:root {
  --surface: #0F172A;
  --surface-dim: #0F172A;
  --surface-container-low: #1A2333;
  --surface-container: #1E2838;
  --surface-container-high: #243045;
  --surface-container-highest: #2D3748;
  --surface-container-lowest: #0B1220;
  --primary: #00E5FF;
  --secondary: #487F89;
  --tertiary: #FEC931;
  --on-surface: #E6EDF3;
  --on-surface-variant: #8A97A8;
  --on-primary: #06222A;
  --primary-container: rgba(0, 229, 255, 0.14);
  --secondary-container: rgba(72, 127, 137, 0.20);
  --outline-variant: #334155;
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-body);
  line-height: 1.5;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background: var(--surface-container-low);
}

.logout-btn {
  padding: 6px 14px;
  background: transparent;
  color: var(--on-surface-variant);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font-body);
}
.logout-btn:hover {
  background: var(--surface-container-high);
  color: var(--on-surface);
}

/* 登录门 */
.login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface-container-low);
  border-radius: 12px;
  padding: 32px 28px;
  display: grid;
  gap: 16px;
}
.login-title {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0;
  text-align: center;
}
.login-sub {
  margin: 0 0 8px;
  color: var(--on-surface-variant);
  font-size: 13px;
  text-align: center;
}
.login-error {
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(254, 201, 49, 0.12);
  color: var(--tertiary);
  font-size: 13px;
}

h1, h2 { font-family: var(--font-display); margin: 0; }
h1 { font-size: 22px; letter-spacing: 0.02em; }
h2 {
  font-size: 15px; color: var(--on-surface-variant);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px;
}

main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  padding: 24px 28px;
  max-width: 1280px;
  margin: 0 auto;
}

/* 在线设备固定在右侧栏、跨两行；主列留给调度 + 操作历史 */
aside.panel {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.panel {
  background: var(--surface-container-low);
  border-radius: 10px;
  padding: 22px;
}

.tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.tab {
  flex: 1; padding: 10px;
  background: var(--surface-container-high);
  color: var(--on-surface-variant);
  border: none; border-radius: 8px;
  cursor: pointer; font-size: 14px; font-family: var(--font-body);
}
.tab.active {
  background: var(--primary-container);
  color: var(--primary);
}

label { display: block; font-size: 12px; color: var(--on-surface-variant); margin-bottom: 14px; }
textarea, input[type="number"], input[type="text"], input[type="password"], input[type="datetime-local"], input[type="time"], select {
  width: 100%; margin-top: 6px; padding: 11px 12px;
  background: var(--surface-container-lowest);
  color: var(--on-surface);
  border: none; border-bottom: 1px solid transparent;
  border-radius: 6px 6px 0 0;
  font-size: 14px; font-family: var(--font-body);
}
textarea:focus, input:focus, select:focus {
  outline: none;
  border-bottom: 1px solid var(--primary);
}
textarea {
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

#submit, .primary-btn {
  width: 100%; padding: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--on-primary);
  border: none; border-radius: 8px;
  font-size: 14px; font-weight: 600; cursor: pointer;
  font-family: var(--font-body);
}
#submit:hover, .primary-btn:hover { filter: brightness(1.08); }

#result { margin-top: 12px; padding: 10px; border-radius: 8px; font-size: 13px;
  background: var(--surface-container-high); }

#online-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
#online-list button {
  padding: 6px 12px;
  background: var(--secondary-container);
  color: var(--primary);
  border: none; border-radius: 999px; cursor: pointer;
  font-size: 12px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
#online-list button:hover { background: var(--primary-container); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 12px; }
th { color: var(--on-surface-variant); font-weight: 500; }
tbody tr { background: var(--surface-container); }
tbody tr + tr { margin-top: 8px; }

.pill {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: var(--surface-container-high); color: var(--on-surface-variant);
  font-size: 12px;
}
.status-led {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--tertiary);
}

/* 自动调度区域 */
#curveCanvas {
  display: block; width: 100%; height: 300px;
  background: var(--surface-container-lowest);
  border-radius: 8px; cursor: crosshair; touch-action: none;
}

.schedule-config { display: grid; gap: 12px; margin-top: 16px; }
.schedule-config .row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ratio-inputs { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.ratio-inputs input { flex: 1; margin-top: 0; }
.meta {
  display: flex; gap: 8px; flex-wrap: wrap;
  color: var(--on-surface-variant); font-size: 12px; margin-bottom: 12px;
}
.preset-row { display: flex; gap: 8px; flex-wrap: wrap; }
.preset-row .tab { flex: 0 0 auto; padding: 8px 14px; }

.btn-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stop-btn {
  width: 100%; padding: 12px;
  background: transparent;
  color: var(--tertiary);
  border: 1px solid var(--tertiary);
  border-radius: 8px;
  font-size: 14px; font-weight: 600; cursor: pointer;
  font-family: var(--font-body);
}
.stop-btn:hover { background: rgba(254, 201, 49, 0.12); }

#schedule-progress {
  margin-top: 12px; padding: 10px 12px; border-radius: 8px;
  background: var(--surface-container-high); font-size: 13px;
}

/* 操作历史：时间段过滤 + 统计 + 滚动加载 */
.history-filter {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
  margin-bottom: 12px;
}
.history-filter label {
  margin-bottom: 0;
}
.history-filter .primary-btn {
  width: auto;
  padding: 11px 20px;
}
.history-stats {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--surface-container-high);
  font-size: 13px;
  color: var(--on-surface-variant);
}
.history-scroll {
  max-height: 480px;
  overflow-y: auto;
}
.history-scroll thead th {
  position: sticky;
  top: 0;
  background: var(--surface-container-low);
  z-index: 1;
}

/* 脚本路径历史下拉 */
.path-history {
  position: absolute;
  z-index: 100;
  margin: 0;
  padding: 4px;
  list-style: none;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  max-height: 220px;
  overflow-y: auto;
}
.path-history li {
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--on-surface);
}
.path-history li:hover {
  background: var(--primary-container);
  color: var(--primary);
}