/* ============================================================
   GOR UNISMUH — "Court-Side HUD"
   Futuristic line-tracking control room. Cyan→violet→magenta
   plasma on a deep court-void. Signature: perspective court
   floor + radar brand. All JS selectors preserved.
   ============================================================ */
:root {
  --void: #05070f;
  --bg-2: #080d1c;
  --panel: rgba(15, 23, 43, 0.62);
  --panel-2: rgba(24, 35, 62, 0.72);
  --panel-solid: #0c1428;
  --line: rgba(96, 138, 214, 0.16);
  --line-2: rgba(120, 165, 245, 0.28);
  --text: #eaf1ff;
  --muted: #8193bc;
  --cyan: #29e7ff;
  --cyan-d: #12aecb;
  --violet: #8b6cff;
  --magenta: #ff4d8d;
  --amber: #ffc24b;
  --danger: #ff4d6a;
  --grad: linear-gradient(135deg, #29e7ff 0%, #8b6cff 100%);
  --grad-soft: linear-gradient(135deg, rgba(41,231,255,0.16), rgba(139,108,255,0.16));
  --radius: 16px;
  --glow-cyan: 0 0 0 1px rgba(41,231,255,0.25), 0 8px 30px -8px rgba(41,231,255,0.35);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  background: var(--void);
  color: var(--text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}
/* --- SIGNATURE: receding court-perspective floor + horizon glow --- */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1100px 520px at 50% -8%, rgba(41,231,255,0.12), transparent 60%),
    radial-gradient(900px 600px at 88% 8%, rgba(139,108,255,0.10), transparent 55%),
    var(--void);
}
body::after {
  content: '';
  position: fixed; left: 0; right: 0; bottom: 0; height: 62vh; z-index: -1;
  background-image:
    linear-gradient(to right, rgba(41,231,255,0.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(41,231,255,0.10) 1px, transparent 1px);
  background-size: 46px 46px;
  transform: perspective(620px) rotateX(64deg);
  transform-origin: bottom center;
  mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,0.35) 45%, transparent 78%);
  -webkit-mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,0.35) 45%, transparent 78%);
  opacity: 0.7;
  pointer-events: none;
}
h1, h2, h3, .brand-name { font-family: 'Chakra Petch', sans-serif; letter-spacing: 0.01em; }
button { font-family: inherit; cursor: pointer; }
::selection { background: rgba(41,231,255,0.3); }

.app { display: grid; grid-template-columns: 256px 1fr; min-height: 100vh; }

/* ---------------- Sidebar ---------------- */
.sidebar {
  background: linear-gradient(180deg, rgba(10,16,32,0.9), rgba(6,9,18,0.75));
  border-right: 1px solid var(--line);
  backdrop-filter: blur(10px);
  padding: 22px 16px; display: flex; flex-direction: column; gap: 22px;
  position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; gap: 13px; align-items: center; }
.brand-mark {
  font-size: 24px; width: 48px; height: 48px; display: grid; place-items: center;
  border-radius: 14px; position: relative; isolation: isolate;
  background: radial-gradient(circle at 50% 40%, rgba(41,231,255,0.22), rgba(139,108,255,0.12));
  border: 1px solid var(--line-2);
  box-shadow: var(--glow-cyan);
}
/* radar sweep */
.brand-mark::before {
  content: ''; position: absolute; inset: -1px; border-radius: 14px; z-index: -1;
  background: conic-gradient(from 0deg, transparent 0deg, rgba(41,231,255,0.55) 40deg, transparent 90deg);
  animation: radar 3.6s linear infinite;
}
.brand-mark::after {
  content: ''; position: absolute; inset: 3px; border-radius: 11px; z-index: -1;
  background: var(--panel-solid);
}
@keyframes radar { to { transform: rotate(360deg); } }
.brand-name { font-weight: 700; font-size: 17px; letter-spacing: 0.04em; text-transform: uppercase; }
.brand-sub { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--cyan); letter-spacing: 0.22em; text-transform: uppercase; margin-top: 2px; }
.nav { display: flex; flex-direction: column; gap: 4px; }
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 11px 14px;
  background: transparent; border: 1px solid transparent; color: var(--muted); border-radius: 12px;
  font-size: 14px; font-weight: 500; text-align: left; transition: 0.16s; position: relative;
}
.nav-item span { font-size: 16px; filter: grayscale(0.3); transition: 0.16s; }
.nav-item:hover { background: var(--panel); color: var(--text); }
.nav-item:hover span { filter: none; }
.nav-item.active {
  background: var(--grad-soft); color: var(--text);
  border-color: rgba(41,231,255,0.28);
}
.nav-item.active::before {
  content: ''; position: absolute; left: -16px; top: 8px; bottom: 8px; width: 3px;
  background: var(--grad); border-radius: 0 3px 3px 0; box-shadow: 0 0 12px var(--cyan);
}
.nav-item.active span { filter: none; }
.side-foot { margin-top: auto; font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase; }

/* ---------------- Main ---------------- */
.main { min-width: 0; }
.topbar {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 30px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
  background: linear-gradient(180deg, rgba(5,7,15,0.92), rgba(5,7,15,0.72));
  backdrop-filter: blur(12px);
}
.topbar h1 { margin: 0; font-size: 20px; text-transform: uppercase; letter-spacing: 0.06em; }
.topbar h1::before { content: '▸ '; color: var(--cyan); }
.top-actions { display: flex; gap: 10px; align-items: center; }
.content { padding: 26px 30px; }

/* ---------------- Inputs & buttons ---------------- */
.inp, select, textarea {
  background: rgba(8,13,28,0.8); border: 1px solid var(--line); color: var(--text);
  padding: 9px 12px; border-radius: 10px; font-size: 14px; font-family: inherit; outline: none; transition: 0.15s;
}
.inp:focus, select:focus, textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(41,231,255,0.14); }
input[type="date"], input[type="time"] { color-scheme: dark; }
.btn {
  border: 1px solid var(--line-2); background: var(--panel); color: var(--text);
  padding: 9px 15px; border-radius: 10px; font-weight: 600; font-size: 13px; transition: 0.16s; letter-spacing: 0.01em;
}
.btn:hover { background: var(--panel-2); border-color: var(--cyan); }
.btn.primary {
  background: var(--grad); border: 0; color: #04121b; font-weight: 700;
  box-shadow: 0 6px 22px -8px rgba(41,231,255,0.7);
}
.btn.primary:hover { filter: brightness(1.08); box-shadow: 0 8px 28px -6px rgba(41,231,255,0.85); }
.btn.ghost { background: transparent; border-color: var(--line); }
.btn.danger { border-color: rgba(255,77,106,0.4); color: var(--danger); background: rgba(255,77,106,0.06); }
.btn.danger:hover { border-color: var(--danger); background: rgba(255,77,106,0.12); }
.btn.sm { padding: 6px 11px; font-size: 12px; }
.icon-btn { background: transparent; border: 0; color: var(--muted); font-size: 16px; padding: 4px 9px; border-radius: 8px; transition: 0.15s; }
.icon-btn:hover { background: var(--panel-2); color: var(--cyan); }

/* ---------------- Stat HUD readouts ---------------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 18px 16px; position: relative; overflow: hidden; backdrop-filter: blur(8px);
}
.stat::before { content: ''; position: absolute; left: 0; top: 0; right: 0; height: 2px; background: var(--grad); opacity: 0.9; }
.stat::after { content: ''; position: absolute; top: 12px; right: 12px; width: 8px; height: 8px; border-top: 1px solid var(--line-2); border-right: 1px solid var(--line-2); }
.stat.blue { border-color: rgba(41,231,255,0.22); }
.stat.amber::before { background: linear-gradient(135deg, var(--amber), #ff7a3d); }
.stat.red::before { background: linear-gradient(135deg, var(--magenta), var(--danger)); }
.stat-label { color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: 0.16em; font-family: 'JetBrains Mono', monospace; }
.stat-value { font-family: 'JetBrains Mono', monospace; font-size: 25px; font-weight: 700; margin-top: 8px; letter-spacing: -0.01em; }
.stat-sub { color: var(--muted); font-size: 12px; margin-top: 5px; }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; margin-bottom: 20px; backdrop-filter: blur(8px); position: relative;
}
.panel-h { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.panel-h h2 { margin: 0; font-size: 15px; text-transform: uppercase; letter-spacing: 0.08em; }
.panel-h h2::before { content: '// '; color: var(--cyan); font-family: 'JetBrains Mono', monospace; }

/* ---------------- Chart: plasma energy bars ---------------- */
.chart { display: flex; align-items: flex-end; gap: 10px; height: 170px; padding-top: 10px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; height: 100%; justify-content: flex-end; }
.bar {
  width: 100%; max-width: 40px; min-height: 3px; border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  box-shadow: 0 0 14px -2px rgba(41,231,255,0.5); transition: 0.35s; position: relative;
}
.bar:hover { filter: brightness(1.15); }
.bar:hover::after {
  content: attr(data-val); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  background: var(--panel-solid); border: 1px solid var(--line-2); padding: 4px 8px; border-radius: 6px;
  font-size: 11px; font-family: 'JetBrains Mono', monospace; white-space: nowrap; margin-bottom: 6px; box-shadow: var(--glow-cyan);
}
.bar-lbl { font-size: 10px; color: var(--muted); font-family: 'JetBrains Mono', monospace; letter-spacing: 0.04em; }

/* ---------------- Table ---------------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 13px; border-bottom: 1px solid var(--line); font-size: 13px; }
th { color: var(--muted); font-weight: 600; font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; font-family: 'JetBrains Mono', monospace; }
tbody tr { transition: 0.12s; }
tbody tr:hover { background: rgba(41,231,255,0.05); }
td.actions { white-space: nowrap; display: flex; gap: 6px; }

.badge { padding: 3px 10px; border-radius: 6px; font-size: 11px; font-weight: 600; display: inline-block; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.04em; border: 1px solid transparent; }
.badge.green { background: rgba(41,231,255,0.12); color: var(--cyan); border-color: rgba(41,231,255,0.3); }
.badge.blue { background: rgba(139,108,255,0.14); color: var(--violet); border-color: rgba(139,108,255,0.32); }
.badge.amber { background: rgba(255,194,75,0.12); color: var(--amber); border-color: rgba(255,194,75,0.3); }
.badge.red { background: rgba(255,77,141,0.12); color: var(--magenta); border-color: rgba(255,77,141,0.32); }
.badge.gray { background: rgba(129,147,188,0.12); color: var(--muted); border-color: rgba(129,147,188,0.28); }

.empty { text-align: center; color: var(--muted); padding: 44px 20px; }
.empty .big { font-size: 42px; margin-bottom: 10px; filter: drop-shadow(0 0 14px rgba(41,231,255,0.4)); }

/* ---------------- Booking form: multi-court picks & member slot builder ---------------- */
.muted { color: var(--muted); }
.hint { font-size: 12px; line-height: 1.5; margin-bottom: 10px; }
.court-picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.pick { display: flex; align-items: center; gap: 8px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 12px; font-size: 13px; cursor: pointer; transition: 0.15s; }
.pick:hover { border-color: rgba(41,231,255,0.4); }
.pick input { accent-color: var(--cyan); }
.pick:has(input:checked) { border-color: var(--cyan); background: rgba(41,231,255,0.08); }
.pick:has(input:disabled) { opacity: 0.4; cursor: not-allowed; }
.slot-builder { border: 1px solid var(--line); border-radius: 14px; padding: 12px; margin-bottom: 12px; background: rgba(139,108,255,0.05); }
.slot-list { display: flex; flex-direction: column; gap: 7px; }
.slot-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 11px; font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.slot-row .btn.sm { padding: 2px 9px; }

/* mini calendar for member schedule */
.cal { border: 1px solid var(--line); border-radius: 12px; padding: 10px; margin-top: 10px; }
.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; font-family: 'JetBrains Mono', monospace; font-size: 13px; letter-spacing: 0.04em; text-transform: capitalize; }
.cal-nav { background: transparent; border: 1px solid var(--line); color: var(--text); width: 30px; height: 30px; border-radius: 8px; cursor: pointer; font-size: 16px; line-height: 1; transition: 0.15s; }
.cal-nav:hover { border-color: var(--cyan); color: var(--cyan); }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-dow { text-align: center; font-size: 10px; color: var(--muted); font-family: 'JetBrains Mono', monospace; padding-bottom: 2px; }
.cal-cell { aspect-ratio: 1; border: 1px solid transparent; background: rgba(255,255,255,0.02); color: var(--text); border-radius: 8px; cursor: pointer; font-size: 13px; transition: 0.12s; padding: 0; }
.cal-cell.empty { background: transparent; border: 0; cursor: default; }
.cal-cell:not(.disabled):not(.empty):hover { border-color: var(--cyan); }
.cal-cell.active { background: linear-gradient(135deg, var(--cyan), var(--violet)); color: #04121f; font-weight: 700; border-color: transparent; }
.cal-cell.disabled { opacity: 0.28; cursor: not-allowed; }

/* Kalender ikhtisar jadwal (jumlah booking per hari) */
.cal-panel { margin-bottom: 18px; }
.cal-overview { margin-top: 0; }
.cal-overview .cal-grid { gap: 3px; }
.cal-overview .cal-cell { aspect-ratio: auto; min-height: 54px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; border-radius: 8px; }
.cal-overview .cal-cell .cal-d { font-size: 12px; line-height: 1; }
.cal-overview .cal-cell .cal-ct { font-family: 'JetBrains Mono', monospace; font-size: 8px; line-height: 13px; min-width: 14px; padding: 0 3px; border-radius: 5px; background: rgba(41,231,255,0.16); color: var(--cyan); }
.cal-overview .cal-cell .cal-ct.none { background: transparent; color: var(--muted); }
.cal-overview .cal-cell.has { border-color: var(--line-2); background: rgba(41,231,255,0.05); }
.cal-overview .cal-cell.today { box-shadow: inset 0 0 0 1px var(--violet); }
.cal-overview .cal-cell.active .cal-ct { background: rgba(4,18,31,0.22); color: #04121f; }
.cal-legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; font-size: 10px; color: var(--muted); font-family: 'JetBrains Mono', monospace; }
.cal-legend b { color: var(--cyan); }

/* ---------------- Court cards ---------------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(244px, 1fr)); gap: 16px; }
.court-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
  display: flex; flex-direction: column; gap: 8px; backdrop-filter: blur(8px); position: relative; overflow: hidden; transition: 0.16s;
}
.court-card::after {
  content: ''; position: absolute; right: -30px; bottom: -30px; width: 90px; height: 90px; border-radius: 50%;
  background: var(--grad-soft); filter: blur(8px); opacity: 0.5;
}
.court-card:hover { border-color: var(--line-2); transform: translateY(-2px); }
.court-card h3 { margin: 0; font-size: 17px; letter-spacing: 0.02em; }
.court-price { font-family: 'JetBrains Mono', monospace; font-size: 20px; font-weight: 700; color: var(--cyan); }
.court-meta { color: var(--muted); font-size: 12px; }
.court-actions { display: flex; gap: 8px; margin-top: 6px; position: relative; z-index: 1; }

/* ---------------- Member schedule (dashboard) ---------------- */
.member-day { margin-top: 12px; }
.member-day:first-of-type { margin-top: 4px; }
.member-day-h { font-family: 'JetBrains Mono', monospace; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--violet); border-bottom: 1px solid var(--line); padding-bottom: 6px; margin-bottom: 8px; }
.member-row { display: grid; grid-template-columns: 96px 1fr 1.2fr auto; align-items: center; gap: 12px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 6px; background: rgba(139,108,255,0.04); }
.member-row:hover { border-color: var(--line-2); }
.member-row .mr-time { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--cyan); }
.member-row .mr-court { color: var(--muted); font-size: 13px; }
.member-row .mr-name { font-weight: 600; font-size: 14px; }
@media (max-width: 640px) { .member-row { grid-template-columns: 84px 1fr; row-gap: 4px; } .member-row .mr-name { grid-column: 1 / -1; } }

/* ---------------- Schedule grid ---------------- */
.sched-controls { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.sched { display: grid; gap: 3px; overflow-x: auto; }
.sched-cell { padding: 8px 6px; font-size: 12px; border: 1px solid var(--line); min-height: 42px; }
.sched-head { background: var(--panel-2); font-weight: 600; text-align: center; position: sticky; top: 0; font-family: 'Chakra Petch', sans-serif; text-transform: uppercase; letter-spacing: 0.04em; font-size: 11px; }
.sched-time { background: rgba(8,13,28,0.6); color: var(--muted); text-align: right; font-size: 11px; font-family: 'JetBrains Mono', monospace; }
.slot { border-radius: 7px; cursor: pointer; transition: 0.13s; }
.slot.free:hover { background: rgba(41,231,255,0.07); border-color: var(--line-2); box-shadow: inset 0 0 0 1px rgba(41,231,255,0.2); }
.slot.busy {
  background: linear-gradient(135deg, rgba(41,231,255,0.2), rgba(139,108,255,0.14));
  border-color: rgba(41,231,255,0.45); color: var(--text); font-weight: 600;
  box-shadow: inset 0 0 18px -6px rgba(41,231,255,0.5);
}
.slot.busy.unpaid {
  background: linear-gradient(135deg, rgba(255,77,141,0.2), rgba(255,194,75,0.12));
  border-color: rgba(255,77,141,0.45); box-shadow: inset 0 0 18px -6px rgba(255,77,141,0.5);
}
.slot small { font-family: 'JetBrains Mono', monospace; color: var(--muted); }

/* ---------------- Modal ---------------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(3,5,11,0.78); display: grid; place-items: center; z-index: 50; padding: 20px; backdrop-filter: blur(4px); }
.modal {
  background: linear-gradient(180deg, rgba(14,22,42,0.98), rgba(9,14,28,0.98));
  border: 1px solid var(--line-2); border-radius: 18px; width: 100%; max-width: 480px; max-height: 90vh; overflow: auto;
  box-shadow: 0 24px 70px -20px rgba(0,0,0,0.8), var(--glow-cyan);
  animation: modalIn 0.22s cubic-bezier(0.16,1,0.3,1);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(0.98); } to { opacity: 1; transform: none; } }
.modal-h { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(10,16,32,0.96); backdrop-filter: blur(8px); }
.modal-h h3 { margin: 0; font-size: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.modal-h h3::before { content: '◆ '; color: var(--cyan); }
.modal-b { padding: 20px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 11px; color: var(--muted); margin-bottom: 6px; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.06em; text-transform: uppercase; }
.field .inp, .field select, .field textarea { width: 100%; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }
.check { display: flex; align-items: center; gap: 8px; text-transform: none; letter-spacing: 0; font-family: 'Space Grotesk', sans-serif; }
.check input { width: 16px; height: 16px; accent-color: var(--cyan); }

/* ---------------- Toast ---------------- */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: var(--panel-solid); border: 1px solid var(--line-2); padding: 12px 22px; border-radius: 12px;
  box-shadow: var(--glow-cyan); z-index: 100; font-weight: 600; max-width: 90vw; letter-spacing: 0.02em;
}
.toast::before { content: '● '; color: var(--cyan); }
.toast.err { border-color: rgba(255,77,106,0.5); color: var(--danger); }
.toast.err::before { content: '▲ '; color: var(--danger); }
.toast.ok { border-color: rgba(41,231,255,0.5); }

@media (max-width: 820px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 40; width: 256px; transform: translateX(-100%); transition: 0.2s; }
  .sidebar.open { transform: none; }
  .content { padding: 16px; }
  .topbar { padding: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .brand-mark::before { animation: none; }
  .modal { animation: none; }
  * { transition: none !important; }
}