/* ============================================
   ZİRVE GRANİT — Premium Stone Theme
   Fonts: Bricolage Grotesque · Outfit
   ============================================ */

:root {
  --black: #0f0f0f;
  --charcoal: #1c1c1c;
  --graphite: #2a2a2a;
  --slate: #4a4a4a;
  --stone: #7a7570;
  --stone-light: #a8a29e;
  --cream: #f5f2ed;
  --off-white: #faf9f7;
  --white: #ffffff;

  --gold: #c4a574;
  --gold-light: #d4bc8e;
  --gold-dark: #9a7d4f;

  --text-dark: #141414;
  --text-body: #3d3d3d;
  --text-muted: #6b6b6b;

  --font-display: 'Bricolage Grotesque', sans-serif;
  --font-body: 'Outfit', sans-serif;
  --font-loader: 'Garet', 'Montserrat', sans-serif;

  --header-h: 76px;
  --topbar-h: 38px;
  --site-header-h: calc(var(--topbar-h) + var(--header-h));
  --scroll-offset: calc(var(--site-header-h) + 16px);

  --container: 1280px;
  --section-pad: clamp(72px, 9vw, 120px);
  --radius: 4px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow: 0 12px 40px rgba(0,0,0,0.12);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--off-white);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

section[id] { scroll-margin-top: var(--scroll-offset); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-dark);
}

/* ---- Loader ---- */
body.is-loading { overflow: hidden; }

.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.45s ease, visibility 0.45s ease;
}
.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  animation: loaderIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.loader-logo {
  font-family: var(--font-loader);
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.2em;
  padding-left: 0.2em;
  line-height: 1;
}
.loader-sub {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(0.58rem, 1.4vw, 0.72rem);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.42);
  letter-spacing: 0.55em;
  padding-left: 0.55em;
  line-height: 1;
  text-transform: uppercase;
}
@keyframes loaderIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ---- Site Header ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  transition: box-shadow 0.3s;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.08); }

.top-bar {
  background: var(--charcoal);
  color: rgba(255,255,255,0.75);
  font-size: 0.72rem;
  padding: 0.5rem 0;
  letter-spacing: 0.04em;
}
.top-bar .container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.top-bar-contact {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.top-bar-sep {
  color: rgba(255,255,255,0.35);
  user-select: none;
}
.top-bar a { color: rgba(255,255,255,0.85); transition: color 0.2s; }
.top-bar a:hover { color: var(--gold-light); }
.top-bar-owner {
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.header { background: var(--white); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  line-height: 1.1;
}

.logo-main {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--charcoal);
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
}
.logo-sub {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-top: 0.35rem;
  display: block;
}

.nav-desktop { display: flex; gap: 0.15rem; }
.nav-desktop a {
  padding: 0.45rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-body);
  transition: color 0.2s;
}
.nav-desktop a:hover,
.nav-desktop a.active { color: var(--gold-dark); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--ease);
}
.btn-gold {
  background: var(--gold);
  color: var(--charcoal);
}
.btn-gold:hover {
  background: var(--gold-dark);
  color: var(--white);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--white);
  color: var(--white);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--charcoal);
}
.btn-dark {
  background: var(--charcoal);
  color: var(--white);
}
.btn-dark:hover { background: var(--graphite); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--charcoal);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: var(--white);
  padding: var(--site-header-h) 2rem 2rem;
  transform: translateX(100%);
  transition: transform 0.45s var(--ease);
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
  display: block;
  padding: 1rem 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  border-bottom: 1px solid var(--cream);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--site-header-h);
  box-sizing: border-box;
  overflow: hidden;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-color: var(--charcoal);
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero-slide-bg--kuptas { background-position: center 40%; }
.hero-slide-bg--begonit { background-position: center 55%; }
.hero-slide.active .hero-slide-bg { transform: scale(1); }
.app-card--contain {
  background: #3a3a3a;
}
.app-card--contain img {
  object-fit: contain;
  object-position: center;
  filter: contrast(1.02) saturate(0.95) brightness(0.98);
}
.app-card--feature img { object-position: center 45%; }
.priority-card img { object-position: center 45%; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(10,10,10,0.92) 0%, rgba(10,10,10,0.72) 45%, rgba(10,10,10,0.35) 100%),
    linear-gradient(to top, rgba(10,10,10,0.55) 0%, transparent 40%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 3rem 0;
}
.hero-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  color: var(--white);
  margin-bottom: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.hero h1 em {
  font-style: normal;
  color: var(--gold);
  font-weight: 800;
}
.hero-desc {
  color: rgba(255,255,255,0.78);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 480px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-dots {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 0.5rem;
}
.hero-dot {
  width: 32px;
  height: 2px;
  background: rgba(255,255,255,0.3);
  border: none;
  cursor: pointer;
  transition: background 0.3s, width 0.3s;
}
.hero-dot.active { background: var(--gold); width: 48px; }

/* ---- Intro ---- */
.intro {
  padding: var(--section-pad) 0;
  background: var(--white);
}
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.intro-content .section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 1rem;
}
.intro-content h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 1.25rem;
}
.intro-content p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.intro-highlight {
  margin-top: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--cream);
  border-left: 3px solid var(--gold);
  font-size: 0.92rem;
  color: var(--text-body);
}
.intro-img {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow);
}
.intro-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(1.04);
}

/* ---- Categories ---- */
.categories { padding: var(--section-pad) 0; background: var(--charcoal); }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 3rem; }
.section-header.light h2 { color: var(--white); }
.section-header.light p { color: rgba(255,255,255,0.65); }
.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}
.section-header h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); margin-bottom: 0.75rem; }
.section-header p { color: var(--text-muted); }

.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.08);
}
.cat-card {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.cat-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.cat-card:hover img { transform: scale(1.08); }
.cat-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.88) 0%, transparent 60%);
}
.cat-card-body {
  position: relative;
  z-index: 1;
  padding: 2rem;
  width: 100%;
}
.cat-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 0.35rem;
}
.cat-card-body span {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-light);
}

/* ---- Priority Paving Products ---- */
.priority-paving { background: var(--charcoal); }
.priority-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.priority-card {
  position: relative;
  overflow: hidden;
  min-height: 380px;
  display: flex;
  align-items: flex-end;
  background: var(--graphite);
  transition: transform 0.35s var(--ease);
}
.priority-card:hover { transform: translateY(-4px); }
.priority-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
  filter: contrast(1.04) saturate(1.05);
}
.priority-card:hover img { transform: scale(1.06); }
.priority-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.35) 55%, rgba(0,0,0,0.15) 100%);
}
.priority-card-body {
  position: relative;
  z-index: 1;
  padding: 1.75rem;
  width: 100%;
}
.priority-card-body span {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
}
.priority-card-body h3 {
  font-size: 1.5rem;
  color: var(--white);
  margin: 0.35rem 0 0.5rem;
}
.priority-card-body p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.55;
}

/* ---- Applications Gallery ---- */
.applications {
  padding: var(--section-pad) 0;
  background: var(--off-white);
}
.app-gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 200px;
  grid-auto-flow: dense;
  gap: 1rem;
}
.app-card {
  position: relative;
  grid-column: span 4;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--charcoal);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.app-card--feature { grid-column: span 8; grid-row: span 2; }
.app-card--half { grid-column: span 6; }
.app-card--tall { grid-row: span 2; }
.app-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease);
  filter: contrast(1.06) saturate(0.98) brightness(0.96);
}
.app-card:hover img {
  transform: scale(1.05);
  filter: contrast(1.08) saturate(1.02) brightness(1);
}
.app-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.08) 55%, transparent 100%);
  pointer-events: none;
}
.app-card-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 1.15rem 1.25rem;
}
.app-card-caption span {
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-light);
}
.app-card-caption h3 {
  font-size: 1rem;
  color: var(--white);
  margin-top: 0.25rem;
  font-weight: 700;
}

.products-secondary { background: var(--cream); border-top: 1px solid rgba(0,0,0,0.04); }

/* ---- Products ---- */
.products { padding: var(--section-pad) 0; background: var(--cream); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.product-card {
  background: var(--white);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.product-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.product-card-body {
  padding: 1.25rem;
  text-align: center;
}
.product-card-body h3 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* ---- Services ---- */
.services { padding: var(--section-pad) 0; background: var(--white); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.service-item { text-align: center; padding: 1.5rem 1rem; }
.service-num {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: -0.04em;
}
.service-item h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.service-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ---- FAQ ---- */
.faq { padding: var(--section-pad) 0; background: var(--charcoal); }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.faq-q {
  width: 100%;
  padding: 1.25rem 0;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--white);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-q::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--gold);
  transition: transform 0.3s;
}
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.faq-a-inner {
  padding: 0 0 1.25rem;
  color: rgba(255,255,255,0.65);
  font-size: 0.92rem;
  line-height: 1.75;
}
.faq-item.open .faq-a { max-height: 200px; }

/* ---- CTA ---- */
.cta {
  padding: var(--section-pad) 0;
  background: linear-gradient(135deg, var(--graphite) 0%, var(--charcoal) 100%);
  text-align: center;
}
.cta h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--white);
  margin-bottom: 1rem;
}
.cta p {
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  margin: 0 auto 2rem;
}

/* ---- Contact ---- */
.contact { padding: var(--section-pad) 0; background: var(--off-white); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.contact-info h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 1rem; }
.contact-items { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 2rem; }
.contact-item h4 {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 0.25rem;
}
.contact-whatsapp {
  display: flex;
  align-items: stretch;
}
.contact-whatsapp-inner {
  background: var(--white);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow);
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}
.contact-whatsapp-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 211, 102, 0.12);
  color: #25d366;
  border-radius: 50%;
}
.contact-whatsapp-inner h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}
.contact-whatsapp-inner p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
}
.btn-whatsapp {
  background: #25d366;
  color: #fff;
  width: 100%;
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.82rem;
}
.btn-whatsapp:hover {
  background: #1da851;
  color: #fff;
}

/* ---- Footer ---- */
.footer {
  background: var(--black);
  color: rgba(255,255,255,0.6);
  padding: 4rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-main { color: var(--white); }
.footer-brand p { margin-top: 1rem; font-size: 0.88rem; line-height: 1.7; max-width: 280px; }
.footer-col h4 {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.5rem 0;
  font-size: 0.75rem;
}

/* ---- Reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---- WhatsApp Float ---- */
.whatsapp-float {
  position: fixed;
  right: max(16px, env(safe-area-inset-right, 16px));
  bottom: max(16px, env(safe-area-inset-bottom, 16px));
  z-index: 1100;
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.55);
  color: #fff;
}

@media (max-width: 1024px) {
  .intro-grid { grid-template-columns: 1fr; }
  .intro-img { order: -1; }
  .cat-grid { grid-template-columns: 1fr; }
  .priority-grid { grid-template-columns: 1fr; }
  .priority-card { min-height: 300px; }
  .app-gallery {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 180px;
  }
  .app-card,
  .app-card--feature,
  .app-card--half { grid-column: span 1; grid-row: span 1; }
  .app-card--tall { grid-row: span 1; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root {
    --topbar-h: 0px;
    --header-h: 68px;
    --section-pad: clamp(48px, 11vw, 72px);
    --scroll-offset: calc(var(--site-header-h) + 12px);
  }

  body { overflow-x: clip; }

  .top-bar { display: none; }
  .nav-desktop, .header-actions .btn { display: none; }
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
  }

  .logo-main {
    font-size: 1.05rem;
    letter-spacing: 0.03em;
  }
  .logo-sub {
    font-size: 0.52rem;
    letter-spacing: 0.14em;
  }

  .mobile-nav {
    padding: calc(var(--site-header-h) + 1rem) 1.5rem 2rem;
  }
  .mobile-nav a {
    font-size: 1.2rem;
    padding: 0.9rem 0;
  }

  .hero-overlay {
    background:
      linear-gradient(to bottom, rgba(10,10,10,0.88) 0%, rgba(10,10,10,0.62) 55%, rgba(10,10,10,0.45) 100%);
  }
  .hero-content {
    padding: 1.75rem 0 4.5rem;
  }
  .hero-label {
    font-size: 0.65rem;
    letter-spacing: 0.16em;
    margin-bottom: 1rem;
  }
  .hero h1 {
    font-size: clamp(1.85rem, 8.5vw, 2.65rem);
    letter-spacing: -0.03em;
  }
  .hero-desc {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }
  .hero-actions .btn {
    width: 100%;
    padding: 0.85rem 1.25rem;
  }
  .hero-dots { bottom: 1.25rem; }

  .intro-img {
    aspect-ratio: 16/10;
    max-height: 340px;
  }
  .intro-highlight {
    padding: 1rem 1.15rem;
    font-size: 0.88rem;
  }

  .section-header { margin-bottom: 2rem; }

  .cat-card { min-height: 240px; }
  .cat-card-body { padding: 1.35rem; }
  .cat-card-body h3 { font-size: 1.15rem; }

  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 0.85rem; }
  .app-gallery {
    grid-template-columns: 1fr;
    grid-auto-rows: 220px;
  }
  .app-card--feature { grid-column: span 1; }
  .product-card-body { padding: 0.85rem; }
  .product-card-body h3 { font-size: 0.78rem; }

  .services-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .service-item { padding: 1rem 0.5rem; }

  .faq-q {
    font-size: 0.88rem;
    padding: 1rem 0;
    align-items: flex-start;
  }
  .faq-item.open .faq-a { max-height: 360px; }

  .cta p { padding: 0 0.5rem; }

  .contact-info h2 { font-size: clamp(1.45rem, 6vw, 1.85rem); }
  .contact-whatsapp-inner {
    padding: 2rem 1.25rem;
  }
  .contact-whatsapp-inner h3 { font-size: 1.15rem; }
  .contact-whatsapp-icon {
    width: 64px;
    height: 64px;
  }

  .footer { padding-top: 3rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
  }

  .whatsapp-float {
    width: 52px;
    height: 52px;
  }
  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero h1 { font-size: clamp(1.65rem, 9vw, 2.2rem); }

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

  .btn {
    min-height: 44px;
  }
}