:root {
  --bg-dark: #0a0e17;
  --bg-card: #111827;
  --bg-card-hover: #1f2937;
  --border-color: #1f293d;
  --border-subtle: #2d3748;
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --accent-purple: #8b5cf6;

  --glow-green: rgba(16, 185, 129, 0.15);
  --glow-red: rgba(239, 68, 68, 0.15);
  --glow-blue: rgba(59, 130, 246, 0.15);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
}

/* 🔐 LOGIN OVERLAY */
.login-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, #111827 0%, #030712 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(12px);
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: rgba(17, 24, 39, 0.85);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 40px rgba(59, 130, 246, 0.1);
  text-align: center;
}

.login-logo {
  font-size: 3rem;
  margin-bottom: 12px;
}

.login-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.login-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

.form-group {
  text-align: left;
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: #1f2937;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s;
}

.form-group input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.login-error {
  color: var(--accent-red);
  font-size: 0.825rem;
  margin-bottom: 14px;
  min-height: 18px;
}

.btn-login {
  width: 100%;
  padding: 13px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #fff;
  border: none;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
  transition: all 0.2s;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
}

.login-footer {
  margin-top: 24px;
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* 🌟 APP CONTAINER */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ÜST NAVİGASYON BARI */
.top-nav {
  background: rgba(17, 24, 39, 0.9);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

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

.brand-icon {
  font-size: 1.8rem;
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-sub {
  font-size: 0.725rem;
  color: var(--text-dim);
}

.market-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #1e293b;
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.timer-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #1f2937;
  border: 1px solid var(--border-subtle);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.timer-label {
  color: var(--text-muted);
}

.timer-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--accent-cyan);
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 4px;
  border-radius: 4px;
  transition: all 0.15s;
}

.btn-icon:hover {
  background: #374151;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #1e293b;
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
}

.btn-logout {
  background: #374151;
  border: none;
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.7rem;
  cursor: pointer;
}

.btn-pwd {
  background: rgba(59, 130, 246, 0.2);
  border: 1px solid var(--accent-blue);
  color: #93c5fd;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-pwd:hover {
  background: var(--accent-blue);
  color: #fff;
}

.btn-logout:hover {
  background: var(--accent-red);
  color: #fff;
}

/* 🔑 MODAL DİALOGLARI */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 420px;
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.btn-close-modal {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
}

.btn-close-modal:hover {
  color: #fff;
}

.pwd-msg {
  font-size: 0.8rem;
  margin-bottom: 12px;
  min-height: 18px;
}

.pwd-msg.success { color: var(--accent-green); }
.pwd-msg.error { color: var(--accent-red); }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.btn-cancel {
  background: #374151;
  border: none;
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  cursor: pointer;
}

.btn-save-pwd {
  background: var(--accent-blue);
  border: none;
  color: #fff;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  cursor: pointer;
}

/* KONTROL & HİSSE SEÇİM PANELİ */
.control-panel {
  background: #111827;
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
}

.input-action-row {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.custom-ticker-input label,
.interval-select label,
.strategy-param label,
.autotrade-toggle label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-icon .input-icon {
  position: absolute;
  left: 10px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.input-with-icon input {
  padding: 8px 12px 8px 34px;
  border-radius: var(--radius-sm);
  background: #1f2937;
  border: 1px solid var(--border-subtle);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.95rem;
  outline: none;
  width: 180px;
}

.btn-group {
  display: flex;
  background: #1f2937;
  padding: 3px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.btn-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-tab.active {
  background: var(--accent-blue);
  color: #fff;
}

.strategy-param input {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: #1f2937;
  border: 1px solid var(--border-subtle);
  color: #fff;
  font-size: 0.85rem;
  font-family: 'JetBrains Mono', monospace;
  width: 100px;
  outline: none;
}

/* Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #374151;
  transition: .2s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .2s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-green);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

.btn-start {
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
  border: none;
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
  transition: all 0.15s;
}

.btn-start:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.5);
}

/* Hızlı Hisse Butonları */
.quick-tickers-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-color);
}

.quick-category {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.cat-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-dim);
  min-width: 100px;
}

.cat-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip-btn {
  background: #1f2937;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.chip-btn:hover, .chip-btn.active {
  background: #2563eb;
  border-color: #3b82f6;
  color: #fff;
}

/* ANA GÖSTERGE ALANI */
.main-dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 20px;
  padding: 24px;
  flex: 1;
}

@media (max-width: 1100px) {
  .main-dashboard-grid {
    grid-template-columns: 1fr;
  }
}

/* KARTLAR */
.signal-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.card-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.price-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
}

.price-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 4px;
}

.forecast-diff {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-green);
  margin-top: 4px;
}

.signal-badge-big {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: #374151;
  color: #fff;
  margin-top: 2px;
}

.signal-badge-big.buy {
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid var(--accent-green);
  color: var(--accent-green);
  box-shadow: 0 0 16px var(--glow-green);
}

.signal-badge-big.sell {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid var(--accent-red);
  color: var(--accent-red);
  box-shadow: 0 0 16px var(--glow-red);
}

.signal-reason {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.3;
}

.regime-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent-cyan);
}

.regime-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.3;
}

/* GRAFİK KARTI */
.chart-container-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.chart-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.95rem;
}

.vade-tag {
  background: #1f2937;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.chart-indicators {
  display: flex;
  gap: 8px;
}

.ind-pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  background: #1f2937;
  color: var(--text-muted);
}

.ind-pill.proj {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.ind-pill.dl {
  background: rgba(139, 92, 246, 0.18);
  color: #c4b5fd;
  border: 1px solid rgba(139, 92, 246, 0.4);
}

.ind-pill.ts {
  background: rgba(59, 130, 246, 0.15);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.ind-pill.ml {
  background: rgba(245, 158, 11, 0.15);
  color: #fde68a;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.plotly-chart-box {
  width: 100%;
  height: 480px;
}

/* LİDERLİK TABLOSU */
.leaderboard-card, .portfolio-card, .trades-log-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-head h3 {
  font-size: 0.95rem;
  font-weight: 700;
}

.head-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.data-table th {
  text-align: left;
  padding: 10px;
  background: #1f2937;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.7rem;
}

.data-table td {
  padding: 10px;
  border-bottom: 1px solid var(--border-color);
  font-family: 'JetBrains Mono', monospace;
}

.data-table tr.winner-row {
  background: rgba(16, 185, 129, 0.08);
  font-weight: 700;
}

.winner-badge {
  background: var(--accent-green);
  color: #000;
  font-weight: 800;
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
}

/* SAĞ PANEL: SANAL PORTFÖY */
.portfolio-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.port-metric {
  background: #1f2937;
  padding: 12px;
  border-radius: var(--radius-sm);
}

.pm-label {
  display: block;
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.pm-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.05rem;
  font-weight: 700;
}

.pm-val.highlight {
  color: var(--accent-green);
}

.btn-reset-port {
  background: #374151;
  border: none;
  color: var(--text-muted);
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
}

.btn-reset-port:hover {
  background: var(--accent-red);
  color: #fff;
}

.open-positions-sec h4, .manual-trade-box h4 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.positions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.pos-item {
  background: #1e293b;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pos-title {
  font-weight: 700;
  font-size: 0.85rem;
}

.pos-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.pos-pnl {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.85rem;
}

.no-pos {
  text-align: center;
  padding: 14px;
  color: var(--text-dim);
  font-size: 0.78rem;
  background: #1a2234;
  border-radius: var(--radius-sm);
}

.manual-inputs {
  display: flex;
  gap: 8px;
}

.manual-inputs input {
  flex: 1;
  padding: 8px;
  background: #1f2937;
  border: 1px solid var(--border-subtle);
  color: #fff;
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
}

.btn-buy {
  background: var(--accent-green);
  color: #000;
  font-weight: 700;
  border: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-sell {
  background: var(--accent-red);
  color: #fff;
  font-weight: 700;
  border: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.trades-scroll {
  max-height: 280px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.trade-row {
  background: #1a2234;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.trade-type-badge {
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.65rem;
}

.trade-type-badge.ALIS {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
}

.trade-type-badge.SATIS {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
}

.ref-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.ref-icon {
  font-size: 1.2rem;
}