/* ============================================
   MR Commerce v3.1 — Base & Utilities
   ============================================ */

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--surface-0);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: white;
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-lg);
  z-index: var(--z-toast);
  transition: top var(--duration-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }

.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;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container--wide { max-width: var(--container-wide); }
.container--narrow { max-width: var(--container-narrow); }

/* Section */
.section { padding-block: var(--space-section); }
.section--dark {
  background: var(--color-gray-950);
  color: var(--color-gray-100);
}
.section--dark p { color: var(--color-gray-400); }
.section--dark h2, .section--dark h3 { color: white; }

/* Section Header */
.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-4);
  background: var(--color-primary-50);
  color: var(--color-primary);
  font-size: 11px;
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  border: 1px solid var(--color-primary-100);
}

[data-theme="dark"] .section-badge,
.section--dark .section-badge {
  background: rgba(37,99,235,0.08);
  border-color: rgba(37,99,235,0.15);
}

.section-title {
  font-size: var(--text-display);
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tighter);
  margin-bottom: var(--space-5);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 520px;
  margin-inline: auto;
  line-height: var(--leading-relaxed);
}
.section--dark .section-subtitle { color: var(--color-gray-400); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-xl);
  padding: 10px var(--space-6);
  transition: all var(--duration-base) var(--ease-out);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 1px 3px rgba(37,99,235,0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(37,99,235,0.35), inset 0 1px 0 rgba(255,255,255,0.1);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--surface-0);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-xs);
}
.btn--secondary:hover {
  background: var(--surface-1);
  border-color: var(--border-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn--ghost { color: var(--text-secondary); padding: var(--space-2) var(--space-4); }
.btn--ghost:hover { color: var(--text-primary); background: var(--surface-1); }

.btn--lg { padding: 14px var(--space-8); font-size: var(--text-base); }
.btn--xl { padding: 18px var(--space-10); font-size: var(--text-lg); border-radius: var(--radius-2xl); font-weight: var(--weight-semibold); }

.btn--white { background: white; color: var(--color-gray-900); box-shadow: var(--shadow-md); }
.btn--white:hover { background: var(--color-gray-50); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn--outline-white { background: transparent; color: white; border: 1px solid rgba(255,255,255,0.2); }
.btn--outline-white:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.4); }

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

/* Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out);
}
[data-animate].is-visible { opacity: 1; transform: translateY(0); }
[data-animate="fade"] { transform: none; }
[data-animate="scale"] { transform: scale(0.95); }
[data-animate="scale"].is-visible { transform: scale(1); }
[data-animate="slide-left"] { transform: translateX(-32px); }
[data-animate="slide-left"].is-visible { transform: translateX(0); }
[data-animate="slide-right"] { transform: translateX(32px); }
[data-animate="slide-right"].is-visible { transform: translateX(0); }

@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-14px)} }
@keyframes pulse-subtle { 0%,100%{opacity:1} 50%{opacity:0.6} }
@keyframes glow-pulse { 0%,100%{box-shadow:0 0 20px rgba(37,99,235,0.15)} 50%{box-shadow:0 0 40px rgba(37,99,235,0.3)} }
@keyframes slide-logos { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }
@keyframes gradient-shift { 0%{background-position:0% 50%} 50%{background-position:100% 50%} 100%{background-position:0% 50%} }

@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;
  }
  [data-animate] { opacity: 1; transform: none; }
}