/* ==========================================================================
   Base Styles, Layout, Header, Ribbon, Dock, and Responsive Pro Mode
   ========================================================================== */

:root {
  --bg-base: #0b0e11;
  --bg-surface: #181a20;
  --bg-card: #1e2329;
  --bg-subtle: #2b313a;
  --bg-active: #363d47;
  --border-color: #23272e;
  --border-light: #2b313a;
  --text-main: #eaecef;
  --text-muted: #848e9c;
  --text-dim: #5e6673;
  --binance-gold: #f0b90b;
  --binance-gold-hover: #fcd535;
  --color-bull: #0ecb81;
  --color-bull-bg: rgba(14, 203, 129, 0.15);
  --color-bear: #f6465d;
  --color-bear-bg: rgba(246, 70, 93, 0.15);
  --color-bb: #38bdf8;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* Global visibility utility — JS toggles this class to show/hide panels */
.hidden {
  display: none !important;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

/* Form fields must stay editable/selectable despite the global rule above.
   Without this, mobile browsers (iOS Safari/WebKit) block the caret and the
   long-press Paste menu inside inputs — making API keys impossible to enter. */
input,
textarea,
select,
[contenteditable] {
  user-select: text;
  -webkit-user-select: text;
}
input:focus,
textarea:focus,
select:focus,
[contenteditable]:focus {
  user-select: text;
  -webkit-user-select: text;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-ui);
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;
}

.app-root {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  height: 100dvh;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
  position: relative;
}

/* Top App Bar */
.app-header {
  height: 50px;
  min-height: 50px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  z-index: 30;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.symbol-pill-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.symbol-pill-trigger:active {
  transform: scale(0.96);
  background: var(--bg-subtle);
}

.symbol-pill-trigger .sym-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.2px;
}

.symbol-pill-trigger .sym-tag {
  font-size: 9px;
  font-weight: 700;
  background: rgba(240, 185, 11, 0.2);
  color: var(--binance-gold);
  padding: 1px 5px;
  border-radius: 4px;
}

.symbol-pill-trigger .sym-arrow {
  font-size: 9px;
  color: var(--text-muted);
}

/* 5m Candle Countdown in Header */
.header-timer {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(240, 185, 11, 0.12);
  border: 1px solid rgba(240, 185, 11, 0.35);
  border-radius: 16px;
  padding: 4px 10px;
  cursor: pointer;
}

.header-timer:active {
  transform: scale(0.96);
}

.timer-icon {
  font-size: 11px;
}

.timer-text {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--binance-gold);
  min-width: 40px;
  text-align: center;
}

.timer-text.urgent {
  color: var(--color-bear);
  animation: pulse-urgent 1s infinite;
}

@keyframes pulse-urgent {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-touch-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.12s;
}

.icon-touch-btn:active {
  transform: scale(0.92);
  background: var(--bg-subtle);
}

.icon-touch-btn.active {
  background: rgba(240, 185, 11, 0.2);
  border-color: var(--binance-gold);
  color: var(--binance-gold);
}

/* Live WS Status Indicator */
.status-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 12px;
  background: rgba(14, 203, 129, 0.12);
  border: 1px solid rgba(14, 203, 129, 0.3);
  font-size: 10px;
  font-weight: 700;
  color: var(--color-bull);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-bull);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(14, 203, 129, 0.7); }
  70% { box-shadow: 0 0 0 5px rgba(14, 203, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(14, 203, 129, 0); }
}

.status-badge.offline {
  background: rgba(246, 70, 93, 0.12);
  border-color: rgba(246, 70, 93, 0.3);
  color: var(--color-bear);
}
.status-badge.offline .status-dot {
  background: var(--color-bear);
  animation: none;
}
.status-badge.connecting {
  background: rgba(240, 185, 11, 0.12);
  border-color: rgba(240, 185, 11, 0.3);
  color: var(--binance-gold);
}
.status-badge.connecting .status-dot {
  background: var(--binance-gold);
}

/* Real-Time Price & Stats Ribbon (Optimized for Android Screens) */
.stats-ribbon {
  background: var(--bg-base);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}

.stats-primary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.price-wrap {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.live-price {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
  padding: 1px 4px;
  border-radius: 4px;
  transition: color 0.15s, background 0.3s;
}

.live-price.flash-up {
  background: var(--color-bull-bg);
  color: var(--color-bull);
}

.live-price.flash-down {
  background: var(--color-bear-bg);
  color: var(--color-bear);
}

.change-badge {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.change-badge.bull {
  color: var(--color-bull);
  background: var(--color-bull-bg);
}

.change-badge.bear {
  color: var(--color-bear);
  background: var(--color-bear-bg);
}

/* 24h Range HUD (Distance to 24h High & Low) */
.range-hud {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 125px;
  max-width: 175px;
  flex: 1;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  padding: 3px 6px;
  border-radius: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}

.range-hud:active {
  transform: scale(0.98);
  background: var(--bg-subtle);
  border-color: rgba(255, 255, 255, 0.15);
}

.range-hud-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

.range-hud-low {
  color: var(--color-bull);
  white-space: nowrap;
}

.range-hud-high {
  color: var(--color-bear);
  white-space: nowrap;
}

.range-hud-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 4px;
  background: var(--bg-base);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  letter-spacing: -0.2px;
}

.range-hud-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  position: relative;
}

.range-hud-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--color-bull), var(--binance-gold));
  width: 50%;
  transition: width 0.25s ease-out;
}

.range-hud-pin {
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  border: 1.5px solid var(--bg-base);
  box-shadow: 0 0 5px rgba(255, 255, 255, 0.9);
  transform: translate(-50%, -50%);
  left: 50%;
  transition: left 0.25s ease-out;
  z-index: 2;
}

/* 24h Stats Mini Grid */
.stats-secondary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow-x: auto;
  gap: 12px;
  padding-bottom: 2px;
}

.stat-col {
  display: flex;
  flex-direction: column;
  gap: 1px;
  white-space: nowrap;
}

.stat-col.clickable {
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

.stat-col.clickable:active {
  opacity: 0.7;
}

.stat-col .lbl {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.stat-col .val {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-main);
}

.stat-dist {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  line-height: 1.2;
}

.stat-dist.dist-bear {
  color: var(--color-bear);
}

.stat-dist.dist-bull {
  color: var(--color-bull);
}


/* Mobile Bottom Dock (Thumb Zone for Android) */
.bottom-dock {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  width: 100%;
  box-sizing: border-box;
  z-index: 30;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.4);
}

/* Timeframe Trigger Badge in Dock */
.dock-tf-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  font-weight: 800;
  font-family: var(--font-mono);
  background: rgba(240, 185, 11, 0.16);
  border: 1px solid var(--binance-gold);
  color: var(--binance-gold);
  border-radius: 5px;
  padding: 1px 5px;
  line-height: 14px;
  letter-spacing: 0.2px;
  box-shadow: 0 0 8px rgba(240, 185, 11, 0.25);
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
  pointer-events: none;
}
.dock-btn.active .dock-tf-badge {
  background: var(--binance-gold);
  color: #0b0e11;
  font-weight: 900;
}


/* Bottom Action Buttons (Stretched dynamically across full screen width) */
.dock-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 4px;
  padding: 4px 6px calc(4px + env(safe-area-inset-bottom, 0px)) 6px;
  box-sizing: border-box;
}

.dock-btn {
  flex: 1 1 0;
  min-width: 0;
  width: 100%;
  height: 44px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.dock-btn:active {
  background: var(--bg-card);
  color: var(--text-main);
}

.dock-btn.active {
  color: var(--binance-gold);
}

.dock-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.dock-btn span {
  font-size: 9.5px;
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: -0.2px;
}

/* Left & Right Chart Navigation Buttons on the Bottom Nav Bar Edges */
.dock-btn.dock-nav-btn {
  color: var(--binance-gold);
  background: rgba(240, 185, 11, 0.08);
  border: 1px solid rgba(240, 185, 11, 0.22);
}

.dock-btn.dock-nav-btn:active {
  background: rgba(240, 185, 11, 0.28);
  border-color: var(--binance-gold);
  transform: scale(0.92);
  color: #fff;
}

.dock-btn.dock-nav-btn svg {
  fill: none;
  stroke: currentColor;
  width: 18px;
  height: 18px;
}

.dock-btn.dock-nav-btn:active svg {
  stroke: #fff;
}

.dock-btn.dock-nav-btn span {
  font-size: 9.5px;
  font-weight: 800;
  color: var(--binance-gold);
  letter-spacing: 0.2px;
}

.dock-btn.dock-nav-btn:active span {
  color: #fff;
}


/* Android Material 3 Style Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--bg-subtle);
  border-radius: 24px;
  transition: .25s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: .25s;
}

input:checked + .slider {
  background-color: var(--binance-gold);
}

input:checked + .slider:before {
  transform: translateX(20px);
  background-color: #000;
}

/* Loading Spinner */
.loader-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 14, 17, 0.7);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 25;
}

.loader-overlay.show {
  display: flex;
}

.android-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(240, 185, 11, 0.2);
  border-top-color: var(--binance-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Android Native-Style Toast Pill */
.android-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(30, 35, 41, 0.95);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  padding: 8px 18px;
  border-radius: 24px;
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
  white-space: nowrap;
}

.android-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Symbol Navigation Chevrons in Header */
.symbol-nav-group {
  display: flex;
  align-items: center;
  gap: 3px;
}

.icon-nav-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.12s ease;
  flex-shrink: 0;
}

.icon-nav-btn:active {
  transform: scale(0.88);
  background: var(--bg-subtle);
  color: var(--binance-gold);
}

.icon-nav-btn:hover {
  color: var(--text-main);
  border-color: var(--binance-gold);
}

.sym-tag.cat-tag {
  background: rgba(240, 185, 11, 0.2);
  color: var(--binance-gold);
  font-size: 9px;
  font-weight: 800;
  padding: 1px 5px;
  border-radius: 4px;
  letter-spacing: 0.3px;
  cursor: pointer;
}

/* Chart Style Pill in Touch Legend */
.chart-type-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--binance-gold);
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  cursor: pointer;
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: auto;
  transition: all 0.12s;
}

.chart-type-pill:active {
  transform: scale(0.92);
  background: var(--bg-subtle);
}

/* Landscape Pro Mode: Auto-adapts for Fullscreen Candlestick View */
@media (orientation: landscape) {
  .stats-secondary { display: none; }
  .app-header { height: 38px; min-height: 38px; }
  .stats-ribbon { padding: 2px 10px; }
  .live-price { font-size: 18px; }
  .range-hud { max-width: 145px; min-width: 105px; padding: 2px 5px; gap: 2px; }
  .range-hud-top { font-size: 9px; }
  .range-hud-bar { height: 3px; }
  .range-hud-pin { width: 6px; height: 6px; }
  .dock-actions {
    width: 100%;
    padding: 2px 4px 4px 4px;
    gap: 2px;
  }
  .dock-btn {
    flex: 1 1 0;
    height: 32px;
  }
  .dock-btn > span {
    display: none;
  }
  .dock-tf-badge {
    font-size: 10px;
    padding: 0 4px;
    line-height: 13px;
  }
  .dock-btn svg {
    width: 16px;
    height: 16px;
  }
}

/* Portrait Mobile Small-Screen Adjustments (<= 420px) */
@media (max-width: 420px) {
  .app-header {
    padding: 0 6px;
    gap: 4px;
  }
  .header-left {
    gap: 4px;
  }
  .symbol-pill-trigger {
    padding: 4px 7px;
    gap: 3px;
  }
  .symbol-pill-trigger .sym-name {
    font-size: 13px;
  }
  .symbol-pill-trigger .sym-tag {
    display: none;
  }
  .header-timer {
    padding: 3px 6px;
    gap: 3px;
  }
  .timer-text {
    font-size: 11px;
    min-width: 34px;
  }
  .header-right {
    gap: 4px;
  }
  .status-badge {
    padding: 3px 6px;
  }
  .status-badge span {
    display: none;
  }
  .icon-touch-btn {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }
}