/* =====================================================
   ESP Web Flasher — Premium Stepped UI
   ===================================================== */

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

:root {
  /* Colors */
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-input: #f8fafc;
  
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-light: #eff6ff;
  --primary-glow: rgba(59, 130, 246, 0.15);
  
  --success: #10b981;
  --success-light: #ecfdf5;
  --warning: #f59e0b;
  --danger: #ef4444;
  
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  --border: #e2e8f0;
  --border-focus: #3b82f6;
  
  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* ─── Global Reset ────────────────────────────────── */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  transition: background-color var(--transition), color var(--transition);
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 5px 1px 5px; /* Increased top padding */
}

/* ─── Stepper ─────────────────────────────────────── */
.stepper-container {
  margin-bottom: 24px;
}

.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px 24px;
  box-shadow: var(--shadow-sm);
}

.step {
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0.4;
  transition: opacity var(--transition);
}

.step.active {
  opacity: 1;
}

.step.active .step-circle {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.step.done .step-circle {
  background: var(--success);
  color: white;
  border-color: var(--success);
}

.step-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-surface);
  transition: all var(--transition);
}

.step-label {
  display: flex;
  flex-direction: column;
}

.step-num {
  font-size: 10px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.05em;
}

.step-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.step-connector {
  flex: 1;
  height: 1px;
  background: var(--border);
  margin: 0 16px;
}

/* ─── Main Content & Steps ────────────────────────── */
.step-section {
  display: none;
  animation: slideIn 0.3s ease-out;
}

.step-section.active {
  display: block;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.main-step-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 300px; /* Reduced to a minimalist uniform height */
}

.step-card-header {
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
}

.step-card-body {
  padding: 24px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.step-card-body.centered {
  align-items: center;
  justify-content: center;
  text-align: center;
}

.step-card-footer {
  padding: 16px 32px;
  background: var(--bg-hover);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

/* ─── Compact Grid Layouts ─── */
.compact-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
  width: 100%;
}

.compact-item-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.horizontal-flow {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-item label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.info-item .value {
  font-size: 15px;
  font-weight: 600;
}

.footer-status-text {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ─── Specifically for Step 1 ─── */
.config-item.wide {
  max-width: 100%;
}

.config-item label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

select {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  outline: none;
  cursor: pointer;
  transition: all var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
}

select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}

/* ─── Specifically for Step 2 ─── */
.connect-ui {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.step-heading {
  font-size: 18px;
  font-weight: 700;
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 360px;
}

.card-icon.large {
  width: 64px;
  height: 64px;
  font-size: 32px;
  border-radius: var(--radius-lg);
  background: var(--success-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.chip-info-summary {
  margin-top: 16px;
  padding: 8px 16px;
  background: var(--bg-hover);
  border-radius: 20px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ─── Specifically for Step 3 ─── */
.flash-setup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

@media (max-width: 600px) {
  .flash-setup-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.info-group {
  margin-bottom: 20px;
}

.info-group label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.info-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.select-wrapper.mini select {
  height: 36px;
  font-size: 13px;
  padding: 0 12px;
  max-width: 140px;
}

.flash-actions-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.secondary-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* ─── Buttons ─────────────────────────────────────── */
.btn {
  height: 44px;
  padding: 0 24px;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:not(:disabled):hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-success {
  background: var(--success);
  color: white;
}

.btn-full {
  width: 100%;
}

.btn-text {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}

.btn-text:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

/* ─── Log Section ─────────────────────────────────── */
.log-section {
  margin-top: 24px;
}

.log-card {
  padding: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.console-toolbar {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.log-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-title {
  font-size: 14px;
  font-weight: 700;
}

.log-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-hover);
  padding: 2px 8px;
  border-radius: 12px;
}

.dot-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.dot-indicator.green {
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
}

.log-console {
  height: 200px;
  background: #0f172a; /* Always dark for logs */
  color: #e2e8f0;
  padding: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  overflow-y: auto;
  line-height: 1.6;
}

.log-line {
  margin-bottom: 4px;
  white-space: pre-wrap;
  word-break: break-all;
}

.log-time {
  color: #64748b;
  margin-right: 12px;
  user-select: none;
}

.log-text.error { color: #f87171; }
.log-text.success { color: #4ade80; }
.log-text.warn { color: #fbbf24; }
.log-text.info { color: #94a3b8; }
.log-text.accent { color: #60a5fa; }
.log-text.dim { color: #475569; }

/* ─── Progress ────────────────────────────────────── */
.progress-section {
  margin-top: 24px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.progress-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.progress-pct {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

.progress-track {
  height: 8px;
  background: var(--bg-hover);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-badges {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.file-badge {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 16px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.file-badge.active { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.file-badge.done { border-color: var(--success); color: var(--success); background: var(--success-light); }

/* ─── Status Dot Anim ─────────────────────────────── */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.disconnected { background: var(--text-muted); }
.status-dot.connected { 
  background: var(--success); 
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.7; }
  100% { transform: scale(1); opacity: 1; }
}

/* ─── Theme Toggle ────────────────────────────────── */
.theme-toggle {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border);
  padding: 4px;
  border-radius: 20px;
}

.theme-btn {
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.theme-btn.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}


/* ─── Toasts ───────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
}

.toast {
  padding: 12px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  animation: toastIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transition: opacity 0.3s ease;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); color: var(--danger); }
.toast.warning { border-left: 4px solid var(--warning); }

/* ─── Project Chips ─── */
.project-chip {
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}

.chip-active {
  background: var(--success-light);
  color: var(--success);
}