/* ============================================
   Space Enterprise — Ceramic Tile Raw Materials
   ============================================ */

:root {
  --color-black: #1a1a1a;
  --color-blue: #1e5a9e;
  --color-blue-dark: #164a82;
  --color-blue-light: #e8f0f8;
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f1f3f5;
  --color-gray-200: #e9ecef;
  --color-gray-400: #adb5bd;
  --color-gray-600: #6c757d;
  --color-gray-800: #343a40;

  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);

  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.25s ease;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

/* ---- Professional page entrance ---- */

.site-reveal {
  opacity: 0;
  transform: translateY(20px);
}

body.is-ready .site-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

body.is-ready .header.site-reveal {
  transform: translateY(0);
  transition-duration: 0.55s;
}

body.is-ready .site-reveal-delay-1 { transition-delay: 0.08s; }
body.is-ready .site-reveal-delay-2 { transition-delay: 0.16s; }
body.is-ready .site-reveal-delay-3 { transition-delay: 0.24s; }

body.is-ready .hero-stats .stat-item:nth-child(1) { transition-delay: 0.32s; }
body.is-ready .hero-stats .stat-item:nth-child(2) { transition-delay: 0.4s; }
body.is-ready .hero-stats .stat-item:nth-child(3) { transition-delay: 0.48s; }

.hero-stats .stat-item {
  opacity: 0;
  transform: translateY(16px);
}

body.is-ready .hero-stats .stat-item {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-reduced-motion: reduce) {
  .site-reveal,
  .hero-stats .stat-item {
    opacity: 1;
    transform: none;
    transition: none !important;
  }
}

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

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

a:hover {
  color: var(--color-blue-dark);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Typography ---- */

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--color-black);
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.35rem); }

.section-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 12px;
}

.section-title {
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-gray-600);
  max-width: 640px;
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--color-blue-dark);
  border-color: var(--color-blue-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.7);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-blue);
  border-color: var(--color-blue);
}

.btn-secondary:hover {
  background-color: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.business-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-600);
  margin-bottom: 20px;
  text-decoration: none;
  transition: color var(--transition);
}

.business-switch:hover {
  color: var(--color-blue);
}

.business-switch svg {
  flex-shrink: 0;
}

.ceramic-switch {
  color: var(--color-gray-600);
}

.ceramic-switch:hover {
  color: var(--color-blue);
}


.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-200);
  transition: box-shadow var(--transition);
}

.header.site-reveal {
  transform: translateY(-14px);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 13px;
  text-decoration: none;
}

.logo img {
  height: 70px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-800);
  text-decoration: none;
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-blue);
  transition: width var(--transition);
}

.nav a:hover {
  color: var(--color-blue);
}

.nav a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 20px !important;
  background-color: var(--color-blue);
  color: var(--color-white) !important;
  border-radius: var(--radius);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background-color: var(--color-blue-dark);
  color: var(--color-white) !important;
}

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

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

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

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

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

/* ---- Hero ---- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 40px) 0 56px;
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-blue-light) 50%, var(--color-gray-100) 100%);
  overflow-x: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(30, 90, 158, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: block;
  padding: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
}

.hero-brand {
  margin-bottom: 28px;
}

.hero-brand-logo {
  height: 140px;
  width: auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-600);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-badge strong {
  color: var(--color-blue);
}

.hero h1,
.hero-title {
  margin-bottom: 20px;
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  line-height: 1.2;
  color: var(--color-blue);
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--color-gray-600);
  margin-bottom: 32px;
  max-width: 100%;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.stat-item {
  display: flex;
  gap: 14px;
  padding: 20px;
  background-color: var(--color-gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition);
}

.stat-item:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-sm);
}

.stat-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-blue-light);
  border-radius: var(--radius);
  color: var(--color-blue);
}

.stat-item h4 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 4px;
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--color-gray-600);
  margin: 0;
}

/* ---- Sections ---- */

section {
  padding: 96px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-desc {
  margin: 0 auto;
}

/* ---- About ---- */

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

.about-grid {
  display: block;
}

.about-content {
  max-width: 100%;
}

.about-content p {
  margin-bottom: 16px;
  color: var(--color-gray-600);
}

.about-content p:last-of-type {
  margin-bottom: 32px;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-item {
  display: flex;
  gap: 14px;
  padding: 20px;
  background-color: var(--color-gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition);
}

.feature-item:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-blue-light);
  border-radius: var(--radius);
  color: var(--color-blue);
}

.feature-item h4 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 0.85rem;
  color: var(--color-gray-600);
  margin: 0;
}

.about-visual {
  position: relative;
}

.about-card {
  background: linear-gradient(145deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  color: var(--color-white);
  text-align: center;
}

.about-card .year {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: 700;
  line-height: 1;
  opacity: 0.9;
}

.about-card .label {
  font-size: 1.1rem;
  font-weight: 500;
  margin-top: 8px;
  opacity: 0.85;
}

.about-card .since {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 0.95rem;
  opacity: 0.8;
}

/* ---- Products ---- */

.products {
  background-color: var(--color-gray-50);
}

.product-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-600);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
}

.products-carousel {
  position: relative;
  padding: 0 48px;
}

.products-carousel-viewport {
  overflow: hidden;
  padding: 8px 4px;
  margin: -8px -4px;
}

.products-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s ease;
  padding: 2px 0;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-gray-200);
  border-radius: 50%;
  background-color: var(--color-white);
  color: var(--color-blue);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  z-index: 2;
}

.carousel-btn:hover {
  background-color: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
}

.carousel-prev {
  left: 0;
}

.carousel-next {
  right: 0;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background-color: var(--color-gray-200);
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}

.carousel-dot.active {
  background-color: var(--color-blue);
  transform: scale(1.15);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--color-gray-200);
  box-sizing: border-box;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  flex: 0 0 calc((100% - 48px) / 3);
  min-width: calc((100% - 48px) / 3);
  box-shadow: 0 0 0 0 transparent;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-blue);
  position: relative;
  z-index: 1;
}

.product-card.hidden {
  display: none;
}

.product-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-blue-light);
  border-radius: var(--radius);
  color: var(--color-blue);
  margin-bottom: 20px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.product-image {
  width: 100%;
  padding: 0;
  margin: 0 0 20px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  background: none;
  cursor: pointer;
  transition: all var(--transition);
}

.product-image img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition);
}

.product-image:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
}

.product-image:hover img {
  transform: scale(1.04);
}

.product-card .product-desc {
  display: none;
}

.product-category {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 8px;
}

.product-card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.product-title-plain {
  font-family: var(--font-sans);
  font-weight: 600;
  font-style: normal;
}

.heading-plain {
  font-family: var(--font-sans);
  font-weight: inherit;
  font-style: normal;
}

.product-card p {
  font-size: 0.9rem;
  color: var(--color-gray-600);
  flex-grow: 1;
  margin-bottom: 20px;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  background-color: var(--color-gray-100);
  color: var(--color-gray-600);
  border-radius: 100px;
}

/* ---- Product Modal ---- */

.product-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.product-modal.open {
  opacity: 1;
  visibility: visible;
}

.product-modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.55);
}

.product-modal-dialog {
  position: relative;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(16px);
  transition: transform var(--transition);
}

.product-modal.open .product-modal-dialog {
  transform: translateY(0);
}

.product-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: none;
  background-color: var(--color-gray-100);
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition);
}

.product-modal-close:hover {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.product-modal-image {
  width: 100%;
  margin-bottom: 24px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
}

.product-modal-image img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  display: block;
}

.product-modal-category {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 8px;
}

.product-modal-dialog h3 {
  margin-bottom: 16px;
  font-size: 1.5rem;
}

.product-modal-dialog h3 .product-title-plain {
  font-family: var(--font-sans);
  font-weight: 600;
  font-style: normal;
}

.product-modal-dialog p {
  font-size: 1rem;
  color: var(--color-gray-600);
  line-height: 1.75;
  margin-bottom: 24px;
}

.product-modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-modal-tags .product-tag {
  font-size: 0.8rem;
  padding: 6px 12px;
}

/* ---- Applications ---- */

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

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

.app-item {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition);
}

.app-item:hover {
  background-color: var(--color-blue-light);
  border-color: var(--color-blue);
}

.app-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-blue);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 12px;
}

.app-item h4 {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.app-item p {
  font-size: 0.85rem;
  color: var(--color-gray-600);
}

/* ---- Why Us ---- */

.why-us {
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

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

.why-card {
  padding: 36px;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  text-align: center;
  transition: all var(--transition);
}

.why-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-blue);
}

.why-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-blue-light);
  border-radius: 50%;
  color: var(--color-blue);
}

.why-card h3 {
  margin-bottom: 12px;
  font-size: 1.15rem;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--color-gray-600);
}

/* ---- Contact ---- */

.contact {
  background-color: var(--color-black);
  color: var(--color-white);
}

.contact .section-label {
  color: rgba(255, 255, 255, 0.6);
}

.contact .section-title {
  color: var(--color-white);
}

.contact .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  color: var(--color-white);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.contact-info > p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  color: var(--color-blue-light);
}

.contact-item strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.contact-item span,
.contact-item a {
  color: var(--color-white);
  font-size: 0.95rem;
}

.contact-item a:hover {
  color: var(--color-blue-light);
}

.contact-form {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 36px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

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

.form-group select {
  cursor: pointer;
}

.form-group select option {
  background-color: var(--color-gray-800);
  color: var(--color-white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

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

.contact-form .btn-primary {
  width: 100%;
  margin-top: 8px;
}

.form-note {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
  margin-top: 12px;
}

/* ---- Footer ---- */

.footer {
  background-color: #111;
  color: rgba(255, 255, 255, 0.6);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img,
.footer-brand .footer-logo {
  height: 56px;
  width: auto;
  margin-bottom: 16px;
  background-color: #ffffff;
  padding: 6px 10px;
  border-radius: 6px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}

/* ---- Animations ---- */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */

@media (max-width: 1024px) {
  section {
    padding: 80px 0;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 0;
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav a {
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid var(--color-gray-100);
  }

  .nav-cta {
    margin-top: 12px;
    text-align: center;
  }

  .menu-toggle {
    display: flex;
  }

  .logo img {
    height: 56px;
  }

  .hero {
    min-height: auto;
    align-items: flex-start;
    padding: calc(var(--header-height) + 32px) 0 48px;
  }

  .hero h1,
  .hero-title {
    font-size: clamp(1.85rem, 6vw, 2.75rem);
    margin-bottom: 18px;
  }

  .hero-desc,
  .hero-actions {
    opacity: 1;
    transform: none;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 36px;
  }

  .hero-stats .stat-item {
    opacity: 1;
    transform: none;
  }

  .hero-actions .btn {
    width: auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .product-card {
    flex: 0 0 calc((100% - 24px) / 2);
    min-width: calc((100% - 24px) / 2);
  }

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

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

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

@media (max-width: 768px) {
  section {
    padding: 64px 0;
  }

  .hero {
    min-height: auto;
    align-items: flex-start;
    padding: calc(var(--header-height) + 24px) 0 36px;
  }

  .hero::before {
    top: -15%;
    right: -30%;
    width: 90%;
    height: 70%;
  }

  .hero-content {
    width: 100%;
  }

  .hero h1,
  .hero-title {
    font-size: clamp(1.75rem, 7.5vw, 2.25rem);
    margin-bottom: 16px;
  }

  .hero-desc,
  .hero-actions {
    opacity: 1;
    transform: none;
  }

  .hero-desc {
    font-size: 1rem;
    margin-bottom: 22px;
    line-height: 1.65;
  }

  .container {
    padding: 0 18px;
  }

  .logo img {
    height: 48px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 28px;
  }

  .hero-brand-logo {
    height: 110px;
  }

  .hero-actions {
    gap: 12px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stat-item {
    padding: 16px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .products-carousel {
    padding: 0 36px;
  }

  .product-card {
    flex: 0 0 100%;
    min-width: 100%;
    padding: 24px;
  }

  .product-modal {
    padding: 16px;
  }

  .product-modal-dialog {
    padding: 28px 20px;
  }

  .contact-item span,
  .contact-item a {
    overflow-wrap: anywhere;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}