/* ============================================================
   Quantra Terminal - Shared Design System
   Theme: Obsidian Premium — modern fintech dark
   Density: Balanced (B)
   ============================================================ */

/* --- Design Tokens --- */
:root {
  /* Backgrounds */
  --bg:            #09090b;
  --surface:       #18181b;
  --surface-alt:   #1c1c20;
  --surface-hover: #27272a;
  --surface-active:#2e2e33;
  --bg-elevated:   #27272a;

  /* Borders */
  --border:        #2e2e35;
  --border-light:  #3f3f46;
  --border-focus:  #3b82f6;

  /* Text */
  --text:          #e4e4e7;
  --text-dim:      #71717a;
  --text-vdim:     #52525b;
  --text-bright:   #fafafa;

  /* Accent */
  --blue:          #3b82f6;
  --blue-soft:     rgba(59,130,246,0.12);
  --blue-hover:    #2563eb;

  /* Semantic Colors */
  --green:         #10b981;
  --green-soft:    rgba(16,185,129,0.12);
  --green-text:    #34d399;
  --red:           #ef4444;
  --red-soft:      rgba(239,68,68,0.12);
  --red-text:      #f87171;
  --gold:          #f59e0b;
  --gold-soft:     rgba(245,158,11,0.1);
  --orange:        #f97316;
  --orange-soft:   rgba(249,115,22,0.1);
  --purple:        #a855f7;
  --purple-soft:   rgba(168,85,247,0.1);
  --cyan:          #06b6d4;
  --cyan-soft:     rgba(6,182,212,0.1);
  --yellow:        #eab308;

  /* Layout */
  --nav-height:    48px;
  --radius-sm:     4px;
  --radius-md:     8px;
  --radius-lg:     12px;
  --radius-xl:     16px;
  --shadow-sm:     0 1px 4px rgba(0,0,0,0.6);
  --shadow-md:     0 4px 16px rgba(0,0,0,0.7);
  --shadow-lg:     0 8px 32px rgba(0,0,0,0.8);

  /* Typography */
  --font-sans:     'DM Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:     'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
  --fs-xs:         11px;
  --fs-sm:         12px;
  --fs-base:       13px;
  --fs-md:         14px;
  --fs-lg:         16px;
  --fs-xl:         20px;
  --fs-2xl:        24px;
  --fs-3xl:        32px;
  --fw-normal:     400;
  --fw-medium:     500;
  --fw-semibold:   600;
  --fw-bold:       700;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: var(--fs-base);
  line-height: 1.5;
  min-height: 100vh;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; border-radius: 4px; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-vdim); }

/* ============================================================
   NAVIGATION BAR
   ============================================================ */
.q-nav {
  display: flex;
  align-items: center;
  height: var(--nav-height);
  background: linear-gradient(180deg, var(--surface-alt) 0%, var(--surface) 100%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(59,130,246,0.08);
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  flex-shrink: 0;
  gap: 16px;
}
.q-nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
  color: var(--text-bright);
  letter-spacing: 0.5px;
  white-space: nowrap;
  text-decoration: none;
}
.q-nav-brand:hover { text-decoration: none; }

.q-nav-brand .brand-icon {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--blue), #6366f1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
}
.q-nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.q-nav-links a {
  padding: 5px 13px;
  border-radius: 999px;
  color: var(--text-dim);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: all 0.15s ease;
  white-space: nowrap;
  text-decoration: none;
}
.q-nav-links a:hover {
  color: var(--text);
  background: var(--surface-hover);
  text-decoration: none;
}
.q-nav-links a.active {
  color: var(--text-bright);
  background: var(--blue-soft);
  box-shadow: 0 0 0 1px rgba(59,130,246,0.25), 0 0 12px rgba(59,130,246,0.1);
}
.q-nav-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-xs);
  color: var(--text-dim);
  white-space: nowrap;
  margin-left: auto;
  flex-shrink: 0;
}

/* Connection indicators */
.conn-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.conn-dot.on  { background: var(--green); box-shadow: 0 0 6px rgba(16,185,129,0.5); }
.conn-dot.off { background: var(--red); }
.conn-dot.reconn { background: var(--orange); }

.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: q-pulse 2s infinite;
  flex-shrink: 0;
}
.pulse-dot.off  { background: var(--red); animation: none; }
.pulse-dot.warn { background: var(--orange); animation: q-pulse 1s infinite; }

@keyframes q-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50%      { opacity: 0.7; box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

/* ============================================================
   COMMON COMPONENTS
   ============================================================ */

/* --- Cards --- */
.q-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.q-card:hover {
  border-color: var(--border-light);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.03), var(--shadow-sm);
}
.q-card-header {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text-bright);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- Stat Cards (summary bars) --- */
.q-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}
.q-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  transition: border-color 0.15s;
}
.q-stat-card:hover { border-color: var(--border-light); }
.q-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.q-stat-value {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--text-bright);
  line-height: 1.2;
}
.q-stat-sub {
  font-size: var(--fs-xs);
  color: var(--text-dim);
  margin-top: 2px;
}

/* --- Buttons --- */
.q-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  white-space: nowrap;
  font-family: inherit;
}
.q-btn-primary {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
  box-shadow: 0 1px 8px rgba(59,130,246,0.35);
}
.q-btn-primary:hover {
  background: var(--blue-hover);
  box-shadow: 0 2px 12px rgba(59,130,246,0.45);
}
.q-btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border);
}
.q-btn-ghost:hover { color: var(--text); border-color: var(--border-light); }
.q-btn-ghost.active { color: var(--blue); border-color: var(--blue); background: var(--blue-soft); }
.q-btn-sm { padding: 4px 10px; font-size: var(--fs-xs); }
.q-btn-danger { background: var(--red); color: #fff; border-color: var(--red); }
.q-btn-danger:hover { background: #dc2626; }
.q-btn-success { background: var(--green); color: #fff; border-color: var(--green); }
.q-btn-success:hover { background: #059669; }

/* --- Inputs --- */
.q-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 7px 10px;
  color: var(--text);
  font-size: var(--fs-sm);
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.q-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}
.q-input::placeholder { color: var(--text-vdim); }

.q-select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  color: var(--text);
  font-size: var(--fs-sm);
  font-family: inherit;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.q-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}

/* --- Tables --- */
.q-table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.q-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}
.q-table thead th {
  position: sticky;
  top: 0;
  background: linear-gradient(180deg, var(--bg-elevated) 0%, rgba(39,39,42,0.92) 100%);
  color: var(--text-dim);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  backdrop-filter: blur(4px);
}
.q-table thead th:hover { color: var(--text); }
.q-table thead th.sorted { color: var(--blue); }
.q-table tbody tr {
  border-bottom: 1px solid rgba(46,46,53,0.6);
  transition: background 0.1s;
}
.q-table tbody tr:hover { background: rgba(39,39,42,0.6); }
.q-table tbody td {
  padding: 7px 10px;
  white-space: nowrap;
  vertical-align: middle;
}

/* --- Badges / Pills --- */
.q-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  line-height: 1.4;
}
.q-badge-green  { background: var(--green-soft); color: var(--green-text); }
.q-badge-red    { background: var(--red-soft); color: var(--red-text); }
.q-badge-blue   { background: var(--blue-soft); color: var(--blue); }
.q-badge-gold   { background: var(--gold-soft); color: var(--gold); }
.q-badge-orange { background: var(--orange-soft); color: var(--orange); }
.q-badge-purple { background: var(--purple-soft); color: var(--purple); }
.q-badge-cyan   { background: var(--cyan-soft); color: var(--cyan); }
.q-badge-dim    { background: rgba(113,113,122,0.1); color: var(--text-dim); }

/* --- Toast --- */
.q-toast {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 9999;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-bright);
  background: var(--surface);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-20px);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}
.q-toast.show { transform: translateY(0); opacity: 1; pointer-events: auto; }
.q-toast.success { border-left: 3px solid var(--green); }
.q-toast.error   { border-left: 3px solid var(--red); }
.q-toast.warning { border-left: 3px solid var(--orange); }
.q-toast.info    { border-left: 3px solid var(--blue); }

/* --- Loading Overlay --- */
.q-loading-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--bg) 0%, #0d0d10 50%, var(--bg) 100%);
  z-index: 9998;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  transition: opacity 0.4s ease;
}
.q-loading-overlay.hide {
  opacity: 0;
  pointer-events: none;
  display: none;
}
.q-spinner {
  width: 40px; height: 40px;
  border: 2px solid var(--border-light);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: q-spin 0.75s linear infinite;
  box-shadow: 0 0 16px rgba(59,130,246,0.2);
}
@keyframes q-spin { to { transform: rotate(360deg); } }
.q-loading-text {
  font-size: var(--fs-sm);
  color: var(--text-dim);
  letter-spacing: 0.3px;
}

/* --- Modal / Overlay --- */
.q-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
}
.q-modal-overlay.open { display: flex; }
.q-modal {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 24px;
  max-width: 480px;
  width: 90%;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,0.04) inset;
}
.q-modal-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--text-bright);
  margin-bottom: 12px;
}

/* --- Footer --- */
.q-footer {
  height: 28px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-size: var(--fs-xs);
  color: var(--text-vdim);
  flex-shrink: 0;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-green  { color: var(--green) !important; }
.text-red    { color: var(--red) !important; }
.text-blue   { color: var(--blue) !important; }
.text-gold   { color: var(--gold) !important; }
.text-orange { color: var(--orange) !important; }
.text-purple { color: var(--purple) !important; }
.text-cyan   { color: var(--cyan) !important; }
.text-dim    { color: var(--text-dim) !important; }
.text-vdim   { color: var(--text-vdim) !important; }
.text-bright { color: var(--text-bright) !important; }

.bg-green-soft  { background: var(--green-soft) !important; }
.bg-red-soft    { background: var(--red-soft) !important; }

.fw-medium   { font-weight: var(--fw-medium) !important; }
.fw-semibold { font-weight: var(--fw-semibold) !important; }
.fw-bold     { font-weight: var(--fw-bold) !important; }

.fs-xs  { font-size: var(--fs-xs) !important; }
.fs-sm  { font-size: var(--fs-sm) !important; }
.fs-md  { font-size: var(--fs-md) !important; }
.fs-lg  { font-size: var(--fs-lg) !important; }
.fs-xl  { font-size: var(--fs-xl) !important; }

.mono { font-family: var(--font-mono) !important; }

.hidden { display: none !important; }

/* Positive / Negative value coloring */
.val-pos { color: var(--green-text); }
.val-neg { color: var(--red-text); }
.val-zero { color: var(--text-dim); }

/* Flash animations for live price updates */
@keyframes q-flash-green { 0% { background: var(--green-soft); } 100% { background: transparent; } }
@keyframes q-flash-red   { 0% { background: var(--red-soft); } 100% { background: transparent; } }
.flash-up   { animation: q-flash-green 0.6s ease-out; }
.flash-down { animation: q-flash-red 0.6s ease-out; }

/* --- Tabs --- */
.q-tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.q-tab {
  padding: 8px 16px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: inherit;
}
.q-tab:hover { color: var(--text); }
.q-tab.active { color: var(--blue); border-bottom-color: var(--blue); }
.q-tab .count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--blue-soft);
  border-radius: 9px;
  font-size: 10px;
  font-weight: var(--fw-bold);
  margin-left: 6px;
  color: var(--blue);
}

/* --- Toggle Switch --- */
.q-toggle {
  position: relative;
  width: 36px;
  height: 20px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--border-light);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s;
  border: none;
  outline: none;
}
.q-toggle::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.q-toggle:checked { background: var(--blue); }
.q-toggle:checked::before { transform: translateX(16px); }

/* --- Progress bar --- */
.q-progress {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.q-progress-fill {
  height: 100%;
  background: var(--blue);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .q-nav { padding: 0 10px; gap: 8px; }
  .q-nav-links a { padding: 5px 9px; font-size: var(--fs-xs); }
  .q-stats-row { grid-template-columns: repeat(2, 1fr); }
}