/* ==========================================================================
   LUMIÈRE HAIR STUDIO — stylesheet
   Your Hair. Your Style. Your Confidence.
   Table of contents:
     1. Fonts
     2. Reset
     3. Design tokens
     4. Base / typography
     5. Layout helpers
     6. Accessibility helpers
     7. Buttons
     8. Preloader / brand intro
     9. Header / navigation
     10. Mobile menu
     11. Hero
     12. Services
     13. Why choose us
     14. Gallery
     15. About
     16. Contact
     17. Footer
     18. Mobile WhatsApp bar
     19. Scroll reveal
     20. Responsive
   ========================================================================== */

/* 1. Fonts
   ========================================================================== */
/* Loaded via <link> in <head> for performance (Cormorant Garamond + DM Sans) */

/* 2. Reset
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
  padding: 0;
}

svg {
  display: block;
}

/* 3. Design tokens
   ========================================================================== */
:root {
  /* Brand colour palette */
  --lu-cream: #f7f3ee;
  --lu-cream-alt: #efe7da;
  --lu-paper: #fffdfa;
  --lu-ink: #24211f;
  --lu-ink-soft: #2e2a27;
  --lu-muted: #756d66;
  --lu-accent: #7d2634;
  --lu-accent-dark: #5c1c27;
  --lu-accent-light: #e3b8bd;
  --lu-line: #e2d8c8;
  --lu-line-dark: #3c372f;
  --lu-white: #ffffff;

  /* Semantic tokens */
  --color-bg: var(--lu-cream);
  --color-bg-alt: var(--lu-cream-alt);
  --color-bg-paper: var(--lu-paper);
  --color-text: var(--lu-ink);
  --color-text-muted: var(--lu-muted);
  --color-border: var(--lu-line);
  --color-accent: var(--lu-accent);
  --color-inverse-bg: var(--lu-ink);
  --color-inverse-bg-soft: var(--lu-ink-soft);
  --color-inverse-text: var(--lu-cream);
  --color-inverse-line: var(--lu-line-dark);

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  /* Fluid type scale */
  --step-eyebrow: 0.76rem;
  --step-body: clamp(0.96rem, 0.3vw + 0.89rem, 1.08rem);
  --step-h1: clamp(2.75rem, 5.4vw + 1.3rem, 4.75rem);
  --step-h2: clamp(2rem, 2.4vw + 1.25rem, 3.5rem);
  --step-h3: clamp(1.3rem, 0.9vw + 1.05rem, 1.7rem);
  --step-h4: clamp(1.05rem, 0.35vw + 0.95rem, 1.2rem);

  /* Layout */
  --container-max: 1320px;
  --container-pad: clamp(1.25rem, 4vw, 3rem);
  --section-py: clamp(4rem, 7vw, 8rem);
  --section-py-sm: clamp(2.5rem, 4vw, 4rem);
  --radius-sm: 3px;
  --radius-md: 4px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 260ms;
  --dur-med: 450ms;
  --dur-slow: 700ms;

  /* Elevation */
  --shadow-card: 0 1px 2px rgba(36, 33, 31, 0.05), 0 14px 30px -20px rgba(36, 33, 31, 0.28);
  --shadow-pop: 0 30px 70px -24px rgba(24, 20, 14, 0.32);

  --header-h: 82px;
}

/* 4. Base / typography
   ========================================================================== */
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--step-body);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.005em;
  color: var(--color-text);
}

h1 {
  font-size: var(--step-h1);
}

h2 {
  font-size: var(--step-h2);
}

h3 {
  font-size: var(--step-h3);
}

h4 {
  font-size: var(--step-h4);
  font-weight: 600;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

p {
  color: var(--color-text);
}

.lead {
  font-size: clamp(1.02rem, 0.4vw + 0.94rem, 1.2rem);
  color: var(--color-text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65em;
  font-family: var(--font-sans);
  font-size: var(--step-eyebrow);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-dark, var(--lu-accent-dark));
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 1.7em;
  height: 1px;
  background: currentColor;
}

.section--dark .eyebrow {
  color: var(--lu-accent-light);
}

/* 5. Layout helpers
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

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

.section--tight {
  padding-block: var(--section-py-sm);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--paper {
  background: var(--color-bg-paper);
}

.section--dark {
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text);
}

.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark p {
  color: inherit;
}

.section-head {
  max-width: 40rem;
  margin-bottom: clamp(2.25rem, 4vw, 3.75rem);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head h2 {
  margin-top: 0.6rem;
}

.section-head p {
  margin-top: 1rem;
  color: var(--color-text-muted);
}

.section--dark .section-head p {
  color: rgba(247, 243, 238, 0.72);
}

.link-underline {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid currentColor;
  transition: opacity var(--dur-fast) var(--ease);
}

.link-underline:hover {
  opacity: 0.6;
}

/* 6. Accessibility helpers
   ========================================================================== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 2100;
  background: var(--lu-ink);
  color: var(--lu-cream);
  padding: 0.85rem 1.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: top var(--dur-fast) var(--ease);
}

.skip-link:focus {
  top: 1rem;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--lu-accent-dark);
  outline-offset: 3px;
}

/* 7. Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  white-space: nowrap;
}

.btn svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--lu-ink);
  color: var(--lu-cream);
  border-color: var(--lu-ink);
}

.btn--primary:hover {
  background: var(--lu-ink-soft);
  border-color: var(--lu-accent);
}

.btn--accent {
  background: var(--lu-accent);
  color: var(--lu-cream);
  border-color: var(--lu-accent);
}

.btn--accent:hover {
  background: var(--lu-accent-dark);
  border-color: var(--lu-accent-dark);
  color: var(--lu-white);
}

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

.btn--outline:hover {
  border-color: var(--lu-ink);
}

.btn--ghost-light {
  background: transparent;
  color: var(--lu-cream);
  border-color: rgba(247, 243, 238, 0.5);
}

.btn--ghost-light:hover {
  background: var(--lu-cream);
  color: var(--lu-ink);
  border-color: var(--lu-cream);
}

.btn--block {
  width: 100%;
}

.btn--sm {
  padding: 0.7rem 1.3rem;
  font-size: 0.78rem;
}

/* 8. Preloader / brand intro
   ========================================================================== */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  transition: opacity 550ms var(--ease), visibility 550ms var(--ease);
}

.preloader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader__inner {
  text-align: center;
  padding-inline: 1.5rem;
  opacity: 0;
  transform: scale(0.98);
  animation: preloader-in 900ms var(--ease) forwards;
  animation-delay: 90ms;
}

@keyframes preloader-in {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.preloader__word {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.1em;
  font-size: clamp(2.1rem, 7vw, 3.75rem);
  color: var(--color-text);
}

.preloader__word--sub {
  margin-top: 0.4rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(0.72rem, 2vw, 0.95rem);
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--color-accent-dark, var(--lu-accent-dark));
}

.preloader__line {
  display: block;
  width: 0;
  height: 1px;
  background: var(--lu-accent);
  margin: 1.6rem auto;
  animation: preloader-line 650ms var(--ease) forwards;
  animation-delay: 520ms;
}

@keyframes preloader-line {
  to {
    width: 64px;
  }
}

.preloader__tagline {
  font-size: clamp(0.78rem, 1.4vw, 0.92rem);
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  opacity: 0;
  animation: preloader-fade 500ms var(--ease) forwards;
  animation-delay: 700ms;
}

@keyframes preloader-fade {
  to {
    opacity: 1;
  }
}

body.preloader-active {
  overflow: hidden;
  height: 100vh;
}

@media (prefers-reduced-motion: reduce) {
  .preloader__inner,
  .preloader__line,
  .preloader__tagline {
    animation: none;
    opacity: 1;
    transform: none;
    width: auto;
  }
  .preloader__line {
    width: 64px;
  }
}

/* 8b. Concept banner
   ========================================================================== */
.concept-banner {
  background: var(--lu-accent);
  color: var(--lu-cream);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  text-align: center;
  padding: 0.6rem 1rem;
}

.concept-banner strong {
  color: var(--lu-white);
}

.concept-banner a {
  color: var(--lu-cream);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.concept-banner .banner-text-short {
  display: none;
}

@media (max-width: 600px) {
  .concept-banner .banner-text-full {
    display: none;
  }
  .concept-banner .banner-text-short {
    display: inline;
  }
}

/* 9. Header / navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  width: 100%;
  padding-block: 1.15rem;
  background: rgba(247, 243, 238, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: padding var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease),
    border-color var(--dur-med) var(--ease);
}

.site-header.is-scrolled {
  padding-block: 0.8rem;
  box-shadow: 0 1px 0 rgba(36, 33, 31, 0.06);
  border-color: var(--lu-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  color: var(--color-text);
}

.logo__mark {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.logo__sub {
  font-family: var(--font-sans);
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent-dark, var(--lu-accent-dark));
  margin-top: 0.2rem;
}

.primary-nav {
  display: none;
  align-items: center;
  gap: clamp(1.25rem, 2vw, 2.1rem);
}

.nav-link {
  position: relative;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-text);
  padding-block: 0.35rem;
  opacity: 0.82;
  transition: opacity var(--dur-fast) var(--ease);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: var(--lu-accent-dark);
  transition: width var(--dur-fast) var(--ease);
}

.nav-link:hover,
.nav-link[aria-current='page'] {
  opacity: 1;
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.header-actions .btn {
  display: none;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--lu-line);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  cursor: pointer;
}

.menu-toggle__box {
  position: relative;
  width: 18px;
  height: 12px;
}

.menu-toggle__box span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.4px;
  background: currentColor;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), top var(--dur-fast) var(--ease);
}

.menu-toggle__box span:nth-child(1) { top: 0; }
.menu-toggle__box span:nth-child(2) { top: 50%; margin-top: -0.7px; }
.menu-toggle__box span:nth-child(3) { top: 100%; margin-top: -1.4px; }

.site-header.is-open .menu-toggle__box span:nth-child(1) {
  top: 50%;
  margin-top: -0.7px;
  transform: rotate(45deg);
}
.site-header.is-open .menu-toggle__box span:nth-child(2) { opacity: 0; }
.site-header.is-open .menu-toggle__box span:nth-child(3) {
  top: 50%;
  margin-top: -0.7px;
  transform: rotate(-45deg);
}

/* 10. Mobile menu
   ========================================================================== */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 850;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem clamp(1.5rem, 6vw, 4rem) 3rem;
  background: var(--lu-ink);
  color: var(--lu-cream);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), visibility var(--dur-med);
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-menu__links a {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 6vw, 2.2rem);
  font-weight: 500;
}

.mobile-menu__foot {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

body.menu-open {
  overflow: hidden;
}

/* 11. Hero
   ========================================================================== */
.hero {
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(2rem, 4vw, 3rem);
  min-height: 85vh;
  display: flex;
  align-items: center;
}

.hero__inner {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
  width: 100%;
}

.hero__eyebrow {
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: var(--step-h1);
}

.hero__sub {
  margin-top: 1.4rem;
  max-width: 30rem;
  font-size: clamp(1rem, 0.4vw + 0.9rem, 1.15rem);
  color: var(--color-text-muted);
}

.hero__actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__media {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 5;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__media::after {
  content: '';
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 0 1px rgba(36, 33, 31, 0.06);
}

/* 12. Services
   ========================================================================== */
.services-feature {
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.services-feature h3 {
  margin-top: 0.6rem;
}

.services-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

.service-card {
  background: transparent;
  border: none;
  border-top: 1px solid var(--color-border);
  border-radius: 0;
  padding: clamp(1.5rem, 3vw, 1.9rem) 0 0;
  transition: border-color var(--dur-med) var(--ease);
}

.service-card:hover {
  border-color: var(--lu-accent);
}

.service-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--lu-accent-dark);
  margin-bottom: 1.2rem;
  transition: border-color var(--dur-med) var(--ease);
}

.service-card:hover .service-card__icon {
  border-color: var(--lu-accent);
}

.service-card__icon svg {
  width: 24px;
  height: 24px;
}

.service-card h3 {
  font-size: 1.35rem;
}

.service-card p {
  margin-top: 0.65rem;
  color: var(--color-text-muted);
  font-size: 0.94rem;
}

/* 13. Why choose us
   ========================================================================== */
.features-grid {
  display: grid;
  gap: clamp(1.75rem, 3vw, 2.5rem);
  grid-template-columns: 1fr;
}

.feature-item {
  display: flex;
  gap: 1.1rem;
}

.feature-item__icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(247, 243, 238, 0.24);
  color: var(--lu-accent-light);
}

.feature-item__icon svg {
  width: 21px;
  height: 21px;
}

.feature-item h3 {
  font-size: 1.15rem;
}

.feature-item p {
  margin-top: 0.4rem;
  font-size: 0.92rem;
  color: rgba(247, 243, 238, 0.72);
}

/* 14. Gallery
   ========================================================================== */
.gallery-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, 1fr);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 3 / 4;
}

.gallery-item--wide {
  aspect-ratio: 4 / 3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item__caption {
  position: absolute;
  left: 0.9rem;
  bottom: 0.8rem;
  z-index: 1;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lu-white);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(24, 20, 14, 0) 55%, rgba(24, 20, 14, 0.55) 100%);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease);
}

.gallery-item:hover::after,
.gallery-item:hover .gallery-item__caption {
  opacity: 1;
  transform: translateY(0);
}

/* 15. About
   ========================================================================== */
.about-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.about__media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.about__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__text p {
  margin-top: 1.15rem;
  color: var(--color-text-muted);
  max-width: 36rem;
}

.about__text h2 {
  margin-top: 0.6rem;
}

/* 16. Contact
   ========================================================================== */
.contact-grid {
  display: grid;
  gap: clamp(2.25rem, 4vw, 3.5rem);
  align-items: start;
}

.contact-head {
  max-width: 32rem;
}

.contact-head p {
  margin-top: 1rem;
  color: rgba(247, 243, 238, 0.72);
}

.contact-actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-block {
  display: flex;
  gap: 1rem;
}

.contact-block__icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(247, 243, 238, 0.24);
  color: var(--lu-accent-light);
}

.contact-block__icon svg {
  width: 19px;
  height: 19px;
}

.contact-block h3 {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lu-accent-light);
  margin-bottom: 0.4rem;
}

.contact-block p {
  color: rgba(247, 243, 238, 0.86);
  line-height: 1.6;
}

/* 17. Footer
   ========================================================================== */
.site-footer {
  background: var(--lu-ink);
  color: rgba(247, 243, 238, 0.72);
  padding-block: clamp(3.25rem, 6vw, 4.5rem) clamp(1.75rem, 3vw, 2.25rem);
}

.footer-top {
  display: grid;
  gap: 2.5rem;
  padding-bottom: clamp(2.25rem, 4vw, 3rem);
  border-bottom: 1px solid rgba(226, 216, 200, 0.14);
}

.footer-brand .logo__mark {
  color: var(--lu-cream);
}

.footer-brand p {
  margin-top: 1rem;
  max-width: 24rem;
  color: rgba(247, 243, 238, 0.6);
  font-size: 0.92rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(226, 216, 200, 0.22);
  color: var(--lu-accent-light);
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.footer-social a:hover {
  border-color: var(--lu-accent-light);
  color: var(--lu-cream);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

.footer-cols {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(2, 1fr);
}

.footer-col h4 {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--lu-accent-light);
  margin-bottom: 1rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-col a {
  font-size: 0.92rem;
  color: rgba(247, 243, 238, 0.72);
  transition: color var(--dur-fast) var(--ease);
}

.footer-col a:hover {
  color: var(--lu-accent-light);
}

.footer-col address,
.footer-col p {
  font-style: normal;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(247, 243, 238, 0.72);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 3vw, 2rem);
  font-size: 0.76rem;
  color: rgba(247, 243, 238, 0.4);
}

/* 18. Mobile WhatsApp bar
   ========================================================================== */
.mobile-whatsapp {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
  z-index: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.9rem 1.25rem;
  background: #25d366;
  color: #0b1a10;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 999px;
  box-shadow: 0 12px 30px -10px rgba(11, 26, 16, 0.55);
  transition: transform var(--dur-fast) var(--ease);
}

.mobile-whatsapp:active {
  transform: translateY(1px);
}

.mobile-whatsapp svg {
  width: 19px;
  height: 19px;
  flex-shrink: 0;
}

body.has-mobile-whatsapp {
  padding-bottom: 76px;
}

/* 19. Scroll reveal
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 900ms var(--ease), transform 900ms var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-group] > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

[data-reveal-group].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-group].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-group].is-visible > *:nth-child(2) { transition-delay: 80ms; }
[data-reveal-group].is-visible > *:nth-child(3) { transition-delay: 160ms; }
[data-reveal-group].is-visible > *:nth-child(4) { transition-delay: 240ms; }
[data-reveal-group].is-visible > *:nth-child(5) { transition-delay: 320ms; }
[data-reveal-group].is-visible > *:nth-child(6) { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal-group] > * {
    opacity: 1;
    transform: none;
  }
}

/* 20. Responsive
   ========================================================================== */
@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-cols {
    grid-template-columns: repeat(3, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 860px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
  }

  .hero__eyebrow {
    margin-bottom: 1.5rem;
  }

  .about-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

@media (min-width: 960px) {
  .primary-nav {
    display: flex;
  }

  .header-actions .btn {
    display: inline-flex;
  }

  .menu-toggle {
    display: none;
  }

  .mobile-whatsapp {
    display: none;
  }

  body.has-mobile-whatsapp {
    padding-bottom: 0;
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-top {
    grid-template-columns: 1.2fr 1.8fr;
  }
}

@media (min-width: 1080px) {
  .gallery-grid {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: minmax(140px, auto);
  }

  .gallery-item {
    grid-column: span 2;
  }

  .gallery-item--wide {
    grid-column: span 3;
  }
}
