weiß. Bewusst nicht das übliche Bootstrap-Grau.
   ========================================================================= */

:root {
  /* Markenfarben */
  --clay: #c2562e;          /* Sandplatz */
  --clay-dark: #a7431f;
  --grass: #2f8f5b;         /* Rasen */
  --grass-dark: #246e46;
  --court-line: #f4f1ea;    /* Linienweiß / Hintergrund */
  --ink: #1d2421;          /* Text */
  --ink-soft: #5c6b63;
  --net: #d9d2c5;          /* Rahmen / Linien */
  --surface: #ffffff;
  --surface-2: #faf8f3;

  /* Status */
  --free: #2f8f5b;
  --busy: #c2562e;
  --blocked: #6b7280;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 10px 30px -12px rgba(29, 36, 33, 0.28);
  --shadow-sm: 0 2px 8px -3px rgba(29, 36, 33, 0.25);
  --ring: 0 0 0 3px rgba(47, 143, 91, 0.28);
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 100% -10%, rgba(47, 143, 91, 0.10), transparent 60%),
    radial-gradient(1000px 500px at -10% 110%, rgba(194, 86, 46, 0.10), transparent 55%),
    var(--court-line);
  min-height: 100vh;
  line-height: 1.55;
}

a { color: var(--grass-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Layout --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid var(--net);
}
.site-header .bar {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.15rem;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand-logo {
  height: 42px;
  width: auto;
  display: block;
}
.brand-name { white-space: nowrap; }
@media (max-width: 540px) {
  /* Auf schmalen Screens spricht das Logo für sich. */
  .brand-name { display: none; }
}
.nav { margin-left: auto; display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; }
.nav a, .nav .navlink {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.92rem;
}
.nav a:hover { background: var(--surface-2); color: var(--ink); text-decoration: none; }
.nav .user { color: var(--ink); font-weight: 700; }
.nav-divider {
  width: 1px;
  height: 22px;
  background: var(--net);
  margin: 0 0.25rem;
}
.nav-group-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  font-weight: 800;
  padding: 0 0.15rem;
}
.nav-badge {
  display: inline-block;
  min-width: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--clay);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 18px;
  text-align: center;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

/* --- Hero ------------------------------------------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  border-radius: calc(var(--radius) + 6px);
  padding: 3rem 2.5rem;
  color: #fff;
  background:
    linear-gradient(135deg, var(--grass) 0%, var(--grass-dark) 55%, #1c5436 100%);
  box-shadow: var(--shadow);
}
.hero::after {
  /* Tennisplatz von oben: Außenlinien, Aufschlagfelder, Mittel- und Netzlinie. */
  content: "";
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20240%20120'%20preserveAspectRatio='none'%3E%3Cg%20fill='none'%20stroke='%23ffffff'%20stroke-opacity='0.14'%20stroke-width='1.4'%3E%3Crect%20x='10'%20y='10'%20width='220'%20height='100'/%3E%3Cline%20x1='10'%20y1='22.5'%20x2='230'%20y2='22.5'/%3E%3Cline%20x1='10'%20y1='97.5'%20x2='230'%20y2='97.5'/%3E%3Cline%20x1='60.8'%20y1='22.5'%20x2='60.8'%20y2='97.5'/%3E%3Cline%20x1='179.2'%20y1='22.5'%20x2='179.2'%20y2='97.5'/%3E%3Cline%20x1='60.8'%20y1='60'%20x2='179.2'%20y2='60'/%3E%3Cline%20x1='10'%20y1='60'%20x2='18'%20y2='60'/%3E%3Cline%20x1='222'%20y1='60'%20x2='230'%20y2='60'/%3E%3C/g%3E%3Cline%20x1='120'%20y1='6'%20x2='120'%20y2='114'%20stroke='%23ffffff'%20stroke-opacity='0.2'%20stroke-width='2.2'/%3E%3C/svg%3E");
  background-size: 100% 100%;
  background-repeat: no-repeat;
  pointer-events: none;
}
.hero-logo {
  position: relative;
  display: inline-flex;
  background: #fff;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.4rem;
}
.hero-logo img { height: 84px; width: auto; display: block; }
.hero h1 { position: relative; margin: 0 0 0.6rem; font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.03em; }
.hero p { position: relative; margin: 0 0 1.4rem; font-size: 1.1rem; max-width: 48ch; opacity: .95; }
.hero .actions { position: relative; display: flex; gap: 0.7rem; flex-wrap: wrap; }

/* --- Buttons -------------------------------------------------------------- */
.btn {
  --bg: var(--grass);
  --fg: #fff;
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  border: none;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform .08s ease, box-shadow .15s ease, background .15s ease;
  box-shadow: var(--shadow-sm);
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn--clay { --bg: var(--clay); }
.btn--clay:hover { background: var(--clay-dark); }
.btn--ghost {
  --bg: transparent; --fg: var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--net);
}
.btn--ghost:hover { background: var(--surface-2); }
/* Ghost-Variante für dunkle/grüne Flächen: weiße Schrift, Hover bleibt lesbar. */
.btn--ghost-light {
  --bg: transparent; --fg: #fff;
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.55);
}
.btn--ghost-light:hover { background: rgba(255, 255, 255, 0.16); }
.btn--light { --bg: #fff; --fg: var(--grass-dark); }
.btn--sm { padding: 0.4rem 0.75rem; font-size: 0.85rem; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* --- Panels / Forms ------------------------------------------------------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--net);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
  max-width: 460px;
}
.panel.wide { max-width: none; }
/* Seiten mit Formular + Liste auf einheitliche Breite begrenzen. */
.page-narrow { max-width: 620px; }
h1.page, h2.page { letter-spacing: -0.02em; }

.field { margin-bottom: 1rem; }
.field label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }
.field input:not([type="checkbox"]):not([type="radio"]),
.field select,
.field textarea {
  width: 100%;
  padding: 0.65rem 0.8rem;
  border: 1.5px solid var(--net);
  border-radius: var(--radius-sm);
  font: inherit;
  background: var(--surface-2);
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.field input:not([type="checkbox"]):not([type="radio"]):focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--grass);
  background: #fff;
  box-shadow: var(--ring);
}

/* Mehrfachauswahl (CheckboxSelectMultiple / RadioSelect): saubere Häkchenliste. */
.check-list {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.35rem;
}
.check-list .check-inline { font-weight: 600; }
.field .help { font-size: 0.8rem; color: var(--ink-soft); margin-top: 0.25rem; }
.check-inline {
  display: flex !important;
  align-items: center;
  gap: 0.55rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 0 !important;
}
.check-inline input[type="checkbox"] { width: auto; margin: 0; flex: 0 0 auto; accent-color: var(--grass); }
.field .errors { color: var(--clay-dark); font-size: 0.85rem; margin-top: 0.3rem; }

/* --- Zwei-Spalten-Zeile (Von/Bis) ----------------------------------------- */
.time-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }

/* --- Storno-Optionen ------------------------------------------------------ */
.cancel-opt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--net);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  flex-wrap: wrap;
}
.cancel-opt form { margin: 0; }
.cancel-opt > div:first-child { flex: 1 1 280px; }

/* --- Messages / Badges ---------------------------------------------------- */
.messages { margin-bottom: 1.2rem; display: grid; gap: 0.6rem; }
.alert {
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid;
  font-weight: 600;
  font-size: 0.92rem;
}
.alert--success { background: #eaf6ef; border-color: #b9e2c9; color: var(--grass-dark); }
.alert--error   { background: #fbeae3; border-color: #f3c9b5; color: var(--clay-dark); }
.alert--info    { background: #eef2f7; border-color: #d4dde8; color: #34516e; }
.alert--warning { background: #fdf4e3; border-color: #f0dca8; color: #8a5a12; }

.badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.2rem 0.6rem; border-radius: 999px;
  font-size: 0.78rem; font-weight: 700;
}
.badge--free { background: #e7f5ec; color: var(--grass-dark); }
.badge--busy { background: #fbe7df; color: var(--clay-dark); }
.badge--blocked { background: #eceef0; color: var(--blocked); }

/* --- Statistik ------------------------------------------------------------ */
.stat-ranges { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 1.2rem; }
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--net);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow-sm);
}
.stat-card-num { font-size: 1.7rem; font-weight: 800; letter-spacing: -0.02em; color: var(--grass-dark); }
.stat-card-lbl { color: var(--ink-soft); font-size: 0.85rem; font-weight: 600; margin-top: 0.2rem; }

.stat-row { display: flex; align-items: center; gap: 0.8rem; padding: 0.5rem 0; }
.stat-row + .stat-row { border-top: 1px solid var(--net); }
.stat-row-name { flex: 0 0 110px; font-weight: 700; }
.stat-bar { flex: 1 1 auto; height: 14px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.stat-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--grass), var(--grass-dark));
  border-radius: 999px;
  transition: width .3s ease;
}
.stat-row-val { flex: 0 0 auto; font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.stat-row-val .muted { font-weight: 500; }

/* --- Tagesraster ---------------------------------------------------------- */
.grid-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.grid-date { text-align: center; font-size: 1.05rem; }
.grid-date .navlink { display: inline-block; margin-left: .5rem; font-size: .85rem; }
.grid-legend { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: .9rem; }

.grid-scroll { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--net); box-shadow: var(--shadow-sm); }
.grid-table {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
  min-width: 560px;
  background: var(--surface);
  font-size: .9rem;
}
.grid-table thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--surface-2);
  padding: .6rem .5rem;
  font-weight: 800;
  border-bottom: 2px solid var(--net);
  text-align: center;
}
.grid-table thead th.is-machine {
  background: linear-gradient(180deg, #fbece4, #f7ddd0);
  color: var(--clay-dark);
}
.grid-time-head { width: 64px; }
.grid-time {
  width: 64px;
  text-align: right;
  padding: 0 .6rem;
  color: var(--ink-soft);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: var(--surface-2);
  border-bottom: 1px solid var(--net);
  white-space: nowrap;
}
.slot {
  height: 30px;
  border-bottom: 1px solid var(--net);
  border-left: 1px solid var(--net);
  text-align: center;
  vertical-align: middle;
  padding: 0 2px;
}
.slot--free { background: #f3faf5; }
.slot--free .slot-link {
  display: block;
  width: 100%; height: 100%;
  line-height: 28px;
  color: transparent;
  font-weight: 800;
  text-decoration: none;
  transition: background .12s ease, color .12s ease;
}
.slot--free .slot-link:hover { background: rgba(47,143,91,.16); color: var(--grass-dark); }
.slot--past { background: repeating-linear-gradient(45deg, #f4f4f2, #f4f4f2 6px, #eeeeec 6px, #eeeeec 12px); }
.slot--member { background: #fbe7df; }
.slot--machine { background: #fdeede; }
.slot--blocked { background: repeating-linear-gradient(45deg, #e3e5e8, #e3e5e8 6px, #d7dade 6px, #d7dade 12px); color: var(--blocked); }
.slot--own { background: #d9efe1 !important; box-shadow: inset 3px 0 0 var(--grass); }
.slot-block-link {
  display: block;
  width: 100%; height: 100%;
  min-height: 28px;
  text-decoration: none;
  color: inherit;
}
.slot-block-link:hover { background: rgba(0,0,0,.06); text-decoration: none; }
.slot-label {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  line-height: 1.05;
  padding: 2px 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- Bestätigungs-Modal ---------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.2rem;
  background: rgba(20, 28, 24, 0.5);
  backdrop-filter: blur(2px);
}
.modal-overlay.open { display: flex; animation: modal-fade .15s ease; }
@keyframes modal-fade { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 420px;
  padding: 1.6rem;
  animation: modal-pop .16s ease;
}
@keyframes modal-pop { from { transform: translateY(8px) scale(.98); } to { transform: none; } }
.modal-title { margin: 0 0 0.5rem; font-size: 1.25rem; letter-spacing: -0.02em; }
.modal-msg { margin: 0; color: var(--ink-soft); }
.modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 1.4rem; flex-wrap: wrap; }

/* --- htmx-Indikator ------------------------------------------------------- */
.htmx-indicator { opacity: 0; transition: opacity .2s ease; }
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { opacity: 1; }

.muted { color: var(--ink-soft); }
.center { text-align: center; }
.stack > * + * { margin-top: 1rem; }

/* =========================================================================
   Responsive: Hamburger-Navigation + Feinschliff für Handy/Tablet
   ========================================================================= */
.nav-toggle { display: none; }
.nav-burger { display: none; }

@media (max-width: 760px) {
  .site-header .bar { flex-wrap: wrap; row-gap: 0.4rem; }

  /* Hamburger-Button rechts */
  .nav-burger {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    margin-left: auto;
    width: 46px; height: 42px;
    padding: 0 11px;
    border: 1.5px solid var(--net);
    border-radius: var(--radius-sm);
    background: var(--surface);
    cursor: pointer;
  }
  .nav-burger span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: all .2s ease; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  /* Eingeklapptes Menü, volle Breite unter der Leiste */
  .nav {
    flex-basis: 100%;
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    display: none;
    padding: 0.3rem 0 0.4rem;
    border-top: 1px solid var(--net);
    margin-top: 0.3rem;
  }
  .nav-toggle:checked ~ .nav { display: flex; }

  .nav a,
  .nav .navlink,
  .nav .user {
    width: 100%;
    padding: 0.7rem 0.7rem;
    border-radius: var(--radius-sm);
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .nav .user { color: var(--ink-soft); font-size: 0.8rem; text-transform: uppercase; letter-spacing: .05em; }
  .nav form { width: 100%; margin: 0.2rem 0 0; }
  .nav form .btn { width: 100%; justify-content: center; }

  /* Verwaltungs-Gruppe als Abschnitt statt vertikalem Trenner */
  .nav-divider { display: none; }
  .nav-group-label {
    width: 100%;
    padding: 0.7rem 0.7rem 0.2rem;
    border-top: 1px solid var(--net);
    margin-top: 0.2rem;
  }
  .brand-name { display: inline; }
}

@media (max-width: 600px) {
  main { padding: 1.4rem 1rem 3rem; }
  .hero { padding: 2rem 1.3rem; }
  .hero-logo img { height: 60px; }
  .hero h1 { font-size: clamp(1.6rem, 7vw, 2.2rem); }
  .grid-nav { gap: 0.5rem; }
}

@media (max-width: 430px) {
  /* Von/Bis auf sehr schmalen Screens untereinander */
  .time-row { grid-template-columns: 1fr; }
  .brand-name { display: none; }
  .hero { padding: 1.6rem 1.1rem; }
}