:root {
  --bg: #0f0f14;
  --card: #171722;
  --text: #f1f1f6;
  --muted: #b7b7c7;
  --accent: #8f87ff;
  --accent-2: #46e2b5;
  --border: #26263a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: radial-gradient(1000px 600px at 20% -10%, #1b2030, #0f0f14);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial;
}

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

header {
  padding: 32px 20px 10px;
  text-align: center;
}
h1 { margin: 0; font-size: 32px; letter-spacing: 0.5px; }
.sub { color: var(--muted); margin-top: 8px; }

main {
  max-width: 880px;
  padding: 20px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.00));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
}

h2 {
  margin: 0 0 12px;
  font-size: 20px;
}

.theme-block {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  margin-top: 10px;
}

.theme-block .date {
  color: var(--accent-2);
  font-weight: 600;
  letter-spacing: 0.2px;
}

.theme-block .theme {
  margin-top: 6px;
  font-size: 18px;
}

#zoneRow {
  color: var(--muted);
  margin-bottom: 4px;
}

input[type="date"] {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  outline: none;
}

.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }

button {
  background: var(--accent);
  color: #0a0a0a;
  border: none;
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
}
button.secondary {
  background: #2b2b3f;
  color: var(--text);
}
.status { color: var(--muted); margin-top: 8px; }
footer { text-align: center; padding: 30px 16px 50px; color: var(--muted); }