/* ============================================
   base.css — Reset & Global Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  background: var(--blue-50);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.15;
}

h1 {
  font-size: clamp(36px, 5vw, 56px);
  color: #fff;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: var(--space-5);
}

h1 span { color: var(--blue-300); }

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

input, select, textarea, button {
  font-family: var(--font-base);
}

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

/* Scroll reveal utility */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Section common */
.section {
  padding: 64px 48px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--blue-100);
  border: var(--border-w) solid var(--blue-200);
  border-radius: var(--radius-btn);
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue-700);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin-bottom: var(--space-2);
}

.section-subtitle {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 520px;
  margin-bottom: var(--space-10);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}