/* ========================================
   EA Generator - Styles
   ======================================== */

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a25;
  --border: #2a2a3a;
  --text: #e0e0e8;
  --text-dim: #a0a0b8;
  --text-bright: #ffffff;
  --accent: #4f8fff;
  --accent-hover: #6ba0ff;
  --accent-dim: rgba(79, 143, 255, 0.15);
  --green: #34d399;
  --green-dim: rgba(52, 211, 153, 0.15);
  --red: #f87171;
  --red-dim: rgba(248, 113, 113, 0.15);
  --yellow: #fbbf24;
  --yellow-dim: rgba(251, 191, 36, 0.15);
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  padding: 32px 0 16px;
  text-align: center;
}
.logo {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.5px;
}
.tagline {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 4px;
}

/* Steps */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 24px 0;
}
.step {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 20px;
  opacity: 0.4;
  transition: all 0.3s;
}
.step.active {
  opacity: 1;
  background: var(--accent-dim);
}
.step.completed {
  opacity: 0.7;
}
.step.completed .step-num {
  background: var(--green);
  color: var(--bg);
}
.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
}
.step.active .step-num {
  background: var(--accent);
  color: white;
}
.step-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
}
.step.active .step-label {
  color: var(--text-bright);
}
.step-line {
  width: 40px;
  height: 2px;
  background: var(--border);
}

/* Panel */
.panel {
  padding-bottom: 32px;
}
.panel h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 4px;
}
.panel .desc {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 20px;
}

/* Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 16px;
}
.card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 12px;
}
.card.highlight {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent-dim), var(--bg-card));
}
.card.success {
  border-color: var(--green);
  background: linear-gradient(135deg, var(--green-dim), var(--bg-card));
  text-align: center;
}
.card.warning {
  border-color: var(--yellow);
  background: linear-gradient(135deg, var(--yellow-dim), var(--bg-card));
}
.card.warning ul {
  list-style: none;
  padding: 0;
}
.card.warning li {
  padding: 6px 0;
  font-size: 14px;
  color: var(--yellow);
}
.card.warning li::before {
  content: "\26A0  ";
}

/* Tabs */
.tab-bar {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 4px;
  border: 1px solid var(--border);
}
.tab {
  flex: 1;
  padding: 8px 16px;
  border: none;
  background: none;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}
.tab.active {
  background: var(--accent);
  color: white;
}
.tab:hover:not(.active) {
  color: var(--text);
  background: var(--bg-card-hover);
}
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.dropzone-icon {
  color: var(--text-dim);
  margin-bottom: 12px;
}
.dropzone p {
  font-size: 15px;
  color: var(--text);
}
.dropzone-sub {
  font-size: 13px !important;
  color: var(--text-dim) !important;
  margin-top: 4px;
}

/* File Info */
.file-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 12px;
}
.file-name {
  font-size: 14px;
  font-family: var(--mono);
  color: var(--accent);
}

/* CSV Format Help */
.csv-format-help {
  margin-top: 16px;
}
.csv-format-help details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}
.csv-format-help summary {
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
}
.format-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}
.format-grid h4 {
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
}
.format-grid code {
  font-size: 11px;
  color: var(--text-dim);
  font-family: var(--mono);
  word-break: break-all;
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.form-group.full-width {
  grid-column: 1 / -1;
  margin-top: 8px;
}
.form-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
input, select, textarea {
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}
textarea {
  resize: vertical;
  font-family: var(--mono);
  font-size: 13px;
}
.range-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
}
.range-inputs input {
  width: 70px;
}
.range-inputs span {
  color: var(--text-dim);
}

/* Toggle */
.toggle-group {
  display: flex;
  gap: 16px;
}
.toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  cursor: pointer;
}
.toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

/* Buttons */
.btn {
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
}
.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
}
.btn-icon {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
}
.btn-icon:hover {
  color: var(--red);
  background: var(--red-dim);
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
}
.btn-download:hover {
  background: var(--accent);
  color: white;
}
.actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}
.metric {
  text-align: center;
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius);
}
.metric-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
}
.metric-value.good { color: var(--green); }
.metric-value.bad { color: var(--red); }
.metric-value.warn { color: var(--yellow); }
.metric-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* Criteria */
.criteria-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.criteria-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--bg);
  border-radius: 6px;
  font-size: 14px;
}
.criteria-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}
.criteria-icon.pass {
  background: var(--green-dim);
  color: var(--green);
}
.criteria-icon.fail {
  background: var(--red-dim);
  color: var(--red);
}

/* Patterns */
.patterns-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.pattern-item {
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius);
}
.pattern-item h4 {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.pattern-item p {
  font-size: 14px;
  color: var(--text);
}

/* Strategy Result */
.strategy-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.strategy-confidence {
  font-size: 13px;
  color: var(--text-dim);
}

/* Strategy Preview */
.strategy-preview {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
}
.strategy-preview .signal-block {
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius);
  margin-bottom: 8px;
}
.strategy-preview .signal-label {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 4px;
}
.strategy-preview .signal-code {
  color: var(--text);
  white-space: pre-wrap;
}

/* Success */
.success-icon {
  color: var(--green);
  margin-bottom: 12px;
}
.ea-name-display {
  font-size: 18px;
  font-family: var(--mono);
  color: var(--accent);
  margin-top: 8px;
}

/* File List */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg);
  border-radius: var(--radius);
}
.file-item-name {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
}
.file-item-size {
  font-size: 12px;
  color: var(--text-dim);
  margin-left: 12px;
}

/* Code Preview */
.code-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}
.code-tab {
  padding: 6px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font);
}
.code-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.code-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  max-height: 400px;
  overflow-y: auto;
}
.code-preview code {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  line-height: 1.6;
  white-space: pre;
}

/* Settings Table */
.settings-table {
  width: 100%;
  border-collapse: collapse;
}
.settings-table th,
.settings-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.settings-table th {
  color: var(--text-dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}
.settings-table td:last-child {
  font-family: var(--mono);
  color: var(--accent);
}

/* Deploy Steps */
.deploy-steps {
  padding-left: 20px;
}
.deploy-steps li {
  padding: 4px 0;
  font-size: 14px;
}
.deploy-steps code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
}

/* Footer */
.footer {
  padding: 24px 0;
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: 32px;
}
.footer p {
  font-size: 12px;
  color: var(--text-dim);
}

/* Config sections */
.config-sections .card + .card {
  margin-top: 4px;
}

/* Responsive */
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .format-grid { grid-template-columns: 1fr; }
  .patterns-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { flex-wrap: wrap; gap: 4px; }
  .step-line { display: none; }
}

/* Hour Distribution Chart */
.hour-chart {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 60px;
  padding-top: 8px;
}
.hour-bar {
  flex: 1;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
  min-height: 1px;
  transition: height 0.3s;
  opacity: 0.6;
}
.hour-bar.peak {
  opacity: 1;
}
.hour-labels {
  display: flex;
  gap: 2px;
  font-size: 9px;
  color: var(--text-dim);
}
.hour-labels span {
  flex: 1;
  text-align: center;
}

/* Loading State */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-dim);
}
.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Strategy Cards */
.strategy-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
}
.strategy-card {
  cursor: pointer;
  display: block;
}
.strategy-card input[type="radio"] {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.strategy-card input[type="radio"]:focus + .strategy-card-inner {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.strategy-card-inner {
  padding: 12px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
}
.strategy-card:hover .strategy-card-inner {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.strategy-card.selected .strategy-card-inner {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.strategy-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 4px;
}
.strategy-card-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.4;
}

/* Required / Optional badges */
.required {
  color: var(--red);
  font-size: 12px;
}
.optional-badge {
  font-size: 11px;
  color: var(--text-dim);
  font-weight: 400;
  background: var(--bg);
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 6px;
}

/* Auto-complete list */
.autocomplete-list {
  list-style: none;
  padding: 0;
}
.autocomplete-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 13px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.autocomplete-list li:last-child {
  border-bottom: none;
}
.autocomplete-list .ac-label {
  color: var(--text-dim);
  min-width: 140px;
}
.autocomplete-list .ac-value {
  color: var(--accent);
  font-family: var(--mono);
}
.autocomplete-list .ac-badge {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--yellow-dim);
  color: var(--yellow);
}

/* Image preview */
#imagePreviewImg {
  border: 1px solid var(--border);
}

/* Condition Builder */
.condition-row {
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  position: relative;
}
.condition-row + .condition-row::before {
  content: "AND";
  display: block;
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  padding: 4px 0;
  margin: -20px 0 8px;
  background: var(--bg-card);
  width: 40px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 4px;
  position: relative;
  top: -4px;
}
.condition-grid {
  grid-template-columns: 1fr 1fr 1fr 1fr;
}
.btn-add-condition {
  display: block;
  width: 100%;
  padding: 8px;
  margin-top: 8px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--accent);
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.2s;
}
.btn-add-condition:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}
.btn-remove-condition {
  position: absolute;
  top: 8px;
  right: 8px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 16px;
  padding: 2px 6px;
  border-radius: 4px;
}
.btn-remove-condition:hover {
  color: var(--red);
  background: var(--red-dim);
}

/* Inline Error */
.inline-error {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--red-dim);
  border: 1px solid var(--red);
  border-radius: var(--radius);
  color: var(--red);
  font-size: 14px;
  margin-top: 12px;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Thumbnail Grid */
.image-thumbnails { margin-top: 12px; }
.thumb-header {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.thumb-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
  margin-bottom: 8px;
}
.thumb-item {
  position: relative;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.thumb-img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  display: block;
}
.thumb-name {
  font-size: 10px;
  color: var(--text-dim);
  padding: 4px 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.thumb-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 20px;
  height: 20px;
  background: rgba(0,0,0,0.7);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.thumb-remove:hover {
  background: var(--red);
}

/* Footer privacy badge */
.footer .privacy-note {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--green-dim);
  padding: 4px 12px;
  border-radius: 20px;
  color: var(--green);
  font-size: 12px;
  font-weight: 500;
  margin-top: 8px;
}

/* Responsive */
@media (max-width: 640px) {
  .strategy-cards { grid-template-columns: 1fr; }
  .condition-grid { grid-template-columns: 1fr 1fr; }
  .actions { flex-direction: column; }
  .actions .btn { width: 100%; padding: 14px; font-size: 16px; }
  .dropzone { padding: 32px 16px; }
}
@media (max-width: 480px) {
  .condition-grid { grid-template-columns: 1fr; }
}