:root {
  --bg: #0f1a17;
  --bg-elevated: #16241f;
  --bg-panel: #1c2e28;
  --ink: #e8f0ec;
  --muted: #9bb0a6;
  --accent: #3ecf8e;
  --accent-dim: #2a9b6a;
  --warn: #e0a35b;
  --danger: #d86464;
  --line: rgba(232, 240, 236, 0.12);
  --radius: 10px;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(62, 207, 142, 0.16), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(224, 163, 91, 0.10), transparent 55%),
    linear-gradient(180deg, #0c1512 0%, var(--bg) 40%, #101c18 100%);
}

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

.shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: 1.5rem 1.25rem;
  border-right: 1px solid var(--line);
  background: rgba(14, 24, 20, 0.85);
  backdrop-filter: blur(8px);
}

.brand {
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  margin: 0 0 0.25rem;
}

.brand span { color: var(--accent); }

.brand-sub {
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 2rem;
}

.nav a {
  display: block;
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.25rem;
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
}

.nav a:hover, .nav a.active {
  background: rgba(62, 207, 142, 0.12);
  color: var(--accent);
  text-decoration: none;
}

.content {
  padding: 1.75rem 2rem 3rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

h1 {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 600;
}

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

.flash {
  background: rgba(62, 207, 142, 0.15);
  border: 1px solid rgba(62, 207, 142, 0.35);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

.panel {
  background: rgba(28, 46, 40, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}

.stat {
  font-size: 1.8rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th, .table td {
  text-align: left;
  padding: 0.7rem 0.4rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-size: 0.92rem;
}

.table th { color: var(--muted); font-weight: 500; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid var(--line);
  color: var(--muted);
}

.badge.ok { color: var(--accent); border-color: rgba(62, 207, 142, 0.4); }
.badge.warn { color: var(--warn); border-color: rgba(224, 163, 91, 0.4); }

.btn, button, input[type=submit] {
  appearance: none;
  border: 1px solid rgba(62, 207, 142, 0.45);
  background: rgba(62, 207, 142, 0.12);
  color: var(--ink);
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
  font: inherit;
  cursor: pointer;
}

.btn:hover, button:hover, input[type=submit]:hover {
  background: rgba(62, 207, 142, 0.22);
}

.btn.ghost {
  border-color: var(--line);
  background: transparent;
}

.btn.danger {
  border-color: rgba(216, 100, 100, 0.5);
  background: rgba(216, 100, 100, 0.12);
}

.actions { display: flex; flex-wrap: wrap; gap: 0.4rem; }

form.inline { display: inline; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

input[type=text], input[type=url], input[type=number], input[type=password], input[type=datetime-local], select, textarea {
  width: 100%;
  background: rgba(10, 18, 15, 0.7);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font: inherit;
  margin-bottom: 0.8rem;
}

textarea { min-height: 120px; font-family: var(--mono); font-size: 0.85rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.login-panel {
  width: min(420px, 100%);
  background: rgba(28, 46, 40, 0.85);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 2rem;
}

.score {
  font-family: var(--mono);
  color: var(--accent);
}

.agenda {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.agenda-day-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
}

.agenda-day-header h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.agenda-day.is-today .agenda-day-header h2 {
  color: var(--accent);
}

.agenda-slot {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0.85rem;
  margin-bottom: 0.65rem;
}

.agenda-time {
  padding-top: 0.85rem;
  text-align: right;
}

.agenda-hour {
  display: block;
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 500;
}

.agenda-card {
  background: rgba(28, 46, 40, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.agenda-card.needs-replan {
  border-color: rgba(224, 163, 91, 0.45);
}

.agenda-card > summary {
  list-style: none;
  cursor: pointer;
  padding: 0.85rem 1rem;
}

.agenda-card > summary::-webkit-details-marker { display: none; }

.agenda-card > summary::after {
  content: "▸";
  float: right;
  color: var(--muted);
  transition: transform 0.15s ease;
}

.agenda-card[open] > summary::after {
  transform: rotate(90deg);
}

.agenda-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.75rem;
  padding-right: 1.25rem;
}

.agenda-title {
  font-weight: 550;
}

.agenda-link {
  font-size: 0.82rem;
  word-break: break-all;
}

.agenda-body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--line); }
  .grid.cols-3, .grid.cols-2, .form-row { grid-template-columns: 1fr; }
  .content { padding: 1.25rem; }
  .agenda-slot { grid-template-columns: 3.25rem 1fr; gap: 0.55rem; }
}