/* ═══════════════════════════════════════════════════════════════════
   NAVEDAS · CORE · shared design tokens, a11y utilities, motion safety
   Additive — does not override existing page styles unless class is used.
═══════════════════════════════════════════════════════════════════ */

/* Geist — modern geometric sans for display headlines (Vercel's font) */
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700;800;900&display=swap');

:root {
  /* Brand */
  --nv-purple: #4A2B7E;
  --nv-purple-hover: #6B3FA0;
  --nv-purple-deep: #2D1B5E;
  --nv-navy: #0F0A1E;
  --nv-teal: #3BAA96;
  --nv-danger: #D94452;

  /* Neutrals */
  --nv-ink: #0F0A1E;
  --nv-ink-soft: #2D2047;
  --nv-muted: #6B6480;
  --nv-muted-soft: #9B92B0;
  --nv-border: #E8E6F0;
  --nv-border-soft: #F0EBF8;
  --nv-surface: #F8F7FF;
  --nv-surface-soft: #F3F1FA;

  /* Radii — canonical scale */
  --nv-radius-xs: 6px;
  --nv-radius-sm: 8px;
  --nv-radius-md: 12px;
  --nv-radius-lg: 16px;
  --nv-radius-pill: 100px;

  /* Shadows */
  --nv-shadow-sm: 0 4px 12px rgba(74,43,126,0.12);
  --nv-shadow-md: 0 8px 28px rgba(74,43,126,0.16);
  --nv-shadow-lg: 0 16px 48px rgba(74,43,126,0.22);

  /* Motion */
  --nv-ease: cubic-bezier(0.2, 0, 0, 1);
  --nv-dur-fast: 160ms;
  --nv-dur: 220ms;
  --nv-dur-slow: 360ms;

  /* Typography — Inter body + Geist for modern/technical display headlines */
  --nv-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, "Helvetica Neue", Arial, sans-serif;
  --nv-font-display: 'Geist', 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

/* ─────────────────────────────────────────────────────────
   Global typography — Inter for body + UI, IBM Plex Sans for headlines.
   Heavy specificity + !important to override per-page inline styles.
───────────────────────────────────────────────────────── */
html {
  font-size: 17px; /* up from browser default 16px — improves body readability. All rem values scale proportionally. */
}
html,
body,
button,
input,
select,
textarea,
p, a, span, div, li, label,
h4, h5, h6 {
  font-family: var(--nv-font-sans) !important;
}

/* Display headlines — IBM Plex Sans for authoritative/engineered feel */
h1, h2, h3,
.hero h1, .hero h2,
#hero h1, #hero h2,
.section-title,
.hero-title,
.hero-inner h1 {
  font-family: var(--nv-font-display) !important;
}

/* Hero H1 — heavy display weight, dark purple-ink body + solid purple emphasis span */
.hero h1,
#hero h1,
.hero-title,
.hero-inner h1,
section.hero h1,
section#hero h1 {
  font-size: clamp(2.75rem, 5.75vw, 4.25rem) !important;
  font-weight: 900 !important;
  letter-spacing: -0.045em !important;
  line-height: 1.02 !important;
  color: #1E1A3D !important;
  -webkit-text-fill-color: #1E1A3D !important;
  background: none !important;
  max-width: 900px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

/* Hero H1 emphasis span — solid deep-purple, same heavy weight */
.hero h1 em,
#hero h1 em,
.hero h1 .gradient-text,
#hero h1 .gradient-text,
.hero-title em,
.hero-inner h1 em {
  color: #4A2B7E !important;
  -webkit-text-fill-color: #4A2B7E !important;
  background: none !important;
  background-clip: unset !important;
  -webkit-background-clip: unset !important;
  font-weight: 900 !important;
  font-style: normal !important;
}

/* Section H2 — also bolder for hierarchy */
h2,
.section-title {
  font-size: clamp(1.85rem, 3.6vw, 2.5rem) !important;
  font-weight: 800 !important;
  letter-spacing: -0.032em !important;
  line-height: 1.12 !important;
}

/* H3 — sub-section labels */
h3 {
  font-weight: 700 !important;
  letter-spacing: -0.018em !important;
}

/* Global H1 rule — catches non-hero H1 (legal pages, etc.) */
h1 {
  font-weight: 900 !important;
  letter-spacing: -0.04em !important;
}

/* Section titles — unified purple gradient treatment across all pages.
   Overrides per-page navy/navy-dark declarations. */
.section-title {
  background: linear-gradient(135deg, #2D1B5E 0%, #6B3FA0 55%, #3BAA96 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  color: transparent !important;
}

/* Keep white on dark sections where the gradient would be unreadable */
.section-dark .section-title,
.dark-section .section-title,
[class*="dark"] .section-title {
  background: none !important;
  -webkit-text-fill-color: #fff !important;
  color: #fff !important;
}

/* ─────────────────────────────────────────────────────────
   Visually hidden — for screen-reader-only text (labels, etc)
───────────────────────────────────────────────────────── */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ─────────────────────────────────────────────────────────
   Skip link — first focusable on every page
───────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -60px;
  left: 12px;
  background: var(--nv-purple);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--nv-radius-sm);
  font-weight: 700;
  text-decoration: none;
  z-index: 100000;
  font-size: 0.9rem;
  transition: top var(--nv-dur-fast) var(--nv-ease);
}
.skip-link:focus,
.skip-link:focus-visible {
  top: 12px;
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* ─────────────────────────────────────────────────────────
   Keyboard focus ring — global, only shows on keyboard nav
───────────────────────────────────────────────────────── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[role="button"]:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--nv-purple) !important;
  outline-offset: 3px !important;
  border-radius: var(--nv-radius-xs);
}
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline-offset: 1px !important;
}
:focus:not(:focus-visible) {
  outline: none;
}

/* ─────────────────────────────────────────────────────────
   Minimum tap target — WCAG 2.5.5, applied to primary CTAs + form controls
   (Blanket rule skipped to avoid breaking inline icon triggers; opt-in via .nv-icon-btn)
───────────────────────────────────────────────────────── */
input[type="submit"],
input[type="button"],
button[type="submit"],
.btn-primary,
.btn-nav,
.btn-cta,
.form-submit {
  min-height: 44px;
}
.nv-icon-btn {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ─────────────────────────────────────────────────────────
   Form loading state — "is-loading" drops opacity, kills pointer
───────────────────────────────────────────────────────── */
.is-loading {
  opacity: 0.7;
  cursor: progress !important;
  pointer-events: none;
}
.is-loading .spinner,
button.is-loading::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-left: 0.55rem;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  vertical-align: -2px;
  animation: nv-spin 640ms linear infinite;
}
@keyframes nv-spin {
  to { transform: rotate(360deg); }
}

/* ─────────────────────────────────────────────────────────
   Inline form validation — surfaces :invalid after user interaction
───────────────────────────────────────────────────────── */
form.was-validated input:invalid,
form.was-validated textarea:invalid,
form.was-validated select:invalid {
  border-color: var(--nv-danger) !important;
  box-shadow: 0 0 0 3px rgba(217, 68, 82, 0.12) !important;
}
.field-error {
  display: none;
  font-size: 0.75rem;
  color: var(--nv-danger);
  margin-top: 0.35rem;
  font-weight: 600;
}
form.was-validated input:invalid ~ .field-error,
form.was-validated textarea:invalid ~ .field-error,
form.was-validated select:invalid ~ .field-error {
  display: block;
}

/* ─────────────────────────────────────────────────────────
   Reduced motion — honour user's OS setting
───────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ─────────────────────────────────────────────────────────
   Canonical button hover — replaces inline onmouseover/onmouseout
───────────────────────────────────────────────────────── */
.btn-primary,
button[type="submit"]:not(.form-submit),
.btn-cta {
  transition: background-color var(--nv-dur) var(--nv-ease),
              transform var(--nv-dur) var(--nv-ease),
              box-shadow var(--nv-dur) var(--nv-ease);
}
.btn-primary:hover,
button[type="submit"]:not(.form-submit):hover,
.btn-cta:hover {
  background-color: var(--nv-purple-hover) !important;
  transform: translateY(-1px);
  box-shadow: var(--nv-shadow-md);
}
.btn-primary:focus-visible,
button[type="submit"]:focus-visible,
.btn-cta:focus-visible {
  background-color: var(--nv-purple-hover) !important;
}

/* ─────────────────────────────────────────────────────────
   Card hover — replaces inline onmouseover/onmouseout handlers
───────────────────────────────────────────────────────── */
.nv-card-hover {
  transition: transform var(--nv-dur) var(--nv-ease),
              box-shadow var(--nv-dur) var(--nv-ease);
  will-change: transform;
}
.nv-card-hover:hover {
  transform: translateY(-4px);
}
.nv-card-hover--shadow:hover {
  box-shadow: 0 12px 36px rgba(74, 43, 126, 0.10);
}

/* Arrow-grow link — tiny gap animation on hover */
.nv-arrow-link {
  transition: gap var(--nv-dur-fast) var(--nv-ease),
              color var(--nv-dur-fast) var(--nv-ease);
}
.nv-arrow-link:hover,
.nv-arrow-link:focus-visible {
  gap: 12px !important;
}

/* ─────────────────────────────────────────────────────────
   Trust badges — SOC 2 / ISO 27001 / GDPR / HIPAA seal row
───────────────────────────────────────────────────────── */
.nv-trust-section {
  padding: 36px 2rem;
  background: #F3F1FA;
  border-top: 1px solid #E2DCF0;
  border-bottom: 1px solid #E2DCF0;
  color: var(--nv-purple-deep);
}
.nv-trust-section--dark {
  background: transparent;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.92);
  padding: 28px 2rem;
}
.nv-trust-section--feature {
  padding: 72px 2rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #F3F1FA 100%);
  border-top: 1px solid #E2DCF0;
  border-bottom: 1px solid #E2DCF0;
}
.nv-trust-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}
.nv-trust-section--dark .nv-trust-inner { gap: 18px; }
.nv-trust-eyebrow {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--nv-muted);
  margin: 0;
}
.nv-trust-section--dark .nv-trust-eyebrow { color: rgba(255,255,255,0.55); }
.nv-trust-section--feature .nv-trust-eyebrow { color: var(--nv-purple); }
.nv-trust-heading {
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--nv-ink);
  text-align: center;
  margin: 0;
  max-width: 640px;
}
.nv-trust-sub {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--nv-muted);
  text-align: center;
  max-width: 520px;
  margin: 0;
}
.nv-trust-badges {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: clamp(1.5rem, 4vw, 3.25rem);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.nv-trust-badge {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: currentColor;
}
.nv-trust-section .nv-trust-badge { color: var(--nv-purple); }
.nv-trust-section--dark .nv-trust-badge { color: rgba(255,255,255,0.92); }
.nv-trust-section--feature .nv-trust-badge { color: var(--nv-purple-deep); }
.nv-trust-badge-mark {
  width: 84px;
  height: 84px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: transform var(--nv-dur) var(--nv-ease);
}
.nv-trust-badge-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.nv-trust-section--feature .nv-trust-badge-mark { width: 116px; height: 116px; }
/* Dark-variant: white circular chip so colored official marks always read cleanly */
.nv-trust-section--dark .nv-trust-badge-mark {
  background: #FFFFFF;
  padding: 6px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
}
.nv-trust-badge:hover .nv-trust-badge-mark {
  transform: translateY(-2px);
}
.nv-trust-badge-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
  text-align: center;
  line-height: 1.2;
}
.nv-trust-section--feature .nv-trust-badge-label {
  font-size: 0.8rem;
  opacity: 1;
  color: var(--nv-ink);
}
.nv-trust-divider {
  width: 1px;
  height: 48px;
  background: rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
}
.nv-trust-section--dark .nv-trust-divider { background: rgba(255,255,255,0.12); }
@media (max-width: 640px) {
  .nv-trust-divider { display: none; }
  .nv-trust-badges { gap: 2rem; }
  .nv-trust-section--feature { padding: 56px 1.25rem; }
}