/* =============================================================
   DESIGNER TINTING — Design tokens
   ============================================================= */
:root {
  /* Color */
  --black:        #0A0906;
  --charcoal:      #14130F;
  --charcoal-2:    #1D1B15;
  --hairline:      #2C2A22;
  --offwhite:      #F4EFE4;
  --cream:         #E7E0D0;
  --muted:         #9C9484;
  --gold:          #C9A46B;
  --gold-bright:   #DDBD86;
  --gold-dim:      #8B7248;

  /* Type */
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Layout */
  --max-width: 1180px;
  --edge: clamp(20px, 5vw, 64px);
  --radius-sm: 4px;
  --radius-md: 8px;

  /* Motion */
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* =============================================================
   Reset
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}
body {
  margin: 0;
  background: var(--black);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  position: relative;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; margin: 0; color: var(--offwhite); }
p { margin: 0; }
svg { fill: none; stroke: currentColor; stroke-width: 1.5; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--gold); color: var(--black); padding: 12px 20px;
  font-weight: 700;
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* =============================================================
   Utility
   ============================================================= */
.accent-text { color: var(--gold); }
.fine-print { font-size: 13px; color: var(--muted); margin-top: 12px; }

.section-title {
  font-size: clamp(28px, 4.5vw, 42px);
  text-align: center;
  margin: 0 auto 12px;
  max-width: 720px;
}
.section-sub {
  text-align: center;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto 40px;
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
  white-space: nowrap;
}
.btn--gold {
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  color: var(--black);
}
.btn--gold:hover { background: var(--gold-bright); box-shadow: 0 8px 24px -8px rgba(201,164,107,0.55); transform: translateY(-1px); }
.btn--gold:active { transform: translateY(0); }
.btn--lg { padding: 18px 40px; font-size: 15px; }
.btn--block { width: 100%; }

/* =============================================================
   Header / Nav
   ============================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 9, 6, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px var(--edge);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo { display: flex; flex-direction: column; line-height: 1; }
.nav__logo-main {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.12em;
  color: var(--offwhite);
}
.nav__logo-sub {
  font-size: 9px;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin-top: 4px;
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 110;
}
.nav__toggle span {
  width: 22px; height: 1.5px; background: var(--offwhite);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__menu {
  position: fixed;
  top: 0;
  left: 30%;
  right: 0;
  height: 100svh;
  background: var(--black);
  border-left: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 32px;
  padding: 0 var(--edge);
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
  z-index: 105;
}
.nav__menu.is-open { transform: translateX(0); }
.nav__links { display: flex; flex-direction: column; gap: 24px; }
.nav__link {
  font-size: 22px;
  font-family: var(--font-display);
  color: var(--offwhite);
}
.nav__link:hover { color: var(--gold); }
.nav__cta { align-self: flex-start; }

@media (min-width: 860px) {
  .nav__toggle { display: none; }
  .nav__menu {
    position: static;
    top: auto; left: auto; right: auto; height: auto;
    background: none;
    border: none;
    flex-direction: row;
    align-items: center;
    gap: 40px;
    padding: 0;
    transform: none;
  }
  .nav__links { flex-direction: row; gap: 36px; }
  .nav__link { font-size: 14px; font-family: var(--font-body); font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; }
  .nav__cta { padding: 12px 24px; font-size: 12px; }
}

/* =============================================================
   Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__img { width: 100%; height: 100%; object-fit: cover; object-position: 75% center; }
.hero__scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(0deg, rgba(10,9,6,0.98) 0%, rgba(10,9,6,0.75) 34%, rgba(10,9,6,0.25) 62%, rgba(10,9,6,0.55) 100%),
    linear-gradient(90deg, rgba(10,9,6,0.65) 0%, rgba(10,9,6,0.05) 55%);
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 140px var(--edge) 72px;
  width: 100%;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--gold-dim);
  color: var(--gold-bright);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero__headline {
  font-size: clamp(38px, 8vw, 66px);
  line-height: 1.05;
  max-width: 15ch;
  margin-bottom: 20px;
}
.hero__sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--cream);
  max-width: 40ch;
  margin-bottom: 6px;
}
.hero__sub--emph { margin-bottom: 28px; color: var(--offwhite); }
.hero__content .fine-print { margin-top: 14px; }

@media (min-width: 640px) {
  .hero__img { object-position: 70% center; }
}

/* =============================================================
   Benefits
   ============================================================= */
.benefits { padding: 56px var(--edge); border-bottom: 1px solid var(--hairline); }
.benefits__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 24px;
}
.benefit__icon {
  display: inline-flex;
  width: 40px; height: 40px;
  color: var(--gold);
  margin-bottom: 14px;
}
.benefit__icon svg { width: 100%; height: 100%; }
.benefit h3 { font-size: 16px; margin-bottom: 6px; letter-spacing: 0.01em; }
.benefit p { font-size: 13.5px; color: var(--muted); line-height: 1.5; }

@media (min-width: 720px) {
  .benefits__grid { grid-template-columns: repeat(4, 1fr); gap: 32px; }
}

/* =============================================================
   Carbon vs Ceramic
   ============================================================= */
.compare { padding: 88px var(--edge); background: var(--charcoal); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.compare__grid {
  max-width: var(--max-width);
  margin: 0 auto 32px;
  display: grid;
  gap: 20px;
}
.compare-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  background: var(--charcoal-2);
}
.compare-card--gold { border-color: var(--gold-dim); }
.compare-card__title { font-size: 24px; margin-bottom: 4px; }
.compare-card--gold .compare-card__title { color: var(--gold-bright); }
.compare-card__tagline { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.compare-card__list li {
  font-size: 14.5px;
  padding: 10px 0;
  border-top: 1px solid var(--hairline);
  position: relative;
  padding-left: 20px;
}
.compare-card__list li::before {
  content: "";
  position: absolute; left: 0; top: 17px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
}
.compare__helper { text-align: center; color: var(--muted); font-size: 14px; max-width: 480px; margin: 0 auto; }

@media (min-width: 720px) {
  .compare__grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}

/* =============================================================
   Pricing
   ============================================================= */
.pricing { padding: 88px var(--edge); }
.pricing__grid {
  max-width: var(--max-width);
  margin: 0 auto 28px;
  display: grid;
  gap: 20px;
}
.price-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.price-card--gold { border-color: var(--gold-dim); }
.price-card__header {
  padding: 28px 28px 20px;
  text-align: center;
  border-bottom: 1px solid var(--hairline);
}
.price-card__header h3 { font-size: 26px; margin-bottom: 4px; }
.price-card--gold .price-card__header h3 { color: var(--gold-bright); }
.price-card__header p { color: var(--muted); font-size: 13.5px; }
.price-card__promo-badge {
  display: inline-block;
  margin-top: 14px;
  padding: 5px 14px;
  border: 1px solid var(--gold-dim);
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-bright);
}
.price-card__list { padding: 8px 28px 24px; }
.price-card__list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 15px;
}
.price-card__list li:last-child { border-bottom: none; }
.price-card__amount { display: inline-flex; align-items: baseline; gap: 8px; }
.price-card__was {
  font-family: var(--font-body);
  font-size: 12.5px;
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--hairline);
  font-weight: 500;
}
.price-card__now { font-family: var(--font-display); font-size: 18px; color: var(--gold); }

.pricing__note {
  text-align: center;
  color: var(--gold-bright);
  font-size: 14px;
  margin-bottom: 36px;
  letter-spacing: 0.02em;
}
.pricing__cta-wrap { text-align: center; }

@media (min-width: 720px) {
  .pricing__grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}

/* =============================================================
   Gallery
   ============================================================= */
.gallery { padding: 88px var(--edge); background: var(--charcoal); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.gallery__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.gallery__item {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--hairline);
  display: block;
}
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.gallery__item:hover img { transform: scale(1.05); }
.gallery__item--cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  background: var(--charcoal-2);
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--offwhite);
  padding: 20px;
}
.gallery__item-cta-link {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 1px solid var(--gold-dim);
  padding-bottom: 2px;
}

@media (min-width: 640px) {
  .gallery__grid { grid-template-columns: repeat(3, 1fr); }
}

.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(10,9,6,0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.lightbox.is-open { display: flex; }
.lightbox__img { max-width: 100%; max-height: 88vh; border-radius: var(--radius-sm); }
.lightbox__close {
  position: absolute; top: 20px; right: 24px;
  font-size: 20px; color: var(--offwhite);
  width: 44px; height: 44px;
}

/* =============================================================
   Why
   ============================================================= */
.why { padding: 88px var(--edge); }
.why__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 32px;
}
.why__icon { display: inline-flex; width: 36px; height: 36px; color: var(--gold); margin-bottom: 16px; }
.why__icon svg { width: 100%; height: 100%; }
.why__item h3 { font-size: 17px; margin-bottom: 8px; }
.why__item p { font-size: 14px; color: var(--muted); }

@media (min-width: 720px) {
  .why__grid { grid-template-columns: repeat(4, 1fr); }
}

/* =============================================================
   How it works
   ============================================================= */
.how { padding: 88px var(--edge); background: var(--charcoal); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.how__grid {
  max-width: var(--max-width);
  margin: 0 auto 44px;
  display: grid;
  gap: 36px;
  counter-reset: step;
}
.how__num {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--gold);
  border: 1px solid var(--gold-dim);
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.how__step h3 { font-size: 17px; margin-bottom: 8px; }
.how__step p { font-size: 14px; color: var(--muted); }
.how__cta-wrap { text-align: center; }

@media (min-width: 720px) {
  .how__grid { grid-template-columns: repeat(4, 1fr); }
}

/* =============================================================
   Reviews
   ============================================================= */
.reviews { padding: 88px var(--edge); }
.reviews__rating { text-align: center; color: var(--gold); margin-bottom: 24px; letter-spacing: 0.08em; }
.reviews__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 20px;
}
.review-card {
  margin: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  background: var(--charcoal-2);
}
.review-card p { font-size: 14.5px; color: var(--cream); line-height: 1.6; margin-bottom: 16px; }
.review-card__stars { display: block; color: var(--gold); letter-spacing: 2px; font-size: 13px; margin-bottom: 12px; }
.review-card footer { font-size: 12px; color: var(--muted); }

@media (min-width: 720px) {
  .reviews__grid { grid-template-columns: repeat(3, 1fr); }
}

/* =============================================================
   FAQ
   ============================================================= */
.faq { padding: 88px var(--edge) 120px; }
.faq__list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--hairline); }
.faq-item h3 { margin: 0; }
.faq-item__trigger {
  width: 100%;
  text-align: left;
  padding: 22px 32px 22px 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--offwhite);
  position: relative;
}
.faq-item__trigger::after {
  content: "+";
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--gold);
  transition: transform 0.25s var(--ease);
}
.faq-item__trigger[aria-expanded="true"]::after { transform: translateY(-50%) rotate(45deg); }
.faq-item__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease);
}
.faq-item__panel p { padding-bottom: 22px; color: var(--muted); font-size: 14.5px; max-width: 60ch; line-height: 1.6; }

/* =============================================================
   Final CTA
   ============================================================= */
.final-cta {
  padding: 100px var(--edge) 120px;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(201,164,107,0.10), transparent 60%),
    var(--black);
  border-top: 1px solid var(--hairline);
}
.final-cta__headline { font-size: clamp(30px, 5vw, 46px); margin-bottom: 16px; }
.final-cta__sub { color: var(--cream); font-size: 15px; margin-bottom: 4px; }
.final-cta .btn { margin-top: 28px; }

/* =============================================================
   Footer
   ============================================================= */
.site-footer { padding: 56px var(--edge) 140px; border-top: 1px solid var(--hairline); }
.site-footer__top {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 24px;
}
.site-footer__brand .nav__logo-main { font-size: 18px; }
.site-footer__links { display: flex; gap: 24px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.site-footer__links a:hover { color: var(--gold); }
.site-footer__info { max-width: var(--max-width); margin: 0 auto; font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; margin-bottom: 20px; }
.site-footer__info a:hover { color: var(--gold); }
.site-footer__legal { max-width: var(--max-width); margin: 0 auto; font-size: 12px; color: var(--muted); opacity: 0.7; }

@media (min-width: 720px) {
  .site-footer__top { flex-direction: row; justify-content: space-between; align-items: center; }
}

/* =============================================================
   Sticky mobile CTA
   ============================================================= */
.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  padding: 12px var(--edge) calc(12px + env(safe-area-inset-bottom));
  background: rgba(10,9,6,0.92);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--hairline);
  transform: translateY(0);
  transition: transform 0.3s var(--ease);
}
.sticky-cta.is-hidden { transform: translateY(100%); }
.sticky-cta .btn { padding: 14px 24px; font-size: 13px; }

@media (min-width: 860px) {
  .sticky-cta { display: none; }
}