/* CSM Website Base Styles
 * Core layout and typography system
 */

@import 'tokens.css';

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: Inter, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  min-height: 100vh;
  font: 400 var(--fs0)/1.65 Inter;
  color: var(--muted);
  background: var(--bg-grad);
  overflow-x: hidden;
}

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

/* Layout */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 var(--sp-4);
  width: 100%;
}

.section {
  padding: var(--sp-9) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--sp-7) 0;
  }
}

/* Typography */
.eyebrow {
  font: 600 var(--fs-1)/1 Inter;
  letter-spacing: 0.4px;
  color: #ffffff;
  background: var(--green);
  padding: var(--sp-0) var(--sp-1);
  border-radius: 999px;
  display: inline-block;
  margin: 0 0 var(--sp-2);
}

.h1 {
  font: 800 var(--fs6)/1.05 Inter;
  margin: 0.5rem 0 var(--sp-3);
  color: var(--text);
  max-width: 48ch;
}

.h2 {
  font: 800 var(--fs4)/1.15 Inter;
  margin: 0 0 var(--sp-3);
  color: var(--text);
}

.h3 {
  font: 700 var(--fs3)/1.2 Inter;
  margin: 0 0 var(--sp-2);
  color: var(--text);
}

.lead {
  font: 400 var(--fs2)/1.5 Inter;
  color: var(--muted);
  margin: 0 0 var(--sp-5);
  max-width: 62ch;
}

p {
  margin: 0 0 var(--sp-4);
  max-width: 62ch;
}

/* Section Headers */
.section-hd {
  margin: 0 0 var(--sp-7);
  text-align: center;
}

.section-hd .lead {
  margin-left: auto;
  margin-right: auto;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--sp-6);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--sp-5);
  backdrop-filter: blur(10px) saturate(160%);
  transition: transform var(--transition-fast), 
              box-shadow var(--transition-fast), 
              border-color var(--transition-fast);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 132, 61, .30);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 12px 18px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: var(--fs0);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast);
  min-height: 44px;
}

/* Equal height cards helpers */
.grid.grid-3 > .card,
.grid.grid-2 > .card {
  display: flex;
  flex-direction: column;
}
.grid.grid-3 > .card > a.btn,
.grid.grid-3 > .card > button.btn,
.grid.grid-2 > .card > a.btn,
.grid.grid-2 > .card > button.btn {
  margin-top: auto;
}

.btn-primary {
  background: var(--yellow);
  color: #0a0a0a;
}

.btn-outline {
  border-color: rgba(0, 132, 61, .35);
  color: var(--green);
  background: transparent;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .10);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(255, 205, 0, .35);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(255, 255, 255, .85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px) saturate(140%);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  column-gap: var(--sp-6);
  height: 100%;
}

/* Utilities */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@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;
  }
}