/*
 * VELYX theme for Bootstrap 5.3
 * ============================================================
 * Maps the VELYX brand tokens (velyx-brand.css) onto Bootstrap's
 * CSS variables and re-skins the components whose colours Bootstrap
 * ships compiled in.
 *
 * Load order (see Pages/Shared/_Layout.cshtml):
 *   1. lib/bootstrap/dist/css/bootstrap.min.css
 *   2. css/velyx-brand.css      brand tokens + velyx-* components (source: docs/design)
 *   3. css/velyx-bootstrap.css  this file
 *   4. css/velyx-theme.css      approved light theme (docs/design/Main.dc.html)
 *   5. css/site.css             page-specific layout only
 *
 * Rules:
 * - Reference brand tokens (var(--velyx-*), var(--color-*)), never new hex values.
 *   Exceptions, all written-out brand values: Bootstrap's *-rgb triplets and SVG
 *   data URIs (they cannot use var()), and the dark-surface colours that
 *   velyx-brand.css only defines inside its prefers-color-scheme block.
 * - Mineral Teal is never used for text on light surfaces.
 * - Colour mapping:
 *     primary   = VELYX Midnight      (authority; primary buttons, active states)
 *     secondary = Graphite            (neutral)
 *     info      = Intelligence Blue   (functional info)
 *     success / warning / danger = functional state tokens
 *     light     = Architectural White
 *     dark      = VELYX Midnight
 *   Extra brand variants: .btn-technology, .btn-outline-technology, .btn-accent.
 *   Form controls, focus and links use Intelligence Blue (interaction).
 * - The site is light-only (velyx-theme.css pins the light tokens). Dark
 *   surfaces are opt-in per element with data-bs-theme="dark" (section 12).
 */

/* ============================================================
   1. ROOT VARIABLES
   ============================================================ */

:root {
  /* Theme colours */
  --bs-primary: var(--velyx-midnight);
  --bs-secondary: var(--velyx-graphite);
  --bs-success: var(--color-success);
  --bs-info: var(--color-info);
  --bs-warning: var(--color-warning);
  --bs-danger: var(--color-error);
  --bs-light: var(--velyx-architectural-white);
  --bs-dark: var(--velyx-midnight);

  --bs-primary-rgb: 8, 27, 44;
  --bs-secondary-rgb: 53, 65, 77;
  --bs-success-rgb: 24, 121, 78;
  --bs-info-rgb: 40, 100, 220;
  --bs-warning-rgb: 154, 103, 0;
  --bs-danger-rgb: 180, 35, 24;
  --bs-light-rgb: 246, 248, 250;
  --bs-dark-rgb: 8, 27, 44;

  --bs-primary-text-emphasis: var(--velyx-midnight);
  --bs-secondary-text-emphasis: var(--velyx-neutral-800);
  --bs-success-text-emphasis: color-mix(in srgb, var(--color-success) 75%, var(--velyx-black));
  --bs-info-text-emphasis: var(--color-interactive-active);
  --bs-warning-text-emphasis: color-mix(in srgb, var(--color-warning) 75%, var(--velyx-black));
  --bs-danger-text-emphasis: color-mix(in srgb, var(--color-error) 75%, var(--velyx-black));
  --bs-light-text-emphasis: var(--velyx-graphite);
  --bs-dark-text-emphasis: var(--velyx-midnight);

  --bs-primary-bg-subtle: var(--velyx-neutral-100);
  --bs-secondary-bg-subtle: var(--velyx-neutral-50);
  --bs-success-bg-subtle: var(--color-success-background);
  --bs-info-bg-subtle: var(--color-info-background);
  --bs-warning-bg-subtle: var(--color-warning-background);
  --bs-danger-bg-subtle: var(--color-error-background);
  --bs-light-bg-subtle: var(--velyx-neutral-50);
  --bs-dark-bg-subtle: var(--velyx-neutral-300);

  --bs-primary-border-subtle: var(--velyx-architecture-mist);
  --bs-secondary-border-subtle: var(--velyx-neutral-200);
  --bs-success-border-subtle: color-mix(in srgb, var(--color-success) 30%, var(--velyx-white));
  --bs-info-border-subtle: color-mix(in srgb, var(--color-info) 30%, var(--velyx-white));
  --bs-warning-border-subtle: color-mix(in srgb, var(--color-warning) 35%, var(--velyx-white));
  --bs-danger-border-subtle: color-mix(in srgb, var(--color-error) 30%, var(--velyx-white));
  --bs-light-border-subtle: var(--velyx-neutral-200);
  --bs-dark-border-subtle: var(--velyx-neutral-400);

  /* Typography */
  --bs-font-sans-serif: var(--font-family-body);
  --bs-font-monospace: var(--font-family-monospace);
  --bs-body-font-family: var(--font-family-body);
  --bs-body-font-size: var(--font-size-base);
  --bs-body-font-weight: var(--font-weight-regular);
  --bs-body-line-height: var(--line-height-body);

  /* Body, text and surfaces */
  --bs-body-color: var(--color-text-secondary);
  --bs-body-color-rgb: 53, 65, 77;
  --bs-body-bg: var(--color-background);
  --bs-body-bg-rgb: 246, 248, 250;
  --bs-emphasis-color: var(--color-text);
  --bs-emphasis-color-rgb: 8, 27, 44;
  --bs-secondary-color: var(--color-text-muted);
  --bs-secondary-bg: var(--color-surface-subtle);
  --bs-tertiary-color: var(--color-text-muted);
  --bs-tertiary-bg: var(--velyx-neutral-50);
  --bs-heading-color: var(--color-text);

  /* Links */
  --bs-link-color: var(--color-text-link);
  --bs-link-color-rgb: 40, 100, 220;
  --bs-link-hover-color: var(--color-interactive-hover);
  --bs-link-hover-color-rgb: 31, 81, 187;
  --bs-code-color: var(--velyx-architectural-navy);
  --bs-highlight-color: var(--color-text);
  --bs-highlight-bg: var(--color-warning-background);

  /* Borders and shape */
  --bs-border-color: var(--color-border);
  --bs-border-color-translucent: rgb(8 27 44 / 12%);
  --bs-border-radius: var(--radius-sm);
  --bs-border-radius-sm: var(--radius-xs);
  --bs-border-radius-lg: var(--radius-md);
  --bs-border-radius-xl: var(--radius-lg);
  --bs-border-radius-xxl: var(--radius-xl);
  --bs-border-radius-pill: var(--radius-pill);

  /* Shadows and focus */
  --bs-box-shadow: var(--shadow-md);
  --bs-box-shadow-sm: var(--shadow-sm);
  --bs-box-shadow-lg: var(--shadow-lg);
  --bs-focus-ring-width: 3px;
  --bs-focus-ring-opacity: 0.8;
  --bs-focus-ring-color: rgb(40 100 220 / 80%);

  /* Form validation */
  --bs-form-valid-color: var(--color-success);
  --bs-form-valid-border-color: var(--color-success);
  --bs-form-invalid-color: var(--color-error);
  --bs-form-invalid-border-color: var(--color-error);
}

/* ============================================================
   2. LAYOUT
   ============================================================ */

/* Brand content width is 80rem; Bootstrap's widest container is 1320px. */
@media (min-width: 1400px) {
  .container,
  .container-sm,
  .container-md,
  .container-lg,
  .container-xl,
  .container-xxl {
    max-width: var(--content-max-width);
  }
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================
   Heading elements are styled by velyx-brand.css; these give the
   Bootstrap heading and display classes the same treatment. */

.h1,
.h2,
.h3,
.h4,
.h5,
.h6,
.display-1,
.display-2,
.display-3,
.display-4,
.display-5,
.display-6 {
  color: var(--color-text);
  font-family: var(--font-family-display);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-heading);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.h1 {
  font-size: clamp(2.5rem, 6vw, var(--font-size-5xl));
  line-height: var(--line-height-tight);
  letter-spacing: -0.045em;
}

.h2 {
  font-size: clamp(2rem, 4vw, var(--font-size-4xl));
  letter-spacing: -0.035em;
}

.h3 {
  font-size: clamp(1.5rem, 3vw, var(--font-size-2xl));
}

.h4 {
  font-size: var(--font-size-xl);
}

.h5 {
  font-size: var(--font-size-lg);
}

.h6 {
  font-size: var(--font-size-base);
  letter-spacing: 0;
}

.display-1,
.display-2,
.display-3,
.display-4,
.display-5,
.display-6 {
  line-height: var(--line-height-tight);
  letter-spacing: -0.045em;
}

.lead {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-regular);
}

/* Bootstrap's text-bg-* helpers hard-code black text for info and warning. */
.text-bg-info,
.text-bg-warning {
  color: var(--velyx-white) !important;
}

.text-bg-light {
  color: var(--velyx-midnight) !important;
}

.text-bg-primary,
.text-bg-dark {
  color: var(--velyx-architectural-white) !important;
}

/* ============================================================
   4. BUTTONS
   ============================================================ */

.btn {
  --bs-btn-padding-x: 1.2rem;
  --bs-btn-padding-y: 0.75rem;
  --bs-btn-font-family: var(--font-family-body);
  --bs-btn-font-size: var(--font-size-sm);
  --bs-btn-font-weight: var(--font-weight-semibold);
  --bs-btn-line-height: 1.25;
  --bs-btn-border-width: 2px;
  --bs-btn-border-radius: var(--radius-sm);
  --bs-btn-focus-box-shadow: var(--focus-ring);
  --bs-btn-disabled-opacity: 0.55;

  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast),
    translate var(--transition-fast);
}

.btn:not(.btn-link):hover {
  translate: 0 -1px;
}

.btn:not(.btn-link):is(:active, :disabled, .disabled) {
  translate: 0;
}

/* Size modifiers must follow the .btn rule above to keep their own values. */
.btn-lg {
  --bs-btn-padding-x: 1.5rem;
  --bs-btn-padding-y: 0.875rem;
  --bs-btn-font-size: var(--font-size-base);
  --bs-btn-border-radius: var(--radius-sm);
}

.btn-sm {
  --bs-btn-padding-x: 0.875rem;
  --bs-btn-padding-y: 0.5rem;
  --bs-btn-font-size: var(--font-size-sm);
  --bs-btn-border-radius: var(--radius-xs);
}

/* Solid variants: each sets --velyx-btn-* and this rule maps them to Bootstrap. */
:is(
  .btn-primary,
  .btn-secondary,
  .btn-success,
  .btn-info,
  .btn-warning,
  .btn-danger,
  .btn-light,
  .btn-dark,
  .btn-technology,
  .btn-accent
) {
  --bs-btn-color: var(--velyx-btn-fg);
  --bs-btn-bg: var(--velyx-btn-bg);
  --bs-btn-border-color: var(--velyx-btn-border, var(--velyx-btn-bg));
  --bs-btn-hover-color: var(--velyx-btn-fg);
  --bs-btn-hover-bg: var(--velyx-btn-hover-bg);
  --bs-btn-hover-border-color: var(--velyx-btn-hover-bg);
  --bs-btn-active-color: var(--velyx-btn-fg);
  --bs-btn-active-bg: var(--velyx-btn-active-bg);
  --bs-btn-active-border-color: var(--velyx-btn-active-bg);
  --bs-btn-disabled-color: var(--velyx-btn-fg);
  --bs-btn-disabled-bg: var(--velyx-btn-bg);
  --bs-btn-disabled-border-color: var(--velyx-btn-border, var(--velyx-btn-bg));
}

.btn-primary,
.btn-dark {
  --velyx-btn-fg: var(--velyx-architectural-white);
  --velyx-btn-bg: var(--velyx-midnight);
  --velyx-btn-hover-bg: var(--velyx-architectural-navy);
  --velyx-btn-active-bg: var(--velyx-architectural-navy);
}

.btn-secondary {
  --velyx-btn-fg: var(--velyx-white);
  --velyx-btn-bg: var(--velyx-graphite);
  --velyx-btn-hover-bg: var(--velyx-neutral-800);
  --velyx-btn-active-bg: var(--velyx-neutral-900);
}

.btn-technology,
.btn-info {
  --velyx-btn-fg: var(--velyx-white);
  --velyx-btn-bg: var(--color-interactive);
  --velyx-btn-hover-bg: var(--color-interactive-hover);
  --velyx-btn-active-bg: var(--color-interactive-active);
}

/* Teal surface with Midnight text: the only approved teal button. */
.btn-accent {
  --velyx-btn-fg: var(--velyx-midnight);
  --velyx-btn-bg: var(--velyx-mineral-teal);
  --velyx-btn-hover-bg: #18b7b4; /* as .velyx-button--accent-dark:hover */
  --velyx-btn-active-bg: color-mix(in srgb, var(--velyx-mineral-teal) 85%, var(--velyx-black));
}

.btn-success {
  --velyx-btn-fg: var(--velyx-white);
  --velyx-btn-bg: var(--color-success);
  --velyx-btn-hover-bg: color-mix(in srgb, var(--color-success) 85%, var(--velyx-black));
  --velyx-btn-active-bg: color-mix(in srgb, var(--color-success) 75%, var(--velyx-black));
}

/* White text: black on the brand warning colour is below 4.5:1. */
.btn-warning {
  --velyx-btn-fg: var(--velyx-white);
  --velyx-btn-bg: var(--color-warning);
  --velyx-btn-hover-bg: color-mix(in srgb, var(--color-warning) 85%, var(--velyx-black));
  --velyx-btn-active-bg: color-mix(in srgb, var(--color-warning) 75%, var(--velyx-black));
}

.btn-danger {
  --velyx-btn-fg: var(--velyx-white);
  --velyx-btn-bg: var(--color-error);
  --velyx-btn-hover-bg: color-mix(in srgb, var(--color-error) 85%, var(--velyx-black));
  --velyx-btn-active-bg: color-mix(in srgb, var(--color-error) 75%, var(--velyx-black));
}

.btn-light {
  --velyx-btn-fg: var(--velyx-midnight);
  --velyx-btn-bg: var(--velyx-architectural-white);
  --velyx-btn-border: var(--velyx-neutral-200);
  --velyx-btn-hover-bg: var(--velyx-neutral-100);
  --velyx-btn-active-bg: var(--velyx-neutral-200);
}

/* Outline variants: fill with --velyx-btn-outline-hover-bg on hover. */
:is(
  .btn-outline-primary,
  .btn-outline-secondary,
  .btn-outline-success,
  .btn-outline-info,
  .btn-outline-warning,
  .btn-outline-danger,
  .btn-outline-light,
  .btn-outline-dark,
  .btn-outline-technology
) {
  --bs-btn-color: var(--velyx-btn-outline-fg);
  --bs-btn-border-color: var(--velyx-btn-outline-border, var(--velyx-btn-outline-fg));
  --bs-btn-hover-color: var(--velyx-btn-outline-hover-fg);
  --bs-btn-hover-bg: var(--velyx-btn-outline-hover-bg, var(--velyx-btn-outline-fg));
  --bs-btn-hover-border-color: var(--velyx-btn-outline-hover-bg, var(--velyx-btn-outline-fg));
  --bs-btn-active-color: var(--velyx-btn-outline-hover-fg);
  --bs-btn-active-bg: var(--velyx-btn-outline-hover-bg, var(--velyx-btn-outline-fg));
  --bs-btn-active-border-color: var(--velyx-btn-outline-hover-bg, var(--velyx-btn-outline-fg));
  --bs-btn-disabled-color: var(--velyx-btn-outline-fg);
  --bs-btn-disabled-bg: transparent;
  --bs-btn-disabled-border-color: var(--velyx-btn-outline-border, var(--velyx-btn-outline-fg));
}

.btn-outline-primary,
.btn-outline-dark {
  --velyx-btn-outline-fg: var(--velyx-midnight);
  --velyx-btn-outline-hover-fg: var(--velyx-architectural-white);
}

.btn-outline-secondary {
  --velyx-btn-outline-fg: var(--velyx-graphite);
  --velyx-btn-outline-hover-fg: var(--velyx-white);
}

.btn-outline-technology,
.btn-outline-info {
  --velyx-btn-outline-fg: var(--color-interactive);
  --velyx-btn-outline-hover-fg: var(--velyx-white);
}

.btn-outline-success {
  --velyx-btn-outline-fg: var(--color-success);
  --velyx-btn-outline-hover-fg: var(--velyx-white);
}

.btn-outline-warning {
  --velyx-btn-outline-fg: var(--color-warning);
  --velyx-btn-outline-hover-fg: var(--velyx-white);
}

.btn-outline-danger {
  --velyx-btn-outline-fg: var(--color-error);
  --velyx-btn-outline-hover-fg: var(--velyx-white);
}

/* For dark surfaces (hero, Midnight and Navy sections). */
.btn-outline-light {
  --velyx-btn-outline-fg: var(--velyx-architectural-white);
  --velyx-btn-outline-hover-fg: var(--velyx-midnight);
}

.btn-link {
  --bs-btn-color: var(--color-text-link);
  --bs-btn-hover-color: var(--color-interactive-hover);
  --bs-btn-active-color: var(--color-interactive-active);
  --bs-btn-font-weight: var(--font-weight-semibold);
}

.btn-close {
  --bs-btn-close-focus-shadow: var(--focus-ring);
}

/* ============================================================
   5. FORMS
   ============================================================ */

.form-label,
.col-form-label {
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

/* Inputs use the strong border: the default border is below 3:1 against white. */
.form-control,
.form-select {
  min-height: 44px;
  border-color: var(--color-border-strong);
  background-color: var(--color-surface);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

textarea.form-control {
  min-height: 8rem;
}

.form-control:hover:not(:disabled, [readonly]),
.form-select:hover:not(:disabled) {
  border-color: var(--velyx-architectural-navy);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-interactive);
  background-color: var(--color-surface);
  outline: none;
  box-shadow: 0 0 0 3px rgb(40 100 220 / 18%);
}

.input-group-text {
  border-color: var(--color-border-strong);
}

.form-check-input {
  border-color: var(--color-border-strong);
}

.form-check-input:checked,
.form-check-input[type=checkbox]:indeterminate {
  border-color: var(--color-interactive);
  background-color: var(--color-interactive);
}

.form-check-input:focus {
  border-color: var(--color-interactive);
  box-shadow: 0 0 0 3px rgb(40 100 220 / 25%);
}

.form-switch .form-check-input:focus {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%2393b1ed'/%3e%3c/svg%3e");
}

.form-switch .form-check-input:checked {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
}

.form-range::-webkit-slider-thumb {
  background-color: var(--color-interactive);
}

.form-range::-webkit-slider-thumb:active {
  background-color: var(--velyx-architecture-mist);
}

.form-range::-moz-range-thumb {
  background-color: var(--color-interactive);
}

.form-range::-moz-range-thumb:active {
  background-color: var(--velyx-architecture-mist);
}

.form-range:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 1px var(--color-surface), 0 0 0 3px rgb(40 100 220 / 25%);
}

.form-range:focus::-moz-range-thumb {
  box-shadow: 0 0 0 1px var(--color-surface), 0 0 0 3px rgb(40 100 220 / 25%);
}

/* Validation icons recoloured to the brand success and error tokens. */
.was-validated .form-control:valid,
.form-control.is-valid {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2318794e' d='M2.3 6.73.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
}

.was-validated .form-control:invalid,
.form-control.is-invalid {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23b42318'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23b42318' stroke='none'/%3e%3c/svg%3e");
}

.was-validated .form-select:valid:not([multiple]):not([size]),
.was-validated .form-select:valid:not([multiple])[size="1"],
.form-select.is-valid:not([multiple]):not([size]),
.form-select.is-valid:not([multiple])[size="1"] {
  --bs-form-select-bg-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2318794e' d='M2.3 6.73.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
}

.was-validated .form-select:invalid:not([multiple]):not([size]),
.was-validated .form-select:invalid:not([multiple])[size="1"],
.form-select.is-invalid:not([multiple]):not([size]),
.form-select.is-invalid:not([multiple])[size="1"] {
  --bs-form-select-bg-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23b42318'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23b42318' stroke='none'/%3e%3c/svg%3e");
}

/* ============================================================
   6. NAVIGATION
   ============================================================ */

.nav {
  --bs-nav-link-color: var(--color-text-link);
  --bs-nav-link-hover-color: var(--color-interactive-hover);
  --bs-nav-link-font-weight: var(--font-weight-medium);
}

.nav-link:focus-visible {
  box-shadow: var(--focus-ring);
}

.nav-tabs {
  --bs-nav-tabs-border-color: var(--color-border);
  --bs-nav-tabs-link-hover-border-color: var(--color-border-subtle) var(--color-border-subtle) var(--color-border);
  --bs-nav-tabs-link-active-color: var(--color-text);
  --bs-nav-tabs-link-active-bg: var(--color-surface);
  --bs-nav-tabs-link-active-border-color: var(--color-border) var(--color-border) var(--color-surface);
}

.nav-pills {
  --bs-nav-pills-border-radius: var(--radius-sm);
  --bs-nav-pills-link-active-color: var(--velyx-architectural-white);
  --bs-nav-pills-link-active-bg: var(--color-brand);
}

/* Light navbar (default). */
.navbar {
  --bs-navbar-padding-y: var(--space-3);
  --bs-navbar-color: var(--color-text-secondary);
  --bs-navbar-hover-color: var(--color-text);
  --bs-navbar-active-color: var(--color-text);
  --bs-navbar-disabled-color: var(--color-interactive-disabled);
  --bs-navbar-brand-color: var(--color-text);
  --bs-navbar-brand-hover-color: var(--color-text);
  --bs-navbar-brand-font-size: var(--font-size-lg);
  --bs-navbar-toggler-border-color: var(--color-border);
  --bs-navbar-toggler-border-radius: var(--radius-sm);
  --bs-navbar-toggler-icon-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%288, 27, 44, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Midnight header from the brand guidelines: <nav class="navbar bg-dark" data-bs-theme="dark">.
   Teal on Midnight passes AA, so it marks hover and the current page. */
.navbar[data-bs-theme=dark],
.navbar-dark {
  --bs-navbar-color: rgb(246 248 250 / 85%);
  --bs-navbar-hover-color: var(--velyx-mineral-teal);
  --bs-navbar-active-color: var(--velyx-mineral-teal);
  --bs-navbar-brand-color: var(--velyx-architectural-white);
  --bs-navbar-brand-hover-color: var(--velyx-architectural-white);
  --bs-navbar-toggler-border-color: rgb(182 202 220 / 30%);
  --bs-navbar-toggler-icon-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28246, 248, 250, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");

  border-bottom: 1px solid rgb(182 202 220 / 20%);
}

.navbar-nav .nav-link {
  display: flex;
  min-height: 44px;
  align-items: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.navbar-toggler {
  min-width: 44px;
  min-height: 44px;
}

.navbar-toggler:focus {
  box-shadow: var(--focus-ring);
}

.dropdown-menu {
  --bs-dropdown-bg: var(--color-surface);
  --bs-dropdown-border-color: var(--color-border);
  --bs-dropdown-border-radius: var(--radius-md);
  --bs-dropdown-box-shadow: var(--shadow-md);
  --bs-dropdown-link-color: var(--color-text);
  --bs-dropdown-link-hover-color: var(--color-text);
  --bs-dropdown-link-hover-bg: var(--color-surface-subtle);
  --bs-dropdown-link-active-color: var(--velyx-architectural-white);
  --bs-dropdown-link-active-bg: var(--color-brand);
}

.pagination {
  --bs-pagination-color: var(--color-text-link);
  --bs-pagination-bg: var(--color-surface);
  --bs-pagination-border-color: var(--color-border);
  --bs-pagination-border-radius: var(--radius-sm);
  --bs-pagination-hover-color: var(--color-interactive-hover);
  --bs-pagination-hover-bg: var(--color-surface-subtle);
  --bs-pagination-focus-color: var(--color-interactive-hover);
  --bs-pagination-focus-bg: var(--color-surface-subtle);
  --bs-pagination-focus-box-shadow: var(--focus-ring);
  --bs-pagination-active-color: var(--velyx-architectural-white);
  --bs-pagination-active-bg: var(--color-brand);
  --bs-pagination-active-border-color: var(--color-brand);
}

.list-group {
  --bs-list-group-bg: var(--color-surface);
  --bs-list-group-border-color: var(--color-border);
  --bs-list-group-border-radius: var(--radius-md);
  --bs-list-group-action-hover-bg: var(--color-surface-subtle);
  --bs-list-group-active-color: var(--velyx-architectural-white);
  --bs-list-group-active-bg: var(--color-brand);
  --bs-list-group-active-border-color: var(--color-brand);
}

/* ============================================================
   7. CARDS
   ============================================================
   Brand accents combine with Bootstrap cards:
   <div class="card velyx-card--technology"> (or --architectural, --transformation, --dark). */

.card {
  --bs-card-spacer-y: clamp(var(--space-5), 3vw, var(--space-8));
  --bs-card-spacer-x: clamp(var(--space-5), 3vw, var(--space-8));
  --bs-card-title-color: var(--color-text);
  --bs-card-border-color: var(--color-border);
  --bs-card-border-radius: var(--radius-md);
  --bs-card-inner-border-radius: calc(var(--radius-md) - 1px);
  --bs-card-cap-bg: var(--color-surface-subtle);
  --bs-card-bg: var(--color-surface);

  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--transition-standard),
    box-shadow var(--transition-standard),
    translate var(--transition-standard);
}

/* Lift only cards that are links. */
a.card:hover,
.card:has(.stretched-link):hover {
  border-color: var(--velyx-architecture-mist);
  box-shadow: var(--shadow-md);
  translate: 0 -2px;
}

/* ============================================================
   8. TABLES
   ============================================================ */

.table {
  --bs-table-color: var(--color-text-secondary);
  --bs-table-bg: var(--color-surface);
  --bs-table-border-color: var(--color-border-subtle);
  --bs-table-striped-color: var(--color-text-secondary);
  --bs-table-striped-bg: var(--velyx-neutral-50);
  --bs-table-active-color: var(--color-text);
  --bs-table-active-bg: var(--velyx-neutral-200);
  --bs-table-hover-color: var(--color-text);
  --bs-table-hover-bg: var(--color-surface-subtle);
}

.table:not(.table-sm) > :not(caption) > * > * {
  padding: var(--space-3) var(--space-4);
}

/* Midnight header row, as in the brand table. Zero specificity so
   .table-light / .table-dark on a thead still win. */
:where(.table > thead) {
  --bs-table-color: var(--velyx-architectural-white);
  --bs-table-bg: var(--velyx-midnight);
  --bs-table-border-color: var(--velyx-midnight);
}

:where(.table > thead) th {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

/* Re-declared after .table so they still apply when set on the table element. */
.table-light {
  --bs-table-color: var(--velyx-midnight);
  --bs-table-bg: var(--velyx-neutral-100);
  --bs-table-border-color: var(--velyx-neutral-300);
}

.table-dark {
  --bs-table-color: var(--velyx-architectural-white);
  --bs-table-bg: var(--velyx-midnight);
  --bs-table-border-color: var(--velyx-architectural-navy);
  --bs-table-striped-color: var(--velyx-architectural-white);
  --bs-table-striped-bg: var(--velyx-neutral-900);
  --bs-table-hover-color: var(--velyx-architectural-white);
  --bs-table-hover-bg: var(--velyx-architectural-navy);
}

/* ============================================================
   9. BADGES, ALERTS AND PROGRESS
   ============================================================ */

.badge {
  --bs-badge-padding-x: 0.65rem;
  --bs-badge-padding-y: 0.3rem;
  --bs-badge-font-size: var(--font-size-xs);
  --bs-badge-font-weight: var(--font-weight-semibold);
  --bs-badge-border-radius: var(--radius-pill);
}

.alert {
  --bs-alert-border-radius: var(--radius-md);
}

.progress,
.progress-stacked {
  --bs-progress-bg: var(--color-surface-subtle);
  --bs-progress-border-radius: var(--radius-pill);
  --bs-progress-bar-bg: var(--color-interactive);
}

/* ============================================================
   10. ACCORDION
   ============================================================ */

.accordion {
  --bs-accordion-color: var(--color-text-secondary);
  --bs-accordion-bg: var(--color-surface);
  --bs-accordion-border-color: var(--color-border);
  --bs-accordion-border-radius: var(--radius-md);
  --bs-accordion-inner-border-radius: calc(var(--radius-md) - 1px);
  --bs-accordion-btn-color: var(--color-text);
  --bs-accordion-btn-focus-box-shadow: inset 0 0 0 3px rgb(40 100 220 / 80%);
  --bs-accordion-active-color: var(--color-text);
  --bs-accordion-active-bg: var(--color-surface-subtle);
  --bs-accordion-btn-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23081b2c' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M2 5L8 11L14 5'/%3e%3c/svg%3e");
  --bs-accordion-btn-active-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23081b2c' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M2 5L8 11L14 5'/%3e%3c/svg%3e");
}

.accordion-button {
  font-weight: var(--font-weight-semibold);
}

/* ============================================================
   11. OVERLAYS
   ============================================================ */

.modal {
  --bs-modal-bg: var(--color-surface);
  --bs-modal-border-color: var(--color-border);
  --bs-modal-border-radius: var(--radius-lg);
  --bs-modal-inner-border-radius: calc(var(--radius-lg) - 1px);
  --bs-modal-box-shadow: var(--shadow-lg);
}

.modal-backdrop {
  --bs-backdrop-bg: var(--velyx-midnight);
  --bs-backdrop-opacity: 0.6;
}

.offcanvas,
.offcanvas-xxl,
.offcanvas-xl,
.offcanvas-lg,
.offcanvas-md,
.offcanvas-sm {
  --bs-offcanvas-bg: var(--color-surface);
  --bs-offcanvas-border-color: var(--color-border);
  --bs-offcanvas-box-shadow: var(--shadow-lg);
}

.toast {
  --bs-toast-bg: var(--color-surface);
  --bs-toast-border-color: var(--color-border);
  --bs-toast-border-radius: var(--radius-md);
  --bs-toast-box-shadow: var(--shadow-md);
}

.tooltip {
  --bs-tooltip-color: var(--velyx-architectural-white);
  --bs-tooltip-bg: var(--velyx-midnight);
  --bs-tooltip-border-radius: var(--radius-xs);
  --bs-tooltip-opacity: 1;
}

.popover {
  --bs-popover-bg: var(--color-surface);
  --bs-popover-border-color: var(--color-border);
  --bs-popover-border-radius: var(--radius-md);
  --bs-popover-box-shadow: var(--shadow-md);
  --bs-popover-header-bg: var(--color-surface-subtle);
  --bs-popover-header-color: var(--color-text);
}

/* ============================================================
   12. DARK SECTIONS
   ============================================================
   Bootstrap components inside a Midnight or Navy section (velyx-hero,
   velyx-section--dark, velyx-section--navy) should carry
   data-bs-theme="dark" on that section. This maps Bootstrap's dark
   variables and the brand's semantic tokens to their dark values
   (from section 17 of velyx-brand.css), so links, cards and forms
   inside the section stay legible. It must follow Bootstrap's own
   dark block. */

[data-bs-theme=dark] {
  --color-background: var(--velyx-midnight);
  --color-background-alt: var(--velyx-midnight);
  --color-surface: #0c2438;
  --color-surface-subtle: #102d46;
  --color-text: var(--velyx-architectural-white);
  --color-text-secondary: #d7e1e9;
  --color-text-muted: var(--velyx-architecture-mist);
  --color-text-link: #8eb2ff;
  --color-interactive-hover: #b0c9ff;
  --color-border: #29455c;
  --color-border-subtle: #1e3b51;
  --color-border-strong: #527087;

  --bs-body-color: var(--color-text-secondary);
  --bs-body-color-rgb: 215, 225, 233;
  --bs-body-bg: var(--color-background);
  --bs-body-bg-rgb: 8, 27, 44;
  --bs-emphasis-color: var(--color-text);
  --bs-emphasis-color-rgb: 246, 248, 250;
  --bs-secondary-color: var(--color-text-muted);
  --bs-secondary-bg: var(--color-surface-subtle);
  --bs-tertiary-bg: var(--color-surface);
  --bs-heading-color: var(--color-text);
  --bs-link-color: var(--color-text-link);
  --bs-link-color-rgb: 142, 178, 255;
  --bs-link-hover-color: var(--color-interactive-hover);
  --bs-link-hover-color-rgb: 176, 201, 255;
  --bs-border-color: var(--color-border);
  --bs-border-color-translucent: rgb(182 202 220 / 18%);
}

/* Midnight-coloured controls would vanish on a dark surface; invert them. */
[data-bs-theme=dark] .btn-primary {
  --velyx-btn-fg: var(--velyx-midnight);
  --velyx-btn-bg: var(--velyx-architectural-white);
  --velyx-btn-hover-bg: var(--velyx-architecture-mist);
  --velyx-btn-active-bg: var(--velyx-architecture-mist);
}

[data-bs-theme=dark] .btn-outline-primary {
  --velyx-btn-outline-fg: var(--velyx-architectural-white);
  --velyx-btn-outline-border: var(--velyx-architecture-mist);
  --velyx-btn-outline-hover-bg: var(--velyx-architectural-white);
  --velyx-btn-outline-hover-fg: var(--velyx-midnight);
}

[data-bs-theme=dark] :is(.btn-outline-technology, .btn-outline-info) {
  --velyx-btn-outline-fg: var(--color-text-link);
  --velyx-btn-outline-hover-fg: var(--velyx-midnight);
}

[data-bs-theme=dark] .nav-pills {
  --bs-nav-pills-link-active-color: var(--velyx-midnight);
  --bs-nav-pills-link-active-bg: var(--velyx-architectural-white);
}

/* ============================================================
   13. ACCESSIBILITY
   ============================================================ */

@media (forced-colors: active) {
  .btn,
  .card,
  .form-control,
  .form-select {
    border: 1px solid CanvasText;
  }
}