/* ==========================================================================
   ÓPTICA CENTRAL — Design System
   ========================================================================== */

:root {
  /* Color */
  --color-ink: #0c0c0b;
  --color-ink-2: #171613;
  --color-paper: #f3f0e9;
  --color-paper-dim: #e9e4d8;
  --color-sand: #dcd2c2;
  --color-champagne: #b9a78c;
  --color-brand: #e2872e;
  --color-accent: #8a5720;
  --color-muted: #6f6a5c;
  --color-muted-on-dark: #b8b3a4;
  --color-border: rgba(12, 12, 11, 0.12);
  --color-border-on-dark: rgba(243, 240, 233, 0.16);
  --color-whatsapp: #188046;

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

  /* Layout */
  --container: 1220px;
  --container-narrow: 760px;
  --radius: 3px;
  --radius-md: 6px;

  /* Space */
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1.25rem;
  --space-md: 2rem;
  --space-lg: 3.5rem;
  --space-xl: 6rem;
  --space-2xl: 9rem;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@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;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, address { margin: 0; }
address { font-style: normal; }
button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(243, 240, 233, 0.35);
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--color-ink);
  color: var(--color-paper);
  padding: 0.9em 1.4em;
  border-radius: var(--radius);
}
.skip-link:focus {
  left: var(--space-sm);
  top: var(--space-sm);
}

/* ==========================================================================
   Type scale
   ========================================================================== */

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-xs);
}
.eyebrow--center { text-align: center; }
.eyebrow--on-dark { color: var(--color-brand); }

.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 5.5vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-sm);
}
.section-title--center { text-align: center; margin-left: auto; margin-right: auto; }
.section-title--on-dark { color: var(--color-paper); }

.body-lg {
  font-size: clamp(1rem, 2.4vw, 1.15rem);
  line-height: 1.6;
  color: var(--color-muted);
  max-width: 46ch;
  margin: 0 0 var(--space-sm);
}
.body-lg--on-dark { color: var(--color-muted-on-dark); }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.95em 1.7em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
  min-height: 48px;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }

.btn--primary {
  background: var(--color-ink);
  color: var(--color-paper);
}
.btn--primary:hover { background: var(--color-ink-2); }

.btn--outline {
  background: transparent;
  border-color: currentColor;
  color: var(--color-ink);
}
.btn--outline:hover { background: var(--color-ink); color: var(--color-paper); }

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  padding-left: 0.4em;
  padding-right: 0.4em;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--color-border);
}

.btn--small { min-height: 40px; padding: 0.6em 1.3em; font-size: 0.85rem; }
.btn--large { min-height: 56px; padding: 1.1em 2.2em; font-size: 1.05rem; }

/* ==========================================================================
   Reveal on scroll (progressive enhancement)
   ========================================================================== */

[data-reveal] { opacity: 1; transform: none; }
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  html.js [data-reveal] { opacity: 1; transform: none; }
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding-top: env(safe-area-inset-top);
  transition: background-color 0.35s var(--ease), backdrop-filter 0.35s var(--ease), border-color 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(12, 12, 11, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--color-border-on-dark);
}

.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.9rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-paper);
  margin-right: auto;
}

.site-header__logo-mark {
  width: 30px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-brand);
}

.site-header__logo-text {
  font-family: var(--font-body);
  font-size: clamp(0.92rem, 4vw, 1.05rem);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.site-header__logo-text span { font-weight: 400; color: var(--color-paper); }
.site-header__logo-text b { font-weight: 800; color: var(--color-brand); }

@media (min-width: 400px) {
  .site-header__inner { padding: 0.9rem var(--space-sm); gap: var(--space-md); }
}

.site-header__nav {
  display: none;
}
.site-header__nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-paper);
  margin-left: var(--space-md);
  transition: opacity 0.3s var(--ease);
}
.site-header__nav a:hover { opacity: 0.7; }

.site-header__cta {
  border: 1px solid var(--color-paper);
  color: var(--color-paper);
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease);
}
.site-header__cta:hover { background: var(--color-paper); color: var(--color-ink); }

.site-header__menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 10px 6px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}
.site-header__menu-btn span {
  width: 20px;
  height: 1.5px;
  background: var(--color-paper);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.site-header__menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.site-header__menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.site-header__menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  background: rgba(12, 12, 11, 0.96);
  backdrop-filter: blur(14px);
  padding: var(--space-xs) var(--space-sm) var(--space-md);
  display: flex;
  flex-direction: column;
}
.mobile-nav a {
  color: var(--color-paper);
  font-size: 1.1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border-on-dark);
}
.mobile-nav[hidden] { display: none; }

@media (min-width: 860px) {
  .site-header__nav { display: block; }
  .site-header__menu-btn { display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: var(--color-paper);
  background: linear-gradient(160deg, #17160f 0%, #0c0c0b 55%, #0a0a09 100%);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #17160f 0%, #0c0c0b 55%, #0a0a09 100%);
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0;
  transition: opacity 1s var(--ease);
}
.hero__video.is-loaded { opacity: 0.92; }
@media (prefers-reduced-motion: reduce) {
  .hero__video { display: none; }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(9, 9, 8, 0.92) 0%, rgba(9, 9, 8, 0.55) 42%, rgba(9, 9, 8, 0.25) 70%, rgba(9,9,8,0.5) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-sm) var(--space-xl);
  padding-top: calc(var(--space-2xl) + env(safe-area-inset-top));
}

.hero .eyebrow { color: var(--color-brand); }

.hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.1rem, 8vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-sm);
  max-width: 16ch;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  color: var(--color-muted-on-dark);
  max-width: 42ch;
  margin: 0 0 var(--space-md);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-sm);
  margin-bottom: var(--space-sm);
}
.hero .btn--primary { background: var(--color-paper); color: var(--color-ink); }
.hero .btn--primary:hover { background: var(--color-sand); }
.hero .btn--ghost { color: var(--color-paper); text-decoration-color: var(--color-border-on-dark); }

.hero__proof {
  font-size: 0.85rem;
  color: var(--color-muted-on-dark);
  margin: 0;
}

.hero__scroll-cue {
  position: absolute;
  right: var(--space-sm);
  bottom: var(--space-md);
  z-index: 2;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-muted-on-dark);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
.hero__scroll-cue svg { writing-mode: horizontal-tb; animation: bob 2.2s ease-in-out infinite; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }
@media (prefers-reduced-motion: reduce) { .hero__scroll-cue svg { animation: none; } }

@media (min-width: 700px) {
  .hero__scroll-cue { display: flex; }
}

/* ==========================================================================
   Brand strip / marquee
   ========================================================================== */

.brand-strip {
  padding: var(--space-xl) var(--space-sm);
  max-width: var(--container);
  margin: 0 auto;
  text-align: center;
}
.brand-strip .section-title { max-width: 30ch; margin-left: auto; margin-right: auto; }

.marquee {
  overflow: hidden;
  margin: var(--space-lg) 0 var(--space-md);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 4vw, 2.1rem);
  font-weight: 500;
  padding-right: 1.5rem;
  animation: marquee 52s linear infinite;
}
.marquee__track span:nth-child(even) { color: var(--color-champagne); font-size: 0.9em; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-100%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } .marquee { overflow-x: auto; } }

.brand-strip__note {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Product showcase (video editorial)
   ========================================================================== */

.showcase {
  display: grid;
  grid-template-columns: 1fr;
}

.showcase__media {
  aspect-ratio: 4 / 5;
  background: linear-gradient(160deg, #201f19, #0c0c0b);
  position: relative;
  overflow: hidden;
}
.showcase__video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s var(--ease), transform 8s var(--ease);
  transform: scale(1.04);
}
.showcase__video.is-loaded { opacity: 1; }
.showcase__media.is-in-view .showcase__video { transform: scale(1); }

.showcase__content {
  padding: var(--space-xl) var(--space-sm);
  max-width: var(--container-narrow);
}

@media (min-width: 860px) {
  .showcase { grid-template-columns: 1.1fr 0.9fr; align-items: center; min-height: 90vh; }
  .showcase__media { aspect-ratio: auto; height: 100%; min-height: 90vh; }
  .showcase__content { padding: var(--space-xl); }
}

/* ==========================================================================
   Lens tech
   ========================================================================== */

.lens-tech {
  padding: var(--space-xl) var(--space-sm);
  max-width: var(--container);
  margin: 0 auto;
}
.lens-tech__intro { max-width: var(--container-narrow); margin-bottom: var(--space-lg); }

.lens-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
}
.lens-card {
  background: var(--color-paper);
  padding: var(--space-md) var(--space-sm);
}
.lens-card__index {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-2xs);
}
.lens-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  margin-bottom: var(--space-2xs);
}
.lens-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
  max-width: 40ch;
}
.lens-card a {
  font-weight: 600;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: border-color 0.25s var(--ease), opacity 0.25s var(--ease);
}
.lens-card a:hover { border-color: var(--color-ink); }

@media (min-width: 640px) {
  .lens-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1000px) {
  .lens-grid { grid-template-columns: repeat(3, 1fr); }
}

.lens-brands {
  text-align: center;
  padding: var(--space-lg) var(--space-sm);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
}
.lens-brands__label {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}
.lens-brands__list {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  margin-bottom: var(--space-xs);
}
.lens-brands__note {
  font-size: 0.85rem;
  color: var(--color-muted);
  max-width: 52ch;
  margin: 0 auto;
}

.prescription-cta {
  text-align: center;
  background: var(--color-sand);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-sm);
}
.prescription-cta h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 4vw, 2rem);
  margin-bottom: var(--space-2xs);
}
.prescription-cta p {
  color: var(--color-ink);
  opacity: 0.72;
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Precision / exploded view
   ========================================================================== */

.precision {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: flex-end;
  color: var(--color-paper);
  overflow: hidden;
  background: linear-gradient(160deg, #17160f, #0c0c0b);
}
.precision__media { position: absolute; inset: 0; }
.precision__video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0;
  transition: opacity 1s var(--ease);
}
.precision__video.is-loaded { opacity: 0.85; }
.precision__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(9,9,8,0.92) 10%, rgba(9,9,8,0.35) 60%, rgba(9,9,8,0.55) 100%);
}
.precision__content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-sm);
  width: 100%;
}
.precision__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: var(--space-sm);
}
.precision__tags li {
  border: 1px solid var(--color-border-on-dark);
  border-radius: 999px;
  padding: 0.45em 1em;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--color-paper);
}

/* ==========================================================================
   Story / 40 years
   ========================================================================== */

.story {
  position: relative;
  padding: var(--space-xl) var(--space-sm);
  max-width: var(--container);
  margin: 0 auto;
  overflow: hidden;
}
.story__number {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(7rem, 32vw, 15rem);
  line-height: 0.8;
  color: var(--color-sand);
  position: absolute;
  top: -0.05em;
  right: -0.03em;
  z-index: 0;
  user-select: none;
  pointer-events: none;
}
.story__content { position: relative; z-index: 1; max-width: var(--container-narrow); padding-top: clamp(3rem, 18vw, 6rem); }

/* ==========================================================================
   Chooser
   ========================================================================== */

.chooser {
  position: relative;
  padding: var(--space-xl) var(--space-sm);
  max-width: var(--container);
  margin: 0 auto;
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: var(--radius-md);
  overflow: hidden;
  isolation: isolate;
}
.chooser__media { position: absolute; inset: 0; z-index: 0; }
.chooser__video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 35%;
  opacity: 0;
  transition: opacity 1s var(--ease);
}
.chooser__video.is-loaded { opacity: 0.28; }
.chooser__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(12,12,11,0.88) 0%, rgba(12,12,11,0.94) 60%, rgba(12,12,11,0.98) 100%);
}
.chooser__intro,
.chooser__steps,
.chooser > .btn { position: relative; z-index: 1; }
.chooser__intro { max-width: var(--container-narrow); margin-bottom: var(--space-lg); }
.chooser .eyebrow { color: var(--color-brand); }
.chooser .section-title { color: var(--color-paper); }
.chooser .body-lg { color: var(--color-muted-on-dark); }

.chooser__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.chooser__index {
  display: block;
  font-family: var(--font-display);
  color: var(--color-brand);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}
.chooser__steps h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}
.chooser__steps p {
  color: var(--color-muted-on-dark);
  font-size: 0.92rem;
  max-width: 32ch;
}
.chooser .btn--primary { background: var(--color-paper); color: var(--color-ink); }
.chooser .btn--primary:hover { background: var(--color-sand); }

@media (min-width: 700px) {
  .chooser__steps { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   Store / location
   ========================================================================== */

.store {
  position: relative;
  padding: var(--space-xl) var(--space-sm);
  max-width: var(--container);
  margin: 0 auto;
  overflow: hidden;
}
.store__number {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(6rem, 28vw, 13rem);
  line-height: 0.8;
  color: var(--color-sand);
  position: absolute;
  bottom: -0.1em;
  left: -0.02em;
  z-index: 0;
  user-select: none;
  pointer-events: none;
}
.store__content { position: relative; z-index: 1; max-width: var(--container-narrow); }
.store__address {
  display: block;
  margin: var(--space-md) 0;
  font-size: 1rem;
  line-height: 1.7;
}
.store__address a { text-decoration: underline; text-underline-offset: 3px; }
.store__actions { display: flex; flex-wrap: wrap; gap: var(--space-xs); }

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq {
  padding: var(--space-xl) var(--space-sm);
  max-width: var(--container-narrow);
  margin: 0 auto;
}
.faq__list { border-top: 1px solid var(--color-border); }
.faq details {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform 0.25s var(--ease);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p {
  color: var(--color-muted);
  margin-top: var(--space-xs);
  max-width: 60ch;
}

/* ==========================================================================
   Final CTA
   ========================================================================== */

.final-cta {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-md);
  padding: var(--space-xl) var(--space-sm);
  background: var(--color-ink);
  color: var(--color-paper);
}
.final-cta__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.1;
  max-width: 16ch;
}
.final-cta .btn--primary { background: var(--color-paper); color: var(--color-ink); }
.final-cta .btn--primary:hover { background: var(--color-sand); }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-ink);
  color: var(--color-muted-on-dark);
  padding: var(--space-lg) var(--space-sm) calc(var(--space-lg) + 70px);
}
.site-footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  gap: var(--space-lg);
}
.site-footer__logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 var(--space-sm);
}
.site-footer__logo-mark {
  width: 42px;
  height: 25px;
  flex-shrink: 0;
  color: var(--color-brand);
}
.site-footer__logo-text {
  font-family: var(--font-body);
  font-size: 1.3rem;
  letter-spacing: -0.01em;
}
.site-footer__logo-text span { font-weight: 400; color: var(--color-paper); }
.site-footer__logo-text b { font-weight: 800; color: var(--color-brand); }
.site-footer__brand address { line-height: 1.8; }
.site-footer__brand p { margin-top: 0.4rem; }
.site-footer__brand a:hover { color: var(--color-paper); }

.site-footer__nav { display: flex; flex-direction: column; gap: 0.9rem; }
.site-footer__nav a:hover { color: var(--color-paper); }

.site-footer__bottom {
  max-width: var(--container);
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-on-dark);
  font-size: 0.8rem;
}

@media (min-width: 700px) {
  .site-footer { padding-bottom: var(--space-lg); }
  .site-footer__inner { grid-template-columns: 1.3fr 1fr; }
}

/* ==========================================================================
   Sticky WhatsApp CTA (mobile)
   ========================================================================== */

.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  padding: 0.6rem var(--space-sm) calc(0.6rem + env(safe-area-inset-bottom));
  background: rgba(12, 12, 11, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border-on-dark);
}
.sticky-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  background: var(--color-whatsapp);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius);
  transition: filter 0.25s var(--ease);
}
.sticky-cta a:active { filter: brightness(0.92); }

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

/* ==========================================================================
   Utility
   ========================================================================== */

@media (prefers-contrast: more) {
  :root { --color-muted: #333; --color-muted-on-dark: #eee; }
}

@media print {
  .site-header, .sticky-cta, .hero__video, video { display: none !important; }
  body { color: #000; background: #fff; }
}