/* ============================================
   SAINT ANALYTICS - Base Styles
   Global reset and foundational styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--foreground);
  background-color: var(--background);
  min-height: 100vh;
  overflow-x: hidden;
}

/* === TYPOGRAPHY BASE === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--foreground);
  letter-spacing: var(--tracking-tight);
}

h1 {
  font-size: clamp(var(--text-3xl), 6vw, var(--text-6xl));
}

h2 {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
}

h3 {
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
}

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

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

h6 {
  font-size: var(--text-base);
}

p {
  color: var(--foreground-muted);
  line-height: var(--leading-relaxed);
}

/* === LINKS === */
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

/* === SELECTION === */
::selection {
  background-color: var(--primary-muted);
  color: var(--foreground);
}

/* === FOCUS STYLES === */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* === IMAGES === */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* === LISTS === */
ul, ol {
  list-style: none;
}

/* === BUTTONS RESET === */
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* === INPUTS RESET === */
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

/* === UTILITY CLASSES === */

/* Text colors */
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-muted { color: var(--foreground-muted); }
.text-subtle { color: var(--foreground-subtle); }

/* Background colors */
.bg-primary { background-color: var(--background); }
.bg-secondary { background-color: var(--background-secondary); }
.bg-tertiary { background-color: var(--background-tertiary); }
.bg-card { background-color: var(--background-card); }

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

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Section spacing */
.section {
  padding: var(--space-16) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-20) 0;
  }
}

@media (min-width: 1024px) {
  .section {
    padding: var(--space-24) 0;
  }
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

/* === SCROLLBAR STYLING === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--foreground-subtle);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-hover) var(--background-secondary);
}