/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #1e293b;
  background: #fff;
}

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

/* ===== LAYOUT ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.text-center { text-align: center; }

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 18px;
  flex-shrink: 0;
}
.logo-name { font-size: 17px; font-weight: 700; color: #0f172a; line-height: 1.2; }
.logo-sub  { font-size: 11px; color: #94a3b8; }

/* Nav */
.nav { display: flex; gap: 32px; }
.nav-link {
  font-size: 14px; font-weight: 500;
  color: #64748b;
  transition: color .2s;
}
.nav-link:hover, .nav-link.active { color: #0ea5e9; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: #64748b; border-radius: 2px;
  transition: all .2s;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  border-top: 1px solid #e2e8f0;
  background: #fff;
  padding: 12px 24px 16px;
  gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px; font-weight: 500;
  color: #64748b;
  transition: all .2s;
}
.mobile-menu a:hover { background: #f8fafc; color: #0ea5e9; }

@media (max-width: 768px) {
  .nav { display: none; }
  .hamburger { display: flex; }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px; font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: #0ea5e9; color: #fff;
  box-shadow: 0 4px 14px rgba(14,165,233,.3);
}
.btn-primary:hover { background: #0284c7; }
.btn-outline {
  border-color: #0ea5e9; color: #0ea5e9;
  background: transparent;
}
.btn-outline:hover { background: #f0f9ff; }
.btn-white { background: #fff; color: #0ea5e9; }
.btn-white:hover { background: #f0f9ff; }
.btn-outline-white { border-color: #fff; color: #fff; background: transparent; }
.btn-outline-white:hover { background: rgba(255,255,255,.1); }
.btn-full { width: 100%; justify-content: center; }
.btn-group { display: flex; gap: 16px; flex-wrap: wrap; }
.arrow { font-size: 18px; }

/* ===== HERO ===== */
.hero {
  position: relative;
  background: linear-gradient(180deg, #f0f9ff 0%, #fff 60%, rgba(240,249,255,.3) 100%);
  padding: 96px 24px 128px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url('https://images.unsplash.com/photo-1534796636912-3b95b3ab5986?w=1600') center/cover;
  opacity: .04;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
}
.hero-text { display: flex; flex-direction: column; gap: 32px; }
.badge {
  display: inline-block;
  padding: 8px 16px;
  background: #e0f2fe; color: #0369a1;
  border-radius: 999px; font-size: 13px; font-weight: 500;
  width: fit-content;
}
.hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800; color: #0f172a; line-height: 1.1;
}
.hero-sub { display: block; color: #0ea5e9; margin-top: 8px; }
.hero-desc { font-size: 1.2rem; color: #475569; line-height: 1.7; }
.hero-img { position: relative; }
.hero-img-glow {
  position: absolute; inset: -20px;
  background: linear-gradient(135deg, rgba(14,165,233,.15), rgba(37,99,235,.15));
  border-radius: 32px; filter: blur(40px);
}
.hero-img img { position: relative; border-radius: 20px; box-shadow: 0 25px 50px rgba(0,0,0,.15); width: 100%; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-img { order: -1; max-width: 480px; margin: 0 auto; }
  .hero { padding: 64px 24px 80px; }
}

/* ===== QUICK SPECS ===== */
.quick-specs {
  padding: 32px 0;
  background: #fff;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}
.specs-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.spec-item { text-align: center; }
.spec-label { font-size: 13px; color: #94a3b8; margin-bottom: 6px; }
.spec-val { font-size: 20px; font-weight: 700; color: #0f172a; }

@media (max-width: 600px) {
  .specs-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== SECTIONS ===== */
.section { padding: 96px 0; }
.section.bg-white { background: #fff; }
.section.bg-light { background: linear-gradient(180deg, #fff 0%, #f0f9ff 50%, #fff 100%); }

.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { font-size: 2.2rem; font-weight: 700; color: #0f172a; }
.section-header p { font-size: 1.1rem; color: #64748b; margin-top: 12px; }

/* ===== CARD GRIDS ===== */
.card-grid-4 {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.card-grid-3 {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
@media (max-width: 1000px) { .card-grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px)  { .card-grid-3 { grid-template-columns: 1fr; } }
@media (max-width: 600px)  { .card-grid-4 { grid-template-columns: 1fr; } }

/* ===== CARD ===== */
.card {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 4px 24px rgba(0,0,0,.07);
  transition: box-shadow .3s, transform .3s;
}
.card:hover { box-shadow: 0 12px 40px rgba(0,0,0,.12); transform: translateY(-4px); }
.card-icon { font-size: 32px; margin-bottom: 16px; }
.card h3 { font-size: 1.1rem; font-weight: 700; color: #0f172a; margin-bottom: 12px; }
.card p { font-size: .9rem; color: #64748b; line-height: 1.7; }

/* ===== GALLERY ===== */
.gallery-3 {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.gallery-item {
  aspect-ratio: 1; border-radius: 20px; overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,.1);
  transition: box-shadow .3s;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.gallery-item:hover img { transform: scale(1.05); }
@media (max-width: 768px) { .gallery-3 { grid-template-columns: 1fr; } }

/* ===== WHY US ===== */
.why-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.why-item { text-align: center; }
.why-icon {
  font-size: 36px;
  width: 72px; height: 72px;
  background: #e0f2fe;
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.why-item h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.why-item p { font-size: .9rem; color: #64748b; }
@media (max-width: 768px) { .why-grid { grid-template-columns: 1fr; gap: 32px; } }

/* ===== CTA ===== */
.cta-section {
  padding: 96px 24px;
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  position: relative; overflow: hidden;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?w=1600') center/cover;
  opacity: .08;
}
.cta-inner { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }
.cta-inner h2 { font-size: 2.5rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-inner p { font-size: 1.1rem; color: rgba(255,255,255,.85); margin-bottom: 40px; }
.cta-inner .btn-group { justify-content: center; }

/* ===== FOOTER ===== */
.footer { background: #0f172a; color: #fff; }
.footer-inner {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 48px; padding: 64px 0;
}
.footer-col h4 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.footer-desc { font-size: .85rem; color: #94a3b8; margin-top: 12px; line-height: 1.7; }
.footer-nav { display: flex; flex-direction: column; gap: 8px; }
.footer-nav a { font-size: .9rem; color: #94a3b8; transition: color .2s; }
.footer-nav a:hover { color: #fff; }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact-item { font-size: .85rem; color: #94a3b8; line-height: 1.6; }
.footer-contact-item a { color: #94a3b8; transition: color .2s; }
.footer-contact-item a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding: 24px;
  text-align: center;
  font-size: .85rem; color: #64748b;
}

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== PAGE HEADER ===== */
.page-header {
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
  padding: 48px 24px;
}
.page-header h1 { font-size: 2.5rem; font-weight: 800; color: #0f172a; }
.page-header p { font-size: 1.1rem; color: #64748b; margin-top: 8px; }

/* ===== PRODUCT PAGE ===== */
.product-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: start;
}
@media (max-width: 900px) {
  .product-layout { grid-template-columns: 1fr; }
}

.main-image {
  aspect-ratio: 1;
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
  border: 1px solid #e2e8f0;
}
.main-image img { width: 100%; height: 100%; object-fit: cover; }

.thumb-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px; margin-top: 16px;
}
.thumb {
  aspect-ratio: 1; border-radius: 12px; overflow: hidden;
  border: 2px solid #e2e8f0; cursor: pointer;
  background: none; padding: 0;
  transition: border-color .2s;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb:hover { border-color: #7dd3fc; }
.thumb.active { border-color: #0ea5e9; box-shadow: 0 2px 8px rgba(14,165,233,.3); }

.product-info { display: flex; flex-direction: column; gap: 24px; }
.info-card {
  background: #fff;
  border-radius: 20px; padding: 28px;
  box-shadow: 0 4px 24px rgba(0,0,0,.07);
}
.info-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 16px; }
.info-card p { color: #475569; line-height: 1.7; margin-bottom: 12px; }
.info-card-blue { background: linear-gradient(135deg, #f0f9ff, #fff); }

.features-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.feature-item { font-size: .9rem; color: #334155; display: flex; align-items: center; gap: 6px; }

/* Spec section */
.spec-section { margin-top: 64px; }
.spec-section h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 32px; }
.spec-table-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.spec-cell {
  padding: 20px 24px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
}
.spec-cell-label { font-size: 12px; color: #94a3b8; margin-bottom: 6px; text-transform: uppercase; letter-spacing: .05em; }
.spec-cell-val { font-size: 1rem; font-weight: 600; color: #0f172a; }
@media (max-width: 768px) { .spec-table-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .spec-table-grid { grid-template-columns: 1fr; } }

/* ===== ABOUT PAGE ===== */
.two-col {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
}
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.two-col-text { display: flex; flex-direction: column; gap: 20px; }
.two-col-text h2 { font-size: 2rem; font-weight: 700; color: #0f172a; }
.two-col-text p { color: #475569; line-height: 1.8; }
.two-col-img { border-radius: 20px; overflow: hidden; box-shadow: 0 20px 50px rgba(0,0,0,.12); }
.two-col-img img { width: 100%; height: 100%; object-fit: cover; }

.badge-inline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; background: #e0f2fe; color: #0369a1;
  border-radius: 999px; font-size: 13px; font-weight: 600;
  width: fit-content;
}
.bullet-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.bullet-list li {
  display: flex; align-items: flex-start; gap: 10px;
  color: #475569; line-height: 1.6;
}
.bullet-list li::before {
  content: '';
  width: 8px; height: 8px;
  background: #0ea5e9; border-radius: 50%;
  flex-shrink: 0; margin-top: 8px;
}
.info-card-big { background: linear-gradient(135deg, #f0f9ff, #fff); border-radius: 24px; padding: 48px; box-shadow: 0 8px 32px rgba(0,0,0,.08); }

/* ===== CONTACT PAGE ===== */
.contact-layout {
  display: grid; grid-template-columns: 1fr 2fr;
  gap: 48px; align-items: start;
}
@media (max-width: 900px) { .contact-layout { grid-template-columns: 1fr; } }

.contact-info-card {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  color: #fff; border-radius: 20px; padding: 32px;
  margin-bottom: 24px;
}
.contact-info-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.contact-info-card h4 { font-size: 1rem; font-weight: 600; margin-bottom: 24px; opacity: .9; }
.contact-detail {
  display: flex; gap: 12px;
  margin-bottom: 20px; font-size: .9rem;
}
.contact-icon { font-size: 18px; flex-shrink: 0; margin-top: 2px; }
.contact-detail strong { display: block; margin-bottom: 4px; }
.contact-detail span, .contact-detail a { color: rgba(255,255,255,.8); line-height: 1.6; }
.contact-detail a:hover { color: #fff; }
.office-img { border-radius: 16px; overflow: hidden; box-shadow: 0 8px 24px rgba(0,0,0,.1); }
.office-img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }

.form-card {
  background: #fff; border-radius: 20px; padding: 40px;
  box-shadow: 0 8px 40px rgba(0,0,0,.1);
}
.form-card h3 { font-size: 1.6rem; font-weight: 700; margin-bottom: 8px; }
.form-sub { color: #64748b; margin-bottom: 32px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 0; }
.form-group label { font-size: 14px; font-weight: 500; color: #374151; }
.form-group input, .form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px;
  font-size: 15px; font-family: inherit;
  color: #0f172a;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
  background: #fff;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: #0ea5e9;
  box-shadow: 0 0 0 3px rgba(14,165,233,.15);
}
.form-group textarea { resize: vertical; min-height: 140px; line-height: 1.6; }
.form-group { margin-bottom: 24px; }

.success-card {
  background: #fff; border-radius: 20px; padding: 80px 40px;
  text-align: center;
  box-shadow: 0 8px 40px rgba(0,0,0,.1);
}
.success-icon { font-size: 56px; margin-bottom: 24px; }
.success-card h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.success-card p { color: #64748b; margin-bottom: 32px; font-size: 1rem; }