/* ═════════════════════════════════════════════════════════════
   Kawosh Discovery Engine — Unified theme
   Layered on top of Bootstrap 5. Overrides visual tokens only,
   preserves layout classes (row/col/d-flex/etc.)
   ═════════════════════════════════════════════════════════════ */

:root {
  --bg:            #050810;
  --bg-soft:       #0a0f1a;
  --bg-elev:       #0e1424;
  --bg-hover:      #131b30;

  --text:          #ffffff;
  --text-dim:      #8a9bb5;
  --text-muted:    #4a5668;

  --cyan:          #4ea1ff;
  --cyan-bright:   #6ee7ff;
  --cyan-glow:     rgba(78, 161, 255, 0.35);
  --violet:        #a78bfa;
  --danger:        #ff5555;
  --warning:       #f59e0b;
  --success:       #22c55e;

  --border:        rgba(255, 255, 255, 0.06);
  --border-strong: rgba(78, 161, 255, 0.28);

  --radius:        12px;
  --radius-sm:     8px;
  --radius-lg:     16px;

  --ease:          cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);

  --max-w:         1400px;
  --nav-h:         68px;
}

*, *::before, *::after { box-sizing: border-box; }

/* ── Base ─────────────────────────────────────────────── */

html, body {
  background: var(--bg) !important;
  color: var(--text) !important;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif !important;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

body.bg-dark { background: var(--bg) !important; }
.text-light, body.text-light { color: var(--text) !important; }

a { color: var(--cyan); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: var(--cyan-bright); }

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-weight: 300;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }
h5 { font-size: 0.95rem; letter-spacing: 0.02em; }

small, .small, .text-secondary, .text-muted {
  color: var(--text-dim) !important;
}
.text-info { color: var(--cyan) !important; }
.text-accent { color: var(--cyan); }

hr { border-color: var(--border); opacity: 1; }

::selection { background: var(--cyan-glow); color: var(--text); }

/* ── Nav ──────────────────────────────────────────────── */

.app-nav {
  position: sticky; top: 0; z-index: 1030;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 32px;
  background: rgba(5, 8, 16, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.app-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: var(--max-w); margin: 0 auto; gap: 32px;
}

.app-nav-logo {
  display: flex; align-items: baseline; gap: 12px;
  text-decoration: none; color: var(--text);
  font-size: 0.95rem; font-weight: 600;
  letter-spacing: 0.24em; white-space: nowrap;
}
.app-nav-logo .dot { color: var(--cyan); }
.app-nav-logo:hover { color: var(--text); }
.app-nav-logo .tag {
  font-size: 0.68rem; font-weight: 400;
  letter-spacing: 0.18em; color: var(--text-muted);
  padding-left: 4px;
}

.app-nav-links {
  display: flex; align-items: center; gap: 4px;
  flex: 1; justify-content: center;
}
.app-nav-links a {
  padding: 8px 14px;
  color: var(--text-dim);
  font-size: 0.85rem; letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: all 0.2s var(--ease);
  text-decoration: none;
}
.app-nav-links a:hover { color: var(--text); background: var(--bg-hover); }
.app-nav-links a.active { color: var(--cyan); }

.app-nav-user {
  display: flex; align-items: center; gap: 8px;
  white-space: nowrap;
}

.user-chip {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text-dim);
  border-radius: 999px;
  font-size: 0.82rem; letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  font-family: inherit;
}
.user-chip:hover {
  border-color: var(--border-strong);
  color: var(--text);
}
.user-chip .avatar {
  width: 22px; height: 22px; border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; color: #050810; font-weight: 700;
  letter-spacing: 0;
}

.app-nav-user .btn-signin {
  padding: 8px 18px;
  background: var(--cyan); color: #050810;
  border: 1px solid var(--cyan);
  border-radius: var(--radius-sm);
  font-size: 0.82rem; font-weight: 500;
  letter-spacing: 0.04em; text-decoration: none;
  transition: all 0.2s var(--ease);
}
.app-nav-user .btn-signin:hover {
  box-shadow: 0 0 24px var(--cyan-glow);
  color: #050810;
}
.app-nav-user .btn-ghost {
  padding: 8px 16px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  font-size: 0.82rem; text-decoration: none;
  transition: all 0.2s var(--ease);
}
.app-nav-user .btn-ghost:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

/* Dropdown */
.dropdown-menu {
  background: var(--bg-elev) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  padding: 8px !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6) !important;
  min-width: 220px;
  margin-top: 8px !important;
}
.dropdown-item {
  color: var(--text-dim) !important;
  border-radius: var(--radius-sm);
  padding: 10px 14px !important;
  font-size: 0.85rem;
  transition: all 0.15s var(--ease);
}
.dropdown-item:hover, .dropdown-item:focus {
  background: var(--bg-hover) !important;
  color: var(--text) !important;
}
.dropdown-divider { border-color: var(--border) !important; margin: 6px 4px !important; }
.dropdown-item.text-danger { color: var(--danger) !important; }

/* ── Main layout ──────────────────────────────────────── */

.container, .container-fluid {
  max-width: var(--max-w) !important;
  padding: 32px 32px 80px !important;
}

.page-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px; gap: 24px; flex-wrap: wrap;
}

.breadcrumb {
  background: transparent !important;
  padding: 0 !important;
  margin: 0 !important;
  font-size: 0.82rem;
}
.breadcrumb-item, .breadcrumb-item a {
  color: var(--text-muted) !important;
}
.breadcrumb-item a:hover { color: var(--cyan) !important; }
.breadcrumb-item.active { color: var(--text-dim) !important; }
.breadcrumb-item + .breadcrumb-item::before { color: var(--text-muted) !important; }

/* ── Cards ────────────────────────────────────────────── */

.card {
  background: var(--bg-soft) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  color: var(--text);
  transition: all 0.3s var(--ease);
}
.card-header {
  background: transparent !important;
  border-bottom: 1px solid var(--border) !important;
  padding: 18px 22px !important;
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}
.card-body { padding: 22px !important; }
.card-footer {
  background: transparent !important;
  border-top: 1px solid var(--border) !important;
  padding: 16px 22px !important;
}
.card.hover-card:hover,
.hover-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* ── Buttons (Bootstrap overrides + new) ──────────────── */

.btn {
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  border-radius: var(--radius-sm) !important;
  padding: 9px 18px;
  transition: all 0.2s var(--ease);
  font-weight: 500;
}

.btn-primary, .btn-info {
  background: var(--cyan) !important;
  border-color: var(--cyan) !important;
  color: #050810 !important;
}
.btn-primary:hover, .btn-info:hover {
  background: var(--cyan-bright) !important;
  border-color: var(--cyan-bright) !important;
  box-shadow: 0 0 28px var(--cyan-glow);
  color: #050810 !important;
}

.btn-outline-primary, .btn-outline-info {
  color: var(--cyan) !important;
  border-color: var(--cyan) !important;
  background: transparent !important;
}
.btn-outline-primary:hover, .btn-outline-info:hover {
  background: var(--cyan) !important;
  color: #050810 !important;
  box-shadow: 0 0 24px var(--cyan-glow);
}

.btn-outline-secondary, .btn-secondary {
  color: var(--text-dim) !important;
  border-color: var(--border) !important;
  background: transparent !important;
}
.btn-outline-secondary:hover, .btn-secondary:hover {
  color: var(--text) !important;
  border-color: var(--border-strong) !important;
  background: var(--bg-hover) !important;
}

.btn-outline-danger, .btn-danger {
  color: var(--danger) !important;
  border-color: var(--danger) !important;
  background: transparent !important;
}
.btn-danger { background: var(--danger) !important; color: #fff !important; }
.btn-outline-danger:hover {
  background: var(--danger) !important; color: #fff !important;
}

.btn-link {
  color: var(--cyan) !important;
  text-decoration: none;
}
.btn-link:hover { color: var(--cyan-bright) !important; }

.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-lg { padding: 13px 26px; font-size: 0.92rem; }

/* ── Forms ────────────────────────────────────────────── */

.form-control, .form-select, textarea.form-control {
  background: var(--bg-soft) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  border-radius: var(--radius-sm) !important;
  padding: 11px 14px !important;
  font-family: inherit;
  font-size: 0.9rem;
  transition: all 0.2s var(--ease);
}
.form-control:focus, .form-select:focus {
  border-color: var(--cyan) !important;
  box-shadow: 0 0 0 3px var(--cyan-glow) !important;
  background: var(--bg-elev) !important;
  color: var(--text) !important;
}
.form-control::placeholder { color: var(--text-muted) !important; }
.form-label {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  font-weight: 500;
}
.form-text { color: var(--text-muted) !important; font-size: 0.78rem; }
.form-check-input {
  background-color: var(--bg-soft);
  border-color: var(--border);
}
.form-check-input:checked {
  background-color: var(--cyan);
  border-color: var(--cyan);
}
.form-check-label { color: var(--text-dim); font-size: 0.88rem; }

/* ── Alerts ───────────────────────────────────────────── */

.alert {
  background: var(--bg-soft) !important;
  border: 1px solid var(--border) !important;
  border-left: 3px solid var(--cyan) !important;
  border-radius: var(--radius-sm) !important;
  color: var(--text) !important;
  padding: 14px 18px !important;
  font-size: 0.88rem;
}
.alert-info    { border-left-color: var(--cyan)    !important; }
.alert-success { border-left-color: var(--success) !important; }
.alert-warning { border-left-color: var(--warning) !important; }
.alert-danger  { border-left-color: var(--danger)  !important; }
.alert-link { color: var(--cyan) !important; }

/* ── Badges ───────────────────────────────────────────── */

.badge {
  font-weight: 500;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
  padding: 5px 10px;
  border-radius: 999px;
}
.badge.bg-info {
  background: var(--cyan-glow) !important;
  color: var(--cyan) !important;
}
.badge.bg-primary {
  background: var(--cyan) !important;
  color: #050810 !important;
}
.badge.bg-success { background: rgba(34,197,94,0.15) !important; color: var(--success) !important; }
.badge.bg-warning { background: rgba(245,158,11,0.15) !important; color: var(--warning) !important; }
.badge.bg-danger  { background: rgba(255,85,85,0.15)  !important; color: var(--danger)  !important; }
.badge.bg-secondary { background: var(--bg-hover) !important; color: var(--text-dim) !important; }
.badge-neuro {
  background: var(--cyan-glow) !important;
  color: var(--cyan) !important;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

/* ── Tables ───────────────────────────────────────────── */

.table {
  color: var(--text) !important;
  font-size: 0.88rem;
  border-color: var(--border) !important;
}
.table > :not(caption) > * > * {
  background: transparent !important;
  border-color: var(--border) !important;
  padding: 12px 14px !important;
}
.table thead th {
  color: var(--text-dim) !important;
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border) !important;
}
.table tbody tr { transition: background 0.15s var(--ease); }
.table tbody tr:hover { background: var(--bg-hover) !important; }
.table-striped > tbody > tr:nth-of-type(odd) > * {
  background: rgba(255, 255, 255, 0.015) !important;
}

/* ── Modal ────────────────────────────────────────────── */

.modal-content {
  background: var(--bg-elev) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  color: var(--text) !important;
}
.modal-header, .modal-footer { border-color: var(--border) !important; }
.modal-title { font-weight: 300; letter-spacing: -0.01em; }
.btn-close-white { filter: invert(1) brightness(1.4); }

/* ── Plot containers ──────────────────────────────────── */

.plot-container, .plotly-graph-div {
  background: var(--bg-soft) !important;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}

/* ── Help floating button ─────────────────────────────── */

#global-help-btn {
  background: var(--cyan) !important;
  color: #050810 !important;
  border: 1px solid var(--cyan) !important;
  box-shadow: 0 8px 32px var(--cyan-glow);
  font-weight: 500;
}
#global-help-btn:hover {
  box-shadow: 0 8px 40px var(--cyan-glow), 0 0 60px var(--cyan-glow);
  transform: translateY(-2px);
}

/* ── Footer ───────────────────────────────────────────── */

.app-footer {
  border-top: 1px solid var(--border);
  padding: 28px 32px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  margin-top: 60px;
}

/* ── Pre / code ───────────────────────────────────────── */

pre, code {
  background: var(--bg-soft);
  color: var(--cyan-bright);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
pre { padding: 14px 16px; font-size: 0.82rem; overflow-x: auto; }
code { padding: 2px 6px; font-size: 0.85em; }

pre#log-output {
  background: var(--bg-soft);
  color: var(--cyan-bright);
  border: 1px solid var(--border);
}

/* ── Progress bars ────────────────────────────────────── */

.progress {
  background: var(--bg-soft);
  height: 22px;
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  background: linear-gradient(90deg, var(--cyan), var(--cyan-bright));
  color: #050810;
  font-weight: 500;
}

/* ── List groups ──────────────────────────────────────── */

.list-group-item {
  background: var(--bg-soft) !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
  padding: 14px 18px;
}
.list-group-item:hover { background: var(--bg-hover) !important; }

/* ── Scrollbar ────────────────────────────────────────── */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 5px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: #1f2a44; }

/* ── Responsive ───────────────────────────────────────── */

@media (max-width: 900px) {
  .app-nav { padding: 0 16px; }
  .app-nav-links { display: none; }
  .app-nav-logo .tag { display: none; }
  .container, .container-fluid { padding: 20px 16px 60px !important; }
  .page-head { flex-direction: column; align-items: flex-start; }
}

/* ── Structural QC — chart container safety net ── */
.sqc-chart > div[id^="chart-"] {
  min-height: 320px;
  width: 100%;
  display: block;
}
.sqc-chart .plot-container,
.sqc-chart .plotly {
  background: transparent !important;
}