/* ============================================
   HATAŞ STONE - Design System
   ============================================ */

:root {
  --color-primary: #c4a35a;
  --color-primary-dark: #a8863f;
  --color-primary-light: #d4b86e;
  --color-dark: #1a1a1a;
  --color-dark-soft: #2d2d2d;
  --color-gray: #6b6b6b;
  --color-gray-light: #9a9a9a;
  --color-light: #f5f3ef;
  --color-white: #ffffff;
  --color-whatsapp: #25d366;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  --header-height: 80px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.15);
  --radius: 8px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-dark);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

.btn--white:hover {
  background: transparent;
  color: var(--color-white);
}

.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn--outline:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

.btn--whatsapp {
  background: var(--color-whatsapp);
  color: var(--color-white);
  border-color: var(--color-whatsapp);
}

.btn--whatsapp:hover {
  background: #1da851;
  border-color: #1da851;
  transform: translateY(-2px);
}

/* Section */
.section {
  padding: 100px 0;
}

.section--dark {
  background: var(--color-dark);
  color: var(--color-white);
}

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

.section__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section__tag--light { color: var(--color-primary-light); }

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 20px;
}

.section__desc {
  font-size: 1.0625rem;
  color: var(--color-gray);
  max-width: 600px;
}

.section--dark .section__desc { color: var(--color-gray-light); }

.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__header .section__desc {
  margin: 0 auto;
}

/* Page Hero (inner pages) */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background: var(--color-dark);
  color: var(--color-white);
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.3;
}

.page-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.95) 0%, rgba(26,26,26,0.7) 100%);
}

.page-hero__content {
  position: relative;
  z-index: 1;
}

.page-hero__breadcrumb {
  font-size: 0.875rem;
  color: var(--color-gray-light);
  margin-bottom: 16px;
}

.page-hero__breadcrumb a:hover { color: var(--color-primary); }

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 600;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: all var(--transition);
}

.header.scrolled {
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-white);
}

.logo__icon {
  color: var(--color-primary);
  font-size: 1.25rem;
}

.logo strong { font-weight: 700; }

.nav__list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  display: block;
  padding: 10px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.nav__dropdown { position: relative; }

.nav__submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-dark);
  border-radius: var(--radius);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  box-shadow: var(--shadow-lg);
}

.nav__dropdown:hover .nav__submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__submenu a {
  display: block;
  padding: 10px 16px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.8);
  border-radius: 4px;
  transition: all var(--transition);
}

.nav__submenu a:hover {
  background: rgba(196, 163, 90, 0.15);
  color: var(--color-primary);
}

.header__cta { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition);
}

/* Hero Slider */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero__slides {
  position: relative;
  height: 100%;
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease, visibility 1s ease;
}

.hero__slide.active {
  opacity: 1;
  visibility: visible;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero__slide.active .hero__bg {
  transform: scale(1);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26, 26, 26, 0.85) 0%,
    rgba(26, 26, 26, 0.4) 50%,
    rgba(26, 26, 26, 0.6) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-height);
  max-width: 720px;
  color: var(--color-white);
}

.hero__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease 0.5s forwards;
}

.hero__title em {
  font-style: normal;
  color: var(--color-primary);
}

.hero__desc {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 540px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease 0.7s forwards;
}

.hero__content .btn {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease 0.9s forwards;
  align-self: flex-start;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__controls {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 24px;
  z-index: 10;
}

.hero__arrow {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition);
  backdrop-filter: blur(4px);
}

.hero__arrow:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-dark);
}

.hero__dots {
  display: flex;
  gap: 8px;
}

.hero__dot {
  width: 40px;
  height: 3px;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.hero__dot.active {
  background: var(--color-primary);
  width: 60px;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  right: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  z-index: 10;
}

.hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.5; transform: scaleY(0.8); }
}

/* Stats */
.stats {
  background: var(--color-primary);
  padding: 60px 0;
  margin-top: -1px;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat__number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1;
  margin-bottom: 8px;
}

.stat__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(26, 26, 26, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* About Preview */
.about-preview__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-preview__media {
  position: relative;
}

.about-preview__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-preview__image img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
}

.about-preview__badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--color-primary);
  color: var(--color-dark);
  padding: 24px 32px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.about-preview__badge-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.about-preview__badge-text {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.about-preview__features {
  margin: 32px 0;
}

.about-preview__features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  font-weight: 500;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.about-preview__features svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* Products Grid */
.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-dark-soft);
  transition: all var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.product-card:hover .product-card__image img {
  transform: scale(1.08);
}

.product-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,26,0.9) 0%, transparent 60%);
}

.product-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  z-index: 1;
}

.product-card__content h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-card__content p {
  font-size: 0.875rem;
  color: var(--color-gray-light);
  margin-bottom: 12px;
}

.product-card__link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.products__cta {
  text-align: center;
  margin-top: 48px;
}

/* CTA Banner */
.cta-banner {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
}

.cta-banner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.cta-banner__overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 26, 0.88);
}

.cta-banner__content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--color-white);
  max-width: 720px;
  margin: 0 auto;
}

.cta-banner__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 20px;
}

.cta-banner__desc {
  font-size: 1.0625rem;
  color: var(--color-gray-light);
  margin-bottom: 36px;
}

.cta-banner__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* References / Partners */
.references {
  background: #f7f4ef;
}

.references.section--dark {
  background: var(--color-dark);
}

.partners-showcase {
  position: relative;
}

.partners-grid,
.references__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 28px 20px;
  align-items: center;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 8px;
  min-height: 96px;
  transition: transform 0.3s ease;
}

.partner-logo:hover {
  transform: scale(1.06);
}

.partner-logo img {
  max-width: 100%;
  max-height: 72px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.partner-logo--error {
  display: none;
}

.references__footer {
  text-align: center;
  margin-top: 48px;
}

.references.section--dark .partner-logo img {
  filter: brightness(1.15);
}

/* Legacy */
.reference-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 8px;
  min-height: 96px;
}

.reference-item__logo {
  max-width: 100%;
  max-height: 72px;
  object-fit: contain;
}

.reference-item__text {
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--color-gray);
  text-align: center;
}

.reference-item--dark .reference-item__text {
  color: rgba(255, 255, 255, 0.7);
}

/* Footer */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 80px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 60px;
}

.footer__brand p {
  margin-top: 20px;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.logo--footer { margin-bottom: 0; }

.footer__col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 24px;
}

.footer__col ul li {
  margin-bottom: 12px;
}

.footer__col a {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer__col a:hover { color: var(--color-primary); }

.footer__contact li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.footer__contact svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-primary);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}

.footer__bottom a:hover { color: var(--color-primary); }

/* WhatsApp Float */
.whatsapp-float {
  position: fixed;
  bottom: 32px;
  left: 32px;
  width: 60px;
  height: 60px;
  background: var(--color-whatsapp);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition);
  animation: whatsappPulse 2s ease infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-dark);
  border: none;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
  box-shadow: var(--shadow);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-4px);
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Inner Pages
   ============================================ */

/* Product Detail Cards */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.product-detail:nth-child(even) {
  direction: rtl;
}

.product-detail:nth-child(even) > * {
  direction: ltr;
}

.product-detail__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.product-detail__image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.product-detail__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.product-detail__title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.product-detail__desc {
  color: var(--color-gray);
  margin-bottom: 24px;
  line-height: 1.8;
}

.product-detail__list {
  margin-bottom: 32px;
}

.product-detail__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9375rem;
}

.product-detail__list li::before {
  content: '◆';
  color: var(--color-primary);
  font-size: 0.5rem;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

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

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 26, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__overlay svg {
  color: var(--color-white);
  transform: scale(0.8);
  transition: transform var(--transition);
}

.gallery-item:hover .gallery-item__overlay svg {
  transform: scale(1);
}

.gallery-filters {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.gallery-filter {
  padding: 10px 24px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: transparent;
  border: 2px solid var(--color-dark);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}

.gallery-filter.active,
.gallery-filter:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}

.contact-info__item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.contact-info__icon {
  width: 56px;
  height: 56px;
  background: var(--color-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-info__item h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 4px;
}

.contact-info__item p,
.contact-info__item a {
  font-size: 1.0625rem;
  font-weight: 500;
}

.contact-info__item a:hover { color: var(--color-primary); }

.contact-form {
  background: var(--color-light);
  padding: 48px;
  border-radius: var(--radius-lg);
}

.contact-form h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.contact-form > p {
  color: var(--color-gray);
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--color-gray);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  background: var(--color-white);
  transition: all var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-map {
  margin-top: 80px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 400px;
  background: var(--color-light);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* About Page */
.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-content p {
  font-size: 1.125rem;
  line-height: 1.9;
  color: var(--color-gray);
  margin-bottom: 24px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 60px;
}

.value-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--color-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.value-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}

.value-card__icon {
  width: 64px;
  height: 64px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
}

.value-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.value-card p {
  font-size: 0.9375rem;
  color: var(--color-gray);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.certificate-card {
  text-align: center;
  padding: 40px 24px;
  border: 2px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.certificate-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.certificate-card__icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.certificate-card h4 {
  font-weight: 600;
  margin-bottom: 8px;
}

.certificate-card p {
  font-size: 0.875rem;
  color: var(--color-gray);
}

/* ============================================
   Responsive
   ============================================ */

@media (min-width: 1024px) {
  .header__cta { display: inline-flex; }
}

@media (max-width: 1024px) {
  .products__grid { grid-template-columns: repeat(2, 1fr); }
  .about-preview__grid { gap: 48px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .references__grid,
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
  .product-detail { grid-template-columns: 1fr; gap: 32px; }
  .product-detail:nth-child(even) { direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .certificates-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-dark);
    padding: 24px;
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
  }

  .nav.open { transform: translateX(0); }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav__link {
    padding: 16px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav__submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: rgba(255, 255, 255, 0.03);
    box-shadow: none;
    display: none;
    margin-left: 16px;
  }

  .nav__dropdown.open .nav__submenu { display: block; }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) { opacity: 0; }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .about-preview__grid { grid-template-columns: 1fr; }
  .about-preview__badge { right: 20px; bottom: -10px; }
  .products__grid { grid-template-columns: 1fr; }
  .references__grid,
  .partners-grid { grid-template-columns: repeat(3, 1fr); gap: 20px 16px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom-inner { flex-direction: column; gap: 12px; text-align: center; }
  .hero__scroll { display: none; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 32px 24px; }
  .cta-banner__bg { background-attachment: scroll; }
}

@media (max-width: 480px) {
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .certificates-grid { grid-template-columns: 1fr; }
  .whatsapp-float { bottom: 20px; left: 20px; width: 52px; height: 52px; }
  .back-to-top { bottom: 20px; right: 20px; }
}