/* =====================================================
   Fire Test — Design System
   Theme: Seguridad Industrial NFPA
   Fonts: Montserrat (headings) + Inter (body)
   Accent: #DC2626 (red) | Ink: #0F172A | BG: #F8FAFC
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Montserrat:wght@600;700;800;900&display=swap');

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

:root {
  /* Colors */
  --clr-bg:        #F8FAFC;
  --clr-surface:   #FFFFFF;
  --clr-ink:       #0F172A;
  --clr-muted:     #475569;
  --clr-accent:    #DC2626;
  --clr-accent-dk: #B91C1C;
  --clr-accent-lt: #FEF2F2;
  --clr-border:    #E2E8F0;
  --clr-navy:      #1E3A8A;
  --clr-navy-lt:   #EFF6FF;

  /* Typography */
  --font-heading:  'Montserrat', system-ui, sans-serif;
  --font-body:     'Inter', system-ui, sans-serif;

  /* Spacing scale */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(15, 23, 42, 0.08);
  --shadow-md:  0 4px 16px rgba(15, 23, 42, 0.10);
  --shadow-lg:  0 8px 32px rgba(15, 23, 42, 0.14);
  --shadow-red: 0 4px 20px rgba(220, 38, 38, 0.25);

  /* Transitions */
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--clr-ink);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-accent); transition: color var(--transition); }
a:hover { color: var(--clr-accent-dk); }

/* ─── Layout Utilities ─── */
.container {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: var(--sp-6);
}

.section { padding-block: var(--sp-24); }
.section--alt { background: var(--clr-surface); }
.section--dark { background: var(--clr-ink); color: #F8FAFC; }
.section--navy { background: var(--clr-navy); color: #F8FAFC; }
.section--accent { background: var(--clr-accent); color: #fff; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }

/* ─── Navigation ─── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--sp-6);
}

.nav-logo { display: flex; align-items: center; flex-shrink: 0; }
.nav-logo img { height: 42px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--sp-1);
}

.nav-links a {
  display: block;
  padding: var(--sp-2) var(--sp-4);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-links a:hover { color: var(--clr-ink); background: var(--clr-bg); }
.nav-links a.active { color: var(--clr-accent); background: var(--clr-accent-lt); }

.nav-cta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  border: 0;
  background: none;
  padding: var(--sp-2);
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--clr-ink);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0 var(--sp-6);
  height: 48px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-red);
}
.btn-primary:hover {
  background: var(--clr-accent-dk);
  border-color: var(--clr-accent-dk);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(220, 38, 38, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--clr-ink);
  border-color: var(--clr-border);
}
.btn-secondary:hover {
  background: var(--clr-bg);
  border-color: var(--clr-ink);
  color: var(--clr-ink);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}
.btn-ghost:hover {
  background: var(--clr-accent);
  color: #fff;
}

.btn-lg { height: 56px; padding: 0 var(--sp-8); font-size: 1rem; }
.btn-sm { height: 40px; padding: 0 var(--sp-4); font-size: 0.875rem; }
.btn-whatsapp { background: #25D366; color: #fff; border-color: #25D366; }
.btn-whatsapp:hover { background: #128C7E; border-color: #128C7E; color: #fff; }
.btn-full { width: 100%; }

/* ─── Hero Section ─── */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(15, 23, 42, 0.88) 0%,
    rgba(15, 23, 42, 0.65) 55%,
    rgba(15, 23, 42, 0.25) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  padding-block: var(--sp-20);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--sp-4);
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-accent);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: var(--sp-6);
  color: #fff;
}

.hero h1 span { color: var(--clr-accent); }

.hero-lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.82);
  margin-bottom: var(--sp-8);
  max-width: 520px;
}

.hero-actions { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

.hero-badges {
  display: flex;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
  flex-wrap: wrap;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
}

.hero-badge svg { width: 16px; height: 16px; fill: var(--clr-accent); flex-shrink: 0; }

/* ─── Section Headers ─── */
.section-header { text-align: center; margin-bottom: var(--sp-12); }
.section-header.left { text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-accent);
  margin-bottom: var(--sp-3);
}
.eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
}

h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--clr-ink);
  margin-bottom: var(--sp-4);
}

.section--dark h2, .section--navy h2, .section--accent h2 { color: #fff; }

.section-lead {
  font-size: 1.0625rem;
  color: var(--clr-muted);
  max-width: 640px;
  margin-inline: auto;
  line-height: 1.7;
}
.section-header.left .section-lead { margin-inline: 0; }
.section--dark .section-lead,
.section--navy .section-lead,
.section--accent .section-lead { color: rgba(255,255,255,0.78); }

h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-ink);
  margin-bottom: var(--sp-2);
}

/* ─── Cards ─── */
.card {
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
  padding: var(--sp-8);
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: transparent;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--clr-accent-lt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-4);
  color: var(--clr-accent);
}
.card-icon svg { width: 26px; height: 26px; }

/* ─── Process Steps ─── */
.steps { counter-reset: step; display: flex; flex-direction: column; gap: var(--sp-6); }

.step {
  display: flex;
  gap: var(--sp-6);
  padding: var(--sp-6);
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
  transition: all var(--transition);
}
.step:hover { box-shadow: var(--shadow-md); border-color: transparent; }

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--clr-accent);
  color: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
}

.step-body h3 { margin-bottom: var(--sp-1); }
.step-body p { color: var(--clr-muted); font-size: 0.9375rem; }

/* ─── Feature List ─── */
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: 0.9375rem;
  color: var(--clr-muted);
}

.feature-list li::before {
  content: '';
  flex-shrink: 0;
  margin-top: 5px;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  background: var(--clr-accent-lt);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23DC2626' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

/* ─── Stat Boxes ─── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--sp-4); }

.stat-box {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  text-align: center;
}

.stat-box--light {
  background: var(--clr-surface);
  border-color: var(--clr-border);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: var(--sp-1);
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--clr-muted);
  font-weight: 500;
}

.section--dark .stat-label,
.section--navy .stat-label { color: rgba(255,255,255,0.65); }
.section--dark .stat-value,
.section--navy .stat-value { color: var(--clr-accent); }

/* ─── Contact / Lead Form ─── */
.contact-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

.form-card {
  background: var(--clr-surface);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--clr-border);
}

.form-card h3 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: var(--sp-2);
}

.form-card p {
  color: var(--clr-muted);
  font-size: 0.9rem;
  margin-bottom: var(--sp-6);
}

.form-grid {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }

.field-group { display: flex; flex-direction: column; gap: var(--sp-1); }

.field-group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-ink);
}

.field-group input,
.field-group select,
.field-group textarea {
  height: 48px;
  padding: 0 var(--sp-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--clr-ink);
  background: var(--clr-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.field-group textarea {
  height: 120px;
  padding: var(--sp-3);
  resize: vertical;
}

.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12);
}

.field-group input::placeholder,
.field-group textarea::placeholder { color: #94A3B8; }

.form-divider {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  color: var(--clr-muted);
  font-size: 0.8125rem;
  margin-block: var(--sp-2);
}
.form-divider::before,
.form-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--clr-border);
}

.privacy-note {
  font-size: 0.75rem;
  color: var(--clr-muted);
  text-align: center;
  margin-top: var(--sp-3);
}

/* ─── CTA Strip ─── */
.cta-strip {
  background: linear-gradient(135deg, var(--clr-ink) 0%, var(--clr-navy) 100%);
  color: #fff;
  padding-block: var(--sp-16);
  text-align: center;
}

.cta-strip h2 { color: #fff; }
.cta-strip p { color: rgba(255,255,255,0.75); margin-bottom: var(--sp-8); max-width: 540px; margin-inline: auto; }

.cta-actions {
  display: flex;
  gap: var(--sp-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── Testimonials / Proof ─── */
.proof-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-8);
  flex-wrap: wrap;
  padding: var(--sp-8) 0;
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
}

.proof-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  color: var(--clr-muted);
  font-size: 0.875rem;
  font-weight: 600;
}

.proof-item svg { width: 20px; height: 20px; color: var(--clr-accent); flex-shrink: 0; }

/* ─── Badge / Tag ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.badge-red { background: var(--clr-accent-lt); color: var(--clr-accent); }
.badge-navy { background: var(--clr-navy-lt); color: var(--clr-navy); }
.badge-green { background: #F0FDF4; color: #15803D; }

/* ─── Country Flags / Tags ─── */
.country-tags { display: flex; gap: var(--sp-2); flex-wrap: wrap; margin-top: var(--sp-2); }
.country-tag {
  padding: var(--sp-1) var(--sp-3);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-ink);
}

/* ─── Accordion FAQ ─── */
.accordion { display: flex; flex-direction: column; gap: var(--sp-2); }

.accordion-item {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  background: var(--clr-surface);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-ink);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background var(--transition);
}
.accordion-trigger:hover { background: var(--clr-bg); }
.accordion-trigger svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--clr-accent);
  transition: transform var(--transition);
}
.accordion-trigger[aria-expanded="true"] svg { transform: rotate(45deg); }

.accordion-body {
  padding: 0 var(--sp-6) var(--sp-5);
  color: var(--clr-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  display: none;
}
.accordion-body.open { display: block; }

/* ─── Image + Content block ─── */
.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}

.split-block.reverse { direction: rtl; }
.split-block.reverse > * { direction: ltr; }

.split-img {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}
.split-img img { width: 100%; height: 100%; object-fit: cover; }

/* ─── Sector Tags ─── */
.sector-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}
.sector-tag {
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-muted);
  background: var(--clr-surface);
  transition: all var(--transition);
}
.sector-tag:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: var(--clr-accent-lt);
}

/* ─── Footer ─── */
.site-footer {
  background: var(--clr-ink);
  color: rgba(255,255,255,0.65);
  padding-block: var(--sp-12) var(--sp-8);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--sp-12);
  margin-bottom: var(--sp-12);
}

.footer-brand img { height: 36px; width: auto; margin-bottom: var(--sp-4); filter: brightness(0) invert(1); }
.footer-brand p { font-size: 0.875rem; line-height: 1.6; max-width: 280px; }

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-4);
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: var(--sp-2); }
.footer-col ul a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-col ul a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--sp-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.footer-bottom a { color: rgba(255,255,255,0.6); text-decoration: none; }
.footer-bottom a:hover { color: #fff; }

/* ─── WhatsApp Float Button ─── */
.whatsapp-float {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  z-index: 200;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
  text-decoration: none;
  transition: all var(--transition);
}
.whatsapp-float:hover {
  background: #128C7E;
  transform: scale(1.1);
  color: #fff;
}
.whatsapp-float svg { width: 28px; height: 28px; }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-block { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    padding: var(--sp-4);
    box-shadow: var(--shadow-md);
    gap: var(--sp-1);
  }
  .nav-links.open + .nav-cta { display: flex; }

  .grid-2, .grid-3, .split-block { grid-template-columns: 1fr; }
  .split-block.reverse { direction: ltr; }

  .hero { min-height: 500px; }
  .hero h1 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }

  .section { padding-block: var(--sp-16); }

  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--sp-8); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-actions { flex-direction: column; align-items: center; }

  .proof-bar { gap: var(--sp-4); }
  .grid-4 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding-inline: var(--sp-4); }
  .form-card { padding: var(--sp-6); }
}