/* ═══════════════════════════════════════════════════════════════
   VNV — VITALS & VECTORS ECOSYSTEM
   Core Design Tokens & Global Style Foundation
   Palette: Corporate Light Theme
   Canvas: Crisp White (#ffffff) + Slate (#0f172a / #334155) + Teal (#0891b2) + Sapphire (#0284c7)
═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Outfit:wght@300;400;500;600;700;800;900&family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400&display=swap');
@import url('mobile-app-ux.css');

/* ─── RESET & BOX SIZING ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* ── Brand Colors (VNV Corporate Palette) ── */
  --primary:         #0891b2;        /* Refined Corporate Cyan-Teal */
  --primary-dk:      #0e7490;        /* Deep Ocean Teal */
  --primary-glow:    #0284c7;        /* Sapphire Highlight */
  --primary-dim:     rgba(8, 145, 178, 0.08); /* Soft Teal Tint */
  --primary-border:  rgba(8, 145, 178, 0.22);
  
  --accent-blue:     #0284c7;        /* Sapphire Vector Blue */
  --accent-cyan:     #06b6d4;        /* Sky Highlight */
  --accent-purple:   #6366f1;        /* Kinetic Gradient Accent */

  /* ── Corporate Light Background & Surface Scale ── */
  --navy:            #ffffff;        /* Base Clean White */
  --navy-2:          #f8fafc;        /* Elevated Surface Light */
  --navy-3:          #f1f5f9;        /* Neutral Tint Surface */
  --navy-card:       #ffffff;        /* Pure White Card */
  --navy-border:     rgba(15, 23, 42, 0.08); /* Subtle Slate Border */

  /* ── Slate & Text Scale ── */
  --white:           #0f172a;        /* High-contrast Main Heading (Slate 900) */
  --gray-50:         #0f172a;
  --gray-100:        #1e293b;        /* Main Content Text (Slate 800) */
  --gray-200:        #334155;        /* Secondary Text (Slate 700) */
  --gray-300:        #475569;        /* Medium Body Text (Slate 600) */
  --gray-400:        #64748b;        /* Muted Text / Meta (Slate 500) */
  --gray-600:        #94a3b8;
  --gray-800:        #e2e8f0;
  --gray-900:        #f8fafc;

  /* ── Aliases ── */
  --black:           #0f172a;
  --tata-red:        #0891b2;
  --red-dark:        #0e7490;

  /* ── Typography ── */
  --font-display:    'Outfit', 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans:       'DM Sans', system-ui, -apple-system, sans-serif;
  --font-serif:      'EB Garamond', Georgia, serif;

  /* ── Layout & UI Spacing ── */
  --nav-h:           76px;
  --max-w:           1340px;
  --radius-sm:       6px;
  --radius-md:       12px;
  --radius-lg:       20px;
  --radius-full:     9999px;

  /* ── Elevation Shadows (Soft Corporate) ── */
  --shadow-subtle:   0 2px 12px rgba(0, 0, 0, 0.04);
  --shadow-glow:     0 8px 30px rgba(8, 145, 178, 0.12);
  --shadow-glow-lg:  0 12px 40px rgba(8, 145, 178, 0.18);
  --shadow-card:     0 8px 24px -6px rgba(15, 23, 42, 0.06), 0 2px 6px rgba(0, 0, 0, 0.03);
}

/* ─── BASE HTML & BODY ─── */
html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: light;
}

body {
  font-family: var(--font-sans);
  background: var(--navy);
  color: var(--gray-200);
  overflow-x: hidden;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.page-interior {
  padding-top: var(--nav-h);
  background: #f8fafc;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ─── TYPOGRAPHY UTILITIES ─── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 14px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(8, 145, 178, 0.5);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.8vw, 46px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-title-light {
  color: var(--white);
}

.section-body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray-300);
  max-width: 680px;
}

.highlight-gradient {
  background: linear-gradient(135deg, var(--primary-dk) 20%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ─── CONTAINER & SECTION ─── */
.section-container {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.section {
  padding: 80px 48px;
  position: relative;
}

@media (max-width: 1024px) {
  .section { padding: 60px 32px; }
}
@media (max-width: 768px) {
  .section { padding: 40px 18px; }
}
@media (max-width: 480px) {
  .section { padding: 30px 14px; }
}

/* ─── GLASSMORPHIC CARDS (WHITE CORPORATE) ─── */
.glass-card {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
  border-color: rgba(8, 145, 178, 0.35);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

/* ─── BUTTONS ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-blue) 100%);
  color: #ffffff !important;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px rgba(8, 145, 178, 0.28);
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(8, 145, 178, 0.4);
  gap: 14px;
}

.btn-secondary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #ffffff;
  color: #0f172a;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid #cbd5e1;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
  transition: all 0.25s ease;
  text-decoration: none;
}

.btn-secondary:hover, .btn-ghost:hover {
  background: #f8fafc;
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(8, 145, 178, 0.15);
}

/* ─── BADGES ─── */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background: rgba(8, 145, 178, 0.08);
  border: 1px solid rgba(8, 145, 178, 0.24);
  color: var(--primary-dk);
}

/* ─── ACCESSIBILITY & UTILITIES ─── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}