:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-card: rgba(30, 41, 59, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-focus: #3b82f6;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --pass-emerald: #10b981;
  --fail-rose: #f43f5e;
  --warn-amber: #f59e0b;

  --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --glass-backdrop: blur(12px);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Header Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: var(--glass-backdrop);
}

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

.brand-icon {
  font-size: 22px;
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
}

/* Layout */
.app-container {
  display: grid;
  grid-template-columns: 420px 1fr;
  height: calc(100vh - 60px);
  overflow: hidden;
}

/* Left Sidebar - Step Builder */
.sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  padding: 20px;
}

.section-title {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.preset-select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 14px;
  margin-bottom: 20px;
  outline: none;
  cursor: pointer;
}

.preset-select:focus {
  border-color: var(--border-focus);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 14px;
  outline: none;
}

.form-control:focus {
  border-color: var(--border-focus);
}

/* Step Builder List */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.step-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  position: relative;
  transition: all 0.2s ease;
}

.step-item:hover {
  border-color: rgba(255, 255, 255, 0.25);
}

.step-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.step-badge-num {
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
}

.btn-remove-step {
  background: none;
  border: none;
  color: var(--fail-rose);
  cursor: pointer;
  font-size: 14px;
}

.action-buttons {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.btn {
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.1);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Main Content Area */
.main-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  padding: 24px;
  gap: 24px;
}

/* Summary Banner */
.summary-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.stat-value {
  font-size: 22px;
  font-weight: 700;
}

.val-pass { color: var(--pass-emerald); }
.val-fail { color: var(--fail-rose); }
.val-blue { color: var(--accent-blue); }

/* Live Progress & Screenshot Gallery */
.console-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex-grow: 1;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-title {
  font-size: 16px;
  font-weight: 600;
}

.live-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.live-step-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.live-step-card.status-pass {
  border-color: rgba(16, 185, 129, 0.4);
}

.live-step-card.status-fail {
  border-color: rgba(244, 63, 94, 0.4);
}

.live-card-head {
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
  font-size: 13px;
  font-weight: 600;
}

.live-card-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.live-img-box {
  width: 100%;
  height: 150px;
  background: #050811;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.live-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
}

.err-toast {
  background: rgba(244, 63, 94, 0.15);
  color: #fda4af;
  padding: 8px;
  border-radius: 6px;
  font-size: 12px;
  font-family: monospace;
}

/* Tabs & Logs */
.tab-header {
  display: flex;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
}

.tab-btn.active {
  color: var(--accent-blue);
  border-bottom: 2px solid var(--accent-blue);
}

.tab-content {
  background: #070a13;
  border-radius: 8px;
  padding: 12px;
  max-height: 200px;
  overflow-y: auto;
  font-family: monospace;
  font-size: 12px;
}

.log-line {
  margin-bottom: 4px;
  line-height: 1.4;
}

.log-line.err { color: var(--fail-rose); }
.log-line.warn { color: var(--warn-amber); }
.log-line.info { color: var(--text-muted); }