/* ==========================================================================
   VestaPayCare — Premium Base Styles & Resets
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--neutral-700);
  background-color: var(--surface-body);
  background-image: var(--gradient-mesh);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Premium Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--neutral-100);
}

::-webkit-scrollbar-thumb {
  background: var(--neutral-300);
  border-radius: var(--radius-full);
  border: 2px solid var(--neutral-100);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-400);
}

/* Selection */
::selection {
  background: rgba(14, 165, 233, 0.2);
  color: var(--primary-900);
}

/* Typography Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--neutral-900);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 { font-size: var(--text-4xl); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: var(--text-3xl); font-weight: 800; letter-spacing: -0.025em; }
h3 { font-size: var(--text-2xl); font-weight: 700; }
h4 { font-size: var(--text-xl); font-weight: 600; }
h5 { font-size: var(--text-lg); font-weight: 600; }
h6 { font-size: var(--text-base); font-weight: 600; }

p {
  margin-bottom: var(--space-4);
  color: var(--neutral-600);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--accent-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-500);
}

ul, ol {
  list-style: none;
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Focus-visible for accessibility */
:focus-visible {
  outline: 2px solid var(--accent-400);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

/* Skip Navigation for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-500);
  color: #fff;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 10000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 16px;
}

/* Global Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section-padding {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

@media (max-width: 768px) {
  .section-padding {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
}

/* Flex & Grid Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* Text Accent Gradients */
.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Section Header Component */
.section-header {
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-16);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.08), rgba(37, 75, 130, 0.06));
  color: var(--accent-600);
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  position: relative;
}

.section-badge::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-500);
  box-shadow: 0 0 8px var(--accent-glow-strong);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--neutral-600);
  line-height: 1.6;
}

/* Margin Utilities */
.mb-8 { margin-bottom: var(--space-8); }
.mb-16 { margin-bottom: var(--space-16); }