/* ══════════════════════════════════════════
   BASE — Reset, Global, Utilities
══════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background grid pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 197, 94, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 197, 94, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

section, nav, footer {
  position: relative;
  z-index: 1;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── Container ─────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

/* ── Buttons ───────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.7rem 1.5rem;
  border-radius: var(--r-full);
  font-family: var(--font);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t-base) var(--ease);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn--sm {
  padding: 0.5rem 1.1rem;
  font-size: var(--text-xs);
}

.btn--lg {
  padding: 0.875rem 2rem;
  font-size: var(--text-base);
}

.btn-primary {
  background: var(--clr-primary);
  color: #031008;
  border-color: var(--clr-primary);
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--clr-primary-light);
  border-color: var(--clr-primary-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--clr-text);
  border-color: var(--clr-border);
}

.btn-outline:hover {
  border-color: var(--clr-primary-border);
  color: var(--clr-primary-light);
  background: var(--clr-primary-subtle);
  transform: translateY(-2px);
}

/* ── Section Tag ───────────────── */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 0.35rem 0.9rem;
  background: var(--clr-primary-subtle);
  border: 1px solid var(--clr-primary-border);
  border-radius: var(--r-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--clr-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--sp-5);
}

/* ── Section Header ────────────── */
.section-header {
  text-align: center;
  margin-bottom: var(--sp-16);
}

.section-header h2 {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-4);
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--clr-text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ── Gradient Text ─────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--clr-primary) 0%, #86efac 60%, #a3e635 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Divider ───────────────────── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--clr-border);
}