/* ============================================
   FOREX BACKTEST JOURNAL - Dark Theme CSS
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0b0f1a;
  --bg-card: #141c2e;
  --bg-card-hover: #1a2540;
  --bg-input: #0e1525;
  --bg-modal: #111827;
  --border: #1e2d4a;
  --border-focus: #3b82f6;
  --text-primary: #e2e8f0;
  --text-secondary: #8892a8;
  --text-muted: #5a6478;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --win: #22c55e;
  --win-bg: rgba(34,197,94,0.12);
  --loss: #ef4444;
  --loss-bg: rgba(239,68,68,0.12);
  --break-even: #eab308;
  --break-even-bg: rgba(234,179,8,0.12);
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --font-en: 'Inter', -apple-system, sans-serif;
  --font-fa: 'Vazirmatn', 'Tahoma', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.35);
  --transition: 0.2s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

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

body.lang-fa {
  font-family: var(--font-fa);
}

/* RTL Support */
body.lang-fa { direction: rtl; text-align: right; }
body.lang-fa .nav-left { flex-direction: row-reverse; }
body.lang-fa .nav-links { margin-left: 0; margin-right: auto; }
body.lang-fa .nav-right { margin-left: auto; margin-right: 0; }
body.lang-fa .modal-container { direction: rtl; }
body.lang-fa input, body.lang-fa select, body.lang-fa textarea {
  text-align: right;
  font-family: var(--font-fa);
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* --- Navigation Bar --- */
#navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  height: 60px;
  background: rgba(11,15,26,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo { font-size: 1.5rem; }

.nav-brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: 32px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
}

.nav-link:hover { color: var(--text-primary); background: var(--bg-card); }
.nav-link.active { color: var(--accent); background: rgba(59,130,246,0.1); }

.nav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.btn-lang {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
}

.btn-lang:hover { border-color: var(--accent); background: var(--bg-card-hover); }

/* --- Main Content --- */
#app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  min-height: calc(100vh - 60px);
}

/* --- Page Header --- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: none;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }

.btn-secondary { background: var(--bg-card); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); background: var(--bg-card-hover); }

.btn-danger { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-success { background: var(--win); color: #fff; }
.btn-success:hover { opacity: 0.9; }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 6px 10px;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-card); }

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
}

.card:hover { border-color: rgba(59,130,246,0.3); }

.card-clickable { cursor: pointer; }
.card-clickable:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

/* --- Setup Cards Grid --- */
.setup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.setup-card {
  position: relative;
  overflow: hidden;
}

.setup-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.setup-asset {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
}

.setup-strategy {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 2px;
}

.setup-badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(59,130,246,0.12);
  color: var(--accent);
}

.setup-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.setup-stat {
  text-align: center;
}

.setup-stat-value {
  font-size: 1.1rem;
  font-weight: 700;
}

.setup-stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.setup-card-actions {
  display: flex;
  gap: 6px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.setup-card-actions .btn { flex: 1; justify-content: center; }

/* --- Trade Card --- */
.trade-card {
  padding: 18px;
  margin-bottom: 12px;
  position: relative;
}

.trade-card.merged {
  border-left: 3px solid var(--accent);
}

.trade-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.trade-position {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
}

.trade-position.buy { background: var(--win-bg); color: var(--win); }
.trade-position.sell { background: var(--loss-bg); color: var(--loss); }

.outcome-badge {
  padding: 4px 12px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.outcome-badge.win { background: var(--win-bg); color: var(--win); }
.outcome-badge.loss { background: var(--loss-bg); color: var(--loss); }
.outcome-badge.break_even { background: var(--break-even-bg); color: var(--break-even); }

.trade-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.trade-detail {
  padding: 8px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
}

.trade-detail-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.trade-detail-value {
  font-weight: 600;
  font-size: 0.95rem;
}

.trade-notes {
  margin-top: 10px;
  padding: 10px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

.trade-screenshots {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.trade-screenshot {
  width: 160px;
  height: 100px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.trade-screenshot:hover { transform: scale(1.05); }

.trade-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* --- Merged Position Indicator --- */
.merged-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(59,130,246,0.12);
  color: var(--accent);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 8px;
}

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

.form-label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238892a8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

body.lang-fa .form-select {
  background-position: left 12px center;
  padding-right: 14px;
  padding-left: 36px;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

/* Outcome selector */
.outcome-selector {
  display: flex;
  gap: 10px;
}

.outcome-option {
  flex: 1;
  padding: 10px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
  background: transparent;
  color: var(--text-secondary);
}

.outcome-option:hover { border-color: var(--text-muted); }

.outcome-option.selected.win {
  border-color: var(--win);
  background: var(--win-bg);
  color: var(--win);
}

.outcome-option.selected.loss {
  border-color: var(--loss);
  background: var(--loss-bg);
  color: var(--loss);
}

.outcome-option.selected.break_even {
  border-color: var(--break-even);
  background: var(--break-even-bg);
  color: var(--break-even);
}

/* Trend selector */
.trend-selector {
  display: flex;
  gap: 10px;
}

.trend-option {
  flex: 1;
  padding: 10px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
  background: transparent;
  color: var(--text-secondary);
}

.trend-option.selected {
  border-color: var(--accent);
  background: rgba(59,130,246,0.12);
  color: var(--accent);
}

/* Position selector */
.position-selector {
  display: flex;
  gap: 10px;
}

.position-option {
  flex: 1;
  padding: 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  background: transparent;
  color: var(--text-secondary);
}

.position-option.selected.buy {
  border-color: var(--win);
  background: var(--win-bg);
  color: var(--win);
}

.position-option.selected.sell {
  border-color: var(--loss);
  background: var(--loss-bg);
  color: var(--loss);
}

/* File upload */
.file-upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.file-upload-area:hover {
  border-color: var(--accent);
  background: rgba(59,130,246,0.05);
}

.file-upload-area.has-file {
  border-color: var(--win);
  color: var(--win);
}

.upload-preview {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.upload-preview-item {
  position: relative;
  width: 100px;
  height: 70px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.upload-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-preview-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 20px;
  height: 20px;
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}

.modal-overlay.hidden { display: none; }

.modal-container {
  background: var(--bg-modal);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  transition: var(--transition);
}

.modal-close:hover { color: var(--text-primary); }

.modal-body { padding: 24px; }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* --- Analytics Dashboard --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.stat-card {
  text-align: center;
  padding: 20px 14px;
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-value.positive { color: var(--win); }
.stat-value.negative { color: var(--loss); }
.stat-value.neutral { color: var(--text-primary); }

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chart-container {
  padding: 20px;
  margin-bottom: 20px;
}

.chart-wrapper {
  position: relative;
  height: 300px;
  width: 100%;
}

/* --- Export Section --- */
.export-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

.export-card {
  text-align: center;
  padding: 30px 20px;
}

.export-card-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.export-card-title {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.export-card-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.empty-state-text {
  font-size: 1rem;
  margin-bottom: 20px;
}

/* --- Loading --- */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

.loading::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 10px;
  vertical-align: middle;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  z-index: 300;
  box-shadow: var(--shadow);
  transition: 0.3s ease;
  transform: translateY(10px);
  opacity: 0;
}

.toast.show { transform: translateY(0); opacity: 1; }
.toast.hidden { display: none; }
.toast.success { background: var(--win); color: #fff; }
.toast.error { background: var(--danger); color: #fff; }
.toast.info { background: var(--accent); color: #fff; }

/* --- Image Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

/* --- Separator --- */
.separator {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

/* --- Back Button --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.back-link:hover { color: var(--accent); }

/* --- Setup Detail Header --- */
.setup-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.setup-detail-info {
  flex: 1;
}

.setup-detail-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.setup-detail-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.setup-meta-item {
  padding: 6px 14px;
  background: var(--bg-input);
  border-radius: 6px;
  font-size: 0.85rem;
}

.setup-meta-item span {
  color: var(--text-muted);
  margin-right: 6px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  #navbar { padding: 0 12px; }
  .nav-links { display: none; }
  #app { padding: 16px; }
  .setup-grid { grid-template-columns: 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .export-options { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .trade-details { grid-template-columns: repeat(2, 1fr); }
  .modal-container { margin: 10px; }
}

/* Mobile nav hamburger */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px;
}

@media (max-width: 768px) {
  .nav-hamburger { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px;
  }
  .nav-links.open { display: flex; }
}