/* Cron Expression Builder — styles.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #0A0D14;
  --bg-card: rgba(15, 20, 32, 0.9);
  --surface: rgba(30, 40, 60, 0.6);
  --border: rgba(90, 110, 150, 0.12);
  --text: #E4E8F0;
  --text-dim: #7C859A;
  --text-muted: #4E5568;
  --primary: #6366F1;
  --primary-dim: rgba(99, 102, 241, 0.12);
  --accent: #10B981;
  --accent-dim: rgba(16, 185, 129, 0.12);
  --radius: 10px;
  --radius-sm: 6px;
  --glass: rgba(12, 16, 26, 0.85);
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }

.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--glass); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 10px; }
.logo { width: 34px; height: 34px; background: linear-gradient(135deg, var(--primary), #818CF8); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 16px; }
.header h1 { font-size: 15px; font-weight: 600; background: linear-gradient(135deg, var(--primary), #A5B4FC); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.header-right { display: flex; align-items: center; gap: 12px; }

.toggle-label { font-size: 12px; color: var(--text-dim); display: flex; align-items: center; gap: 6px; cursor: pointer; }
.toggle-label input { accent-color: var(--primary); }

.select {
  padding: 6px 10px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-size: 11px; outline: none;
  font-family: 'Inter', sans-serif; cursor: pointer;
}

.btn {
  padding: 7px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 500; cursor: pointer; transition: var(--transition);
  display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { border-color: var(--primary); }
.btn-primary { background: linear-gradient(135deg, var(--primary), #4F46E5); border-color: transparent; color: #fff; }
.btn-primary:hover { filter: brightness(1.15); }
.btn-sm { padding: 5px 10px; font-size: 11px; }

.app-container { max-width: 1200px; margin: 0 auto; padding: 16px; }

.expression-bar {
  display: flex; gap: 8px; margin-bottom: 16px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 14px; align-items: center;
}
.expr-input {
  flex: 1; background: transparent; border: none; color: var(--accent);
  font-family: 'JetBrains Mono', monospace; font-size: 20px; font-weight: 600;
  outline: none; letter-spacing: 2px;
}

.content-grid { display: grid; grid-template-columns: 1fr 380px; gap: 16px; }

.section-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px; margin-bottom: 12px;
}
.section-card h3 { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-dim); margin-bottom: 10px; }
.field-hint { font-weight: 400; color: var(--text-muted); text-transform: none; letter-spacing: 0; }

.preset-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.preset-btn {
  padding: 6px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); color: var(--text-dim); font-size: 11px; font-weight: 500;
  cursor: pointer; transition: var(--transition); font-family: 'Inter', sans-serif;
}
.preset-btn:hover { border-color: var(--primary); color: var(--text); }

.field-type-tabs { display: flex; gap: 2px; margin-bottom: 10px; }
.field-tab {
  padding: 5px 10px; border-radius: var(--radius-sm); border: 1px solid transparent;
  background: transparent; color: var(--text-muted); font-size: 11px; font-weight: 500;
  cursor: pointer; transition: var(--transition); font-family: 'Inter', sans-serif;
}
.field-tab:hover { color: var(--text); }
.field-tab.active { background: var(--primary-dim); border-color: var(--primary); color: var(--primary); }

.field-body { min-height: 40px; }

.value-grid { display: flex; flex-wrap: wrap; gap: 4px; }
.value-btn {
  width: 36px; height: 30px; border-radius: 4px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text-dim); font-size: 11px;
  cursor: pointer; transition: var(--transition); display: flex;
  align-items: center; justify-content: center; font-family: 'JetBrains Mono', monospace;
}
.value-btn:hover { border-color: var(--primary); color: var(--text); }
.value-btn.selected { background: var(--primary-dim); border-color: var(--primary); color: var(--primary); font-weight: 600; }

.range-inputs, .step-inputs { display: flex; gap: 8px; align-items: center; }
.range-inputs input, .step-inputs input {
  width: 60px; padding: 6px 8px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  font-family: 'JetBrains Mono', monospace; font-size: 12px; outline: none; text-align: center;
}
.range-inputs input:focus, .step-inputs input:focus { border-color: var(--primary); }
.range-inputs span, .step-inputs span { color: var(--text-muted); font-size: 12px; }

.description-text { font-size: 15px; color: var(--accent); font-weight: 500; line-height: 1.5; }

.runs-list { font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.run-item { padding: 6px 0; border-bottom: 1px solid var(--border); color: var(--text-dim); display: flex; gap: 8px; }
.run-item:last-child { border-bottom: none; }
.run-index { color: var(--text-muted); min-width: 20px; }
.run-time { color: var(--text); }

.calendar { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.cal-header { text-align: center; font-size: 10px; font-weight: 600; color: var(--text-muted); padding: 4px; text-transform: uppercase; }
.cal-day {
  text-align: center; font-size: 11px; padding: 6px 2px; border-radius: 4px;
  color: var(--text-muted); font-family: 'JetBrains Mono', monospace;
}
.cal-day.active { background: var(--primary-dim); color: var(--primary); font-weight: 600; }
.cal-day.today { border: 1px solid var(--accent); color: var(--accent); }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 20px; font-size: 13px; color: var(--text);
  opacity: 0; transition: all 0.3s ease; z-index: 200; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface); border-radius: 3px; }

@media (max-width: 800px) {
  .content-grid { grid-template-columns: 1fr; }
  .header { flex-wrap: wrap; gap: 8px; }
}