:root {
  --color-text: #111111;
  --color-muted: #6b6b6b;
  --color-border: #e5e5e5;
  --color-bg: #ffffff;
  --color-accent: #111111;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

a { color: inherit; }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.site-header__logo img {
  height: 22px;
  width: auto;
}

.site-nav {
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-bottom-color: var(--color-text);
}

/* Hero */
.hero {
  position: relative;
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
}

.hero__overlay {
  background: rgba(0, 0, 0, 0.42);
  padding: 110px 24px;
}

.hero h1 {
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
  text-transform: uppercase;
}

.hero p.tagline {
  font-size: clamp(16px, 2.4vw, 20px);
  max-width: 560px;
  margin: 0 auto 32px;
  opacity: 0.95;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  background: #fff;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 14px;
  border: 2px solid #fff;
  border-radius: 2px;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn:hover { background: transparent; color: #fff; }

.btn--dark {
  background: var(--color-text);
  color: #fff;
  border-color: var(--color-text);
}

.btn--dark:hover { background: #fff; color: var(--color-text); }

/* Sections */
section { padding: 72px 0; }

section.alt { background: #fafafa; }

h2.section-title {
  text-align: center;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 12px;
}

p.section-subtitle {
  text-align: center;
  color: var(--color-muted);
  max-width: 640px;
  margin: 0 auto 48px;
  font-size: 16px;
}

/* 3-step process */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  text-align: center;
}

.step img {
  border-radius: 4px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin-bottom: 20px;
}

.step__number {
  display: inline-block;
  width: 28px;
  height: 28px;
  line-height: 28px;
  border-radius: 50%;
  background: var(--color-text);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 12px;
}

.step h3 {
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 8px;
}

.step p { color: var(--color-muted); font-size: 15px; margin: 0; }

.center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* Sample kit CTA */
.sample-cta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.sample-cta img { border-radius: 4px; }

.sample-cta__copy h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  text-transform: uppercase;
  margin: 0 0 16px;
}

.sample-cta__copy p { color: var(--color-muted); margin: 0 0 24px; font-size: 16px; }

.badge {
  display: inline-block;
  background: #fff3c4;
  color: #6b5300;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: 16px;
}

/* Testimonial */
.testimonial {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.testimonial img { border-radius: 4px; }

.testimonial blockquote {
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  margin: 0 0 16px;
  line-height: 1.35;
}

.testimonial cite {
  font-style: normal;
  color: var(--color-muted);
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* Product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 32px;
}

.product-card {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-card img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  width: 100%;
}

.product-card__body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-card__body h3 {
  font-size: 16px;
  margin: 0 0 6px;
}

.product-card__body p.desc {
  color: var(--color-muted);
  font-size: 14px;
  margin: 0 0 16px;
  flex: 1;
}

.product-card__price {
  font-weight: 700;
  margin-bottom: 14px;
}

.product-card .btn { text-align: center; width: 100%; padding: 12px 0; font-size: 13px; }

.btn--add-to-cart {
  cursor: pointer;
  font: inherit;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Cart modal (painted-door checkout) */
.cart-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.cart-modal {
  position: relative;
  background: var(--color-bg);
  max-width: 420px;
  width: 90%;
  padding: 32px;
  border-radius: 4px;
  text-align: center;
}

.cart-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  color: var(--color-muted);
  padding: 4px;
}

.cart-modal__close:hover { color: var(--color-text); }

.cart-modal p {
  margin: 0 0 24px;
  font-size: 15px;
  color: var(--color-text);
}

.cart-modal__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.note-banner {
  background: #fff3c4;
  color: #6b5300;
  padding: 14px 20px;
  border-radius: 4px;
  font-size: 14px;
  margin-bottom: 40px;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 24px 0;
}

.faq-item h3 {
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 10px;
}

.faq-item p { color: var(--color-muted); margin: 0 0 10px; font-size: 15px; }

.faq-category {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin: 48px 0 8px;
}

.faq-category:first-of-type { margin-top: 0; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 48px 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 13px;
}

.site-footer a { text-decoration: underline; }

.site-footer .footer-links {
  margin-bottom: 12px;
}

.site-footer .footer-links a { margin: 0 10px; text-decoration: none; }

@media (max-width: 800px) {
  .steps { grid-template-columns: 1fr; }
  .sample-cta, .testimonial { grid-template-columns: 1fr; }
  .testimonial img { order: -1; }
}