/* ============================================================================
   NordPortfolioPilot — application theme
   ----------------------------------------------------------------------------
   A design-token layer on top of Bootstrap 5.3. Everything here drives the
   global look (color, type, surfaces, controls). Component-specific rules for
   the instrument details page live further down. Because most of this overrides
   Bootstrap's own CSS custom properties, it cascades to every page with no
   markup changes.
   ========================================================================== */

/* ── Design tokens ───────────────────────────────────────────────────────── */
:root {
  /* Brand & accent */
  --npp-primary: #2563eb;        /* azure 600 — confident, accessible */
  --npp-primary-rgb: 37, 99, 235;
  --npp-primary-hover: #1d4ed8;
  --npp-primary-active: #1e40af;
  --npp-accent: #0ea5e9;         /* sky — used sparingly for highlights */

  /* Ink & neutrals (slate ramp) */
  --npp-ink: #0f172a;            /* headings */
  --npp-body: #1e293b;           /* body text */
  --npp-muted: #64748b;          /* secondary text */
  --npp-border: #e2e8f0;
  --npp-border-strong: #cbd5e1;

  /* Surfaces */
  --npp-canvas: #f5f7fb;         /* page background */
  --npp-surface: #ffffff;        /* cards, navbar, menus */
  --npp-surface-2: #f8fafc;      /* subtle inset / table headers */

  /* Status (kept close to Bootstrap so semantics read the same) */
  --npp-success: #15803d;
  --npp-danger: #dc2626;
  --npp-warning: #d97706;

  /* Elevation — layered, soft, finance-grade */
  --npp-shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 1px rgba(15, 23, 42, .04);
  --npp-shadow:    0 1px 3px rgba(15, 23, 42, .08), 0 4px 12px rgba(15, 23, 42, .06);
  --npp-shadow-lg: 0 8px 24px rgba(15, 23, 42, .10), 0 2px 6px rgba(15, 23, 42, .06);

  --npp-radius: .625rem;
  --npp-radius-lg: .875rem;

  /* Bootstrap variable overrides — the cascade does the rest */
  --bs-primary: var(--npp-primary);
  --bs-primary-rgb: var(--npp-primary-rgb);
  --bs-link-color: var(--npp-primary);
  --bs-link-color-rgb: var(--npp-primary-rgb);
  --bs-link-hover-color: var(--npp-primary-hover);
  --bs-body-color: var(--npp-body);
  --bs-body-bg: var(--npp-canvas);
  --bs-secondary-color: var(--npp-muted);
  --bs-border-color: var(--npp-border);
  --bs-border-radius: var(--npp-radius);
  --bs-border-radius-sm: .4rem;
  --bs-border-radius-lg: var(--npp-radius-lg);
  --bs-emphasis-color: var(--npp-ink);
  --bs-body-font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji";
}

/* ── Base ────────────────────────────────────────────────────────────────── */
html {
  font-size: 15px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  background-color: var(--npp-canvas);
  color: var(--npp-body);
  font-family: var(--bs-body-font-family);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.003em;
}

/* Typographic hierarchy — heavier, tighter headings give pages a spine. */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  color: var(--npp-ink);
  font-weight: 650;
  letter-spacing: -0.018em;
}

.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 750;
  letter-spacing: -0.03em;
}

.lead {
  color: var(--npp-muted);
  font-weight: 400;
}

code {
  color: inherit;
}

/* Visible, on-brand focus ring across interactive controls. */
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus,
.form-control:focus, .form-select:focus, .form-check-input:focus {
  box-shadow: 0 0 0 .2rem rgba(var(--npp-primary-rgb), .35);
  border-color: var(--npp-primary);
}

::selection {
  background: rgba(var(--npp-primary-rgb), .18);
}

/* ── Navbar ──────────────────────────────────────────────────────────────── */
.navbar {
  background-color: rgba(255, 255, 255, .85);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--npp-border);
  box-shadow: var(--npp-shadow-sm);
}

.navbar-brand {
  font-weight: 750;
  letter-spacing: -0.02em;
  color: var(--npp-ink);
  font-size: 1.2rem;
}

.navbar-brand:hover {
  color: var(--npp-primary);
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--npp-muted) !important;
  border-radius: var(--bs-border-radius-sm);
  padding-inline: .75rem;
  transition: color .15s ease, background-color .15s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--npp-ink) !important;
  background-color: rgba(var(--npp-primary-rgb), .07);
}

.navbar-nav .nav-link.active {
  color: var(--npp-primary) !important;
  background-color: rgba(var(--npp-primary-rgb), .10);
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  font-weight: 550;
  border-radius: var(--bs-border-radius-sm);
  transition: transform .04s ease, box-shadow .15s ease, background-color .15s ease, border-color .15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--npp-primary);
  --bs-btn-border-color: var(--npp-primary);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--npp-primary-hover);
  --bs-btn-hover-border-color: var(--npp-primary-hover);
  --bs-btn-active-bg: var(--npp-primary-active);
  --bs-btn-active-border-color: var(--npp-primary-active);
  box-shadow: 0 1px 2px rgba(var(--npp-primary-rgb), .35);
}

.btn-primary:hover {
  box-shadow: 0 4px 12px rgba(var(--npp-primary-rgb), .35);
}

.btn-outline-primary {
  --bs-btn-color: var(--npp-primary);
  --bs-btn-border-color: var(--npp-border-strong);
  --bs-btn-hover-bg: var(--npp-primary);
  --bs-btn-hover-border-color: var(--npp-primary);
}

.btn-outline-secondary {
  --bs-btn-color: var(--npp-body);
  --bs-btn-border-color: var(--npp-border-strong);
  --bs-btn-hover-color: var(--npp-ink);
  --bs-btn-hover-bg: var(--npp-surface-2);
  --bs-btn-hover-border-color: var(--npp-border-strong);
}

/* ── Cards & surfaces ────────────────────────────────────────────────────── */
.card {
  --bs-card-border-color: var(--npp-border);
  --bs-card-bg: var(--npp-surface);
  border-radius: var(--npp-radius-lg);
  box-shadow: var(--npp-shadow-sm);
  transition: box-shadow .18s ease, transform .18s ease;
}

/* Shadow-utility cards become the elevated, slightly-lifting surface. */
.card.shadow-sm {
  box-shadow: var(--npp-shadow) !important;
}

.card.shadow-sm:hover {
  box-shadow: var(--npp-shadow-lg) !important;
}

.card-header {
  background-color: transparent;
  border-bottom-color: var(--npp-border);
  font-weight: 600;
  color: var(--npp-ink);
}

/* ── Tables ──────────────────────────────────────────────────────────────── */
.table {
  --bs-table-bg: transparent;
  --bs-table-border-color: var(--npp-border);
  --bs-table-striped-bg: rgba(15, 23, 42, .025);
  --bs-table-hover-bg: rgba(var(--npp-primary-rgb), .055);
  margin-bottom: 0;
}

.table > thead {
  border-bottom: 2px solid var(--npp-border);
}

.table > thead th {
  font-size: .72rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: .045em;
  color: var(--npp-muted);
  padding-top: .85rem;
  padding-bottom: .85rem;
  background-color: var(--npp-surface-2);
}

.table > tbody td {
  padding-top: .7rem;
  padding-bottom: .7rem;
  vertical-align: middle;
}

/* Tables read best on their own surface; wrap heavy tables in a .card to frame. */
.table-striped > tbody > tr:nth-of-type(odd) > * {
  --bs-table-accent-bg: var(--bs-table-striped-bg);
}

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-control, .form-select {
  border-color: var(--npp-border-strong);
  border-radius: var(--bs-border-radius-sm);
}

.form-control::placeholder {
  color: #94a3b8;
}

.form-label {
  font-weight: 550;
  color: var(--npp-ink);
  margin-bottom: .35rem;
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* ── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  font-weight: 600;
  letter-spacing: .01em;
  padding: .4em .65em;
  border-radius: 2rem;
}

/* ── Alerts ──────────────────────────────────────────────────────────────── */
.alert {
  border: 1px solid transparent;
  border-radius: var(--bs-border-radius);
  box-shadow: var(--npp-shadow-sm);
}

/* ── Dropdowns ───────────────────────────────────────────────────────────── */
.dropdown-menu {
  border-color: var(--npp-border);
  border-radius: var(--bs-border-radius);
  box-shadow: var(--npp-shadow-lg);
  padding: .35rem;
}

.dropdown-item {
  border-radius: var(--bs-border-radius-sm);
  padding: .45rem .75rem;
}

.dropdown-item:active {
  background-color: var(--npp-primary);
}

/* ── Breadcrumb ──────────────────────────────────────────────────────────── */
.breadcrumb {
  font-size: .875rem;
  margin-bottom: 0;
}

.breadcrumb-item.active {
  color: var(--npp-ink);
  font-weight: 550;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  color: var(--npp-muted);
}

/* ── User avatar (navbar account) ────────────────────────────────────────── */
.user-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--npp-primary) 0%, var(--npp-accent) 100%);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  user-select: none;
  box-shadow: 0 1px 2px rgba(var(--npp-primary-rgb), .4);
  transition: filter 0.15s ease-in-out, transform .15s ease;
}

.user-avatar:hover {
  filter: brightness(1.04);
  transform: translateY(-1px);
}

.navbar-nav .dropdown-menu .dropdown-item form {
  margin: 0;
}

/* ── Auth (login) split layout ───────────────────────────────────────── */
/* The login page frames the form next to a branded hero panel. The hero is
   md-and-up only; on phones the card collapses to just the form pane. */
.npp-auth-card {
  border: 1px solid var(--npp-border);
}

.npp-auth-hero {
  position: relative;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.75rem;
  color: #fff;
  background: linear-gradient(150deg,
    var(--npp-primary-active) 0%,
    var(--npp-primary) 48%,
    var(--npp-accent) 100%);
  overflow: hidden;
}

.npp-auth-hero-content {
  position: relative;
  z-index: 1;
}

.npp-auth-brand {
  font-size: 1.6rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.npp-auth-tagline {
  font-size: 1.05rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, .92);
  margin-bottom: 1.75rem;
}

.npp-auth-points {
  display: grid;
  gap: .65rem;
  margin: 0;
}

.npp-auth-points li {
  position: relative;
  padding-left: 1.65rem;
  font-weight: 500;
  color: rgba(255, 255, 255, .95);
}

.npp-auth-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: .12em;
  border-radius: 50%;
  background: rgba(255, 255, 255, .2);
  font-size: .7rem;
  font-weight: 700;
  line-height: 1;
}

/* Stylised upward area chart anchored to the bottom of the hero. */
.npp-auth-hero-art {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 9rem;
  z-index: 0;
}

.npp-auth-form-pane {
  padding: 2.75rem;
}

@media (max-width: 575.98px) {
  .npp-auth-form-pane {
    padding: 1.85rem 1.5rem;
  }
}

/* ── Instrument details page ─────────────────────────────────────────── */

/* Sticky in-page section nav. The main navbar scrolls away, so this docks
   to the top once the hero passes. */
.npp-subnav {
  background-color: var(--npp-surface);
  border-bottom: 1px solid var(--bs-border-color);
  z-index: 1019;
}

.npp-subnav-nav {
  gap: 0.25rem;
  margin-bottom: 0;
  white-space: nowrap;
}

.npp-subnav-nav .nav-link {
  padding: 0.6rem 0.85rem;
  color: var(--bs-secondary-color);
  border-bottom: 2px solid transparent;
  border-radius: 0;
}

.npp-subnav-nav .nav-link:hover {
  color: var(--bs-primary);
}

.npp-subnav-nav .nav-link.active {
  color: var(--bs-primary);
  border-bottom-color: var(--bs-primary);
  font-weight: 600;
  background-color: transparent;
}

/* Anchored sections clear the sticky nav when jumped to. */
.npp-section {
  scroll-margin-top: 4.5rem;
}

.npp-hero-symbol {
  letter-spacing: -0.02em;
}

.npp-metric-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--bs-secondary-color);
  margin-bottom: 0.15rem;
}

.npp-metric-value {
  font-size: 1.4rem;
  font-weight: 650;
  line-height: 1.2;
  color: var(--npp-ink);
  font-variant-numeric: tabular-nums;
}

.npp-metric-sub {
  font-size: 0.75rem;
  color: var(--bs-secondary-color);
  margin-top: 0.1rem;
}

/* Home activity feed (M19-07) and attention panel (M19-06): .list-group-bg
   resolves to --bs-body-bg, which we tint as the page canvas — without this
   override, list items inside a white card pick up that tint instead of
   blending into the card. */
#home-activity-feed .list-group-item,
#home-attention-panel .list-group-item {
  background-color: transparent;
  transition: background-color 0.12s ease-in-out;
}

#home-activity-feed .list-group-item:hover,
#home-attention-panel .list-group-item:hover {
  background-color: var(--npp-surface-2);
}

/* Let a flex child shrink below its content width so long names ellipsis-truncate
   instead of shoving the trailing amount off the row. */
.min-w-0 {
  min-width: 0;
}

/* Lining/tabular figures so stacked amounts line up digit-for-digit. */
.npp-tnum {
  font-variant-numeric: tabular-nums;
}

/* Bootstrap's .table-responsive uses overflow-x:auto, which the spec promotes to
   overflow-y:auto as well — so a row-action dropdown opened inside the table gets
   clipped to the table's box (and in a short, one-row table the menu is trapped behind
   an inner scrollbar). While a menu is open, let the container spill so the menu shows
   in full; horizontal scrolling resumes once it closes. */
.table-responsive:has(.dropdown-menu.show) {
  overflow: visible;
}