:root {
  color-scheme: light;
  --bg: #f4f8ff;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-solid: #ffffff;
  --text: #142033;
  --muted: #69788f;
  --line: rgba(43, 78, 124, 0.12);
  --cyan: #15c8d4;
  --blue: #3b82f6;
  --navy: #16345f;
  --green: #14b87a;
  --gold: #f5b544;
  --danger: #ef476f;
  --shadow: 0 24px 70px rgba(38, 71, 118, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  background:
    linear-gradient(135deg, #f8fbff 0%, #edf7ff 45%, #fff8eb 100%);
}

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(8px);
  opacity: 0.7;
  pointer-events: none;
}

.ambient-a {
  width: 420px;
  height: 420px;
  left: -120px;
  top: -120px;
  background: radial-gradient(circle, rgba(21, 200, 212, 0.24), transparent 68%);
}

.ambient-b {
  width: 520px;
  height: 520px;
  right: -160px;
  top: 18%;
  background: radial-gradient(circle, rgba(245, 181, 68, 0.22), transparent 68%);
}

button, input, select { font: inherit; }

button {
  border: 0;
  border-radius: 14px;
  padding: 12px 18px;
  cursor: pointer;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  font-weight: 800;
  box-shadow: 0 14px 30px rgba(59, 130, 246, 0.22);
}

button.ghost {
  color: var(--navy);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  box-shadow: none;
}

button.danger {
  background: linear-gradient(135deg, #ff6b8d, var(--danger));
  box-shadow: 0 14px 30px rgba(239, 71, 111, 0.22);
}

input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.92);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

input:focus, select:focus {
  border-color: rgba(21, 200, 212, 0.65);
  box-shadow: 0 0 0 4px rgba(21, 200, 212, 0.12);
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1440px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0;
}

.hidden { display: none !important; }

.brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  color: white;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 16px 34px rgba(21, 200, 212, 0.28);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

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

.login-card {
  width: min(520px, 100%);
  margin: 12vh auto;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.login-card h1 { margin: 0; font-size: 34px; }
.login-form { display: grid; gap: 12px; margin-top: 26px; }
.login-form label { color: var(--muted); font-weight: 700; }
.error { margin-top: 12px; color: var(--danger); font-weight: 700; }

#appPanel {
  display: grid;
  grid-template-columns: 270px 1fr;
  gap: 22px;
}

.sidebar {
  position: sticky;
  top: 24px;
  height: calc(100vh - 48px);
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255, 255, 255, .72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.sidebar .brand-row span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.nav {
  display: grid;
  gap: 8px;
  margin-top: 26px;
}

.nav a {
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 800;
}

.nav a.active,
.nav a:hover {
  color: var(--navy);
  background: linear-gradient(135deg, rgba(21, 200, 212, .14), rgba(59, 130, 246, .10));
}

.side-card {
  margin-top: 28px;
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(135deg, #ecfeff, #fff7df);
}

.side-card span { color: var(--muted); font-weight: 700; }
.side-card strong { display: block; margin-top: 8px; font-size: 22px; }
.side-card p { margin-bottom: 0; color: var(--muted); }

.content { min-width: 0; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.topbar h1 { margin: 0; font-size: clamp(30px, 4vw, 48px); letter-spacing: -.04em; }
.topbar p { margin-top: 6px; }
.actions { display: flex; gap: 10px; }

.panel,
.metric-card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel { padding: 24px; margin-bottom: 18px; }
.panel h2 { margin: 0 0 16px; font-size: 23px; letter-spacing: -.02em; }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 20px;
  background:
    radial-gradient(circle at 15% 10%, rgba(21, 200, 212, .20), transparent 35%),
    linear-gradient(135deg, rgba(255,255,255,.9), rgba(248,252,255,.78));
}

.hero h2 {
  margin: 0;
  font-size: clamp(42px, 7vw, 76px);
  color: var(--navy);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.hero-grid div,
.metric-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255,255,255,.72);
}

.hero-grid span,
.metric-card span {
  color: var(--muted);
  font-weight: 800;
}

.hero-grid strong,
.metric-card strong {
  display: block;
  margin-top: 8px;
  color: var(--navy);
  font-size: 24px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.metric-card small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--navy);
  font-weight: 800;
}

.switch input { display: none; }
.switch span {
  position: relative;
  width: 48px;
  height: 28px;
  border-radius: 999px;
  background: #dbe6f5;
  transition: .2s;
}
.switch span::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  left: 3px;
  top: 3px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 4px 10px rgba(0,0,0,.12);
  transition: .2s;
}
.switch input:checked + span { background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.switch input:checked + span::after { transform: translateX(20px); }

.grid { display: grid; gap: 18px; }
.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.kv {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 10px 12px;
  margin: 0;
}
.kv dt { color: var(--muted); font-weight: 800; }
.kv dd { margin: 0; font-weight: 700; word-break: break-word; }

pre,
.ai-box {
  overflow: auto;
  max-height: 320px;
  margin: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #f8fbff;
  color: var(--navy);
}

.ai-box {
  display: grid;
  gap: 10px;
}

.ai-roles {
  display: grid;
  gap: 8px;
  margin-top: 6px;
}

.ai-role {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
}

.ai-role strong {
  color: var(--navy);
  font-size: 13px;
}

.ai-role span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 12px;
  background: rgba(21, 200, 212, .12);
  color: var(--cyan);
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.save-status {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  font-weight: 800;
}

.config-form {
  display: grid;
  gap: 18px;
}

.form-section {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.58);
}

.form-section h3 {
  margin: 0 0 14px;
  color: var(--navy);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.form-grid label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-weight: 800;
}

.form-grid small {
  color: var(--cyan);
  font-weight: 800;
}

.wide { grid-column: span 2; }

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.strategy-preview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.strategy-preview div {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.66);
}

.strategy-preview span { color: var(--muted); font-weight: 800; }
.strategy-preview strong { display: block; margin-top: 7px; color: var(--navy); }

.signal-cards {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.signal-card {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.92), rgba(247,252,255,.78));
  box-shadow: 0 16px 38px rgba(38, 71, 118, .10);
  overflow: hidden;
}

.signal-card::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
}

.signal-card.short::after {
  background: linear-gradient(180deg, #ff8fab, var(--danger));
}

.signal-rank {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  color: white;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 12px 24px rgba(21, 200, 212, .22);
}

.signal-card.short .signal-rank {
  background: linear-gradient(135deg, #ff8fab, var(--danger));
}

.signal-title {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.signal-title strong {
  color: var(--navy);
  font-size: 22px;
}

.signal-title span {
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(21, 200, 212, .12);
  font-size: 12px;
  font-weight: 900;
}

.signal-card.short .signal-title span {
  color: var(--danger);
  background: rgba(239, 71, 111, .12);
}

.signal-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.signal-metrics {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.signal-metrics span {
  padding: 10px 12px;
  border-radius: 14px;
  color: var(--muted);
  background: rgba(255,255,255,.68);
  font-size: 13px;
  font-weight: 800;
}

.signal-metrics b {
  display: block;
  margin-top: 4px;
  color: var(--navy);
  word-break: break-word;
}

.empty-state {
  padding: 18px;
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255,255,255,.68);
  font-weight: 800;
}

.logs {
  display: grid;
  gap: 10px;
  max-height: 520px;
  overflow: auto;
}

.log-line {
  display: grid;
  grid-template-columns: 150px 80px 150px 1fr;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.62);
}

.INFO { color: var(--green); }
.WARN { color: var(--gold); }
.ERROR { color: var(--danger); }

@media (max-width: 1080px) {
  #appPanel { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .nav { grid-template-columns: repeat(3, 1fr); }
  .hero, .two, .quick-grid, .strategy-preview { grid-template-columns: 1fr 1fr; }
  .signal-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 18px, 1440px); padding: 12px 0; }
  .topbar, .controls, .section-head { flex-direction: column; align-items: stretch; }
  .hero, .two, .quick-grid, .form-grid, .strategy-preview { grid-template-columns: 1fr; }
  .wide { grid-column: span 1; }
  .log-line { grid-template-columns: 1fr; }
  .signal-card { grid-template-columns: 1fr; }
  .signal-metrics { grid-template-columns: 1fr; }
}