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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #001a2e 0%, #002d47 50%, #001a2e 100%);
  color: #f5f7f9;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background: #4db8e8;
  color: #001a2e;
}

a {
  color: #4db8e8;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

a:hover {
  color: #7dc9f1;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
  color: #dfe7eb;
}

header {
  background: linear-gradient(135deg, rgba(0, 26, 46, 0.97) 0%, rgba(0, 45, 71, 0.97) 100%);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(77, 184, 232, 0.15);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: linear-gradient(135deg, #4db8e8 0%, #7dc9f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform 200ms ease;
}

.logo:hover {
  transform: scale(1.04);
}

nav {
  display: none;
}

nav.show {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  background: linear-gradient(135deg, rgba(0, 26, 46, 0.98) 0%, rgba(0, 45, 71, 0.98) 100%);
  border-top: 1px solid rgba(77, 184, 232, 0.15);
  padding: 1rem;
}

nav a {
  padding: 0.75rem 0;
  display: block;
  color: #dfe7eb;
  font-size: 1rem;
  transition: color 180ms ease;
}

nav a:hover {
  color: #4db8e8;
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #4db8e8;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  transition: color 180ms ease;
}

.menu-toggle:hover {
  color: #7dc9f1;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: 2px solid;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  display: inline-block;
  transition: all 200ms ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: #4db8e8;
  color: #001a2e;
  border-color: #4db8e8;
}

.btn-primary:hover {
  background: #7dc9f1;
  border-color: #7dc9f1;
  transform: scale(1.04);
  box-shadow: 0 8px 20px rgba(77, 184, 232, 0.3);
}

.btn-outline {
  background: transparent;
  color: #4db8e8;
  border-color: #4db8e8;
}

.btn-outline:hover {
  background: rgba(77, 184, 232, 0.1);
  border-color: #7dc9f1;
  color: #7dc9f1;
  transform: scale(1.04);
}

.btn-secondary {
  background: rgba(160, 216, 247, 0.1);
  color: #a0d8f7;
  border-color: #a0d8f7;
}

.btn-secondary:hover {
  background: rgba(160, 216, 247, 0.2);
  border-color: #ffffff;
  color: #ffffff;
  transform: scale(1.04);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 1rem;
}

section {
  padding: 3rem 0;
  border-top: 1px solid rgba(77, 184, 232, 0.1);
}

section:first-of-type {
  border-top: none;
}

.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 26, 46, 0.7) 0%, rgba(0, 45, 71, 0.7) 100%), url('images/hero-banner.jpg') center/cover no-repeat;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(77, 184, 232, 0.15) 0%, transparent 70%),
    radial-gradient(ellipse 400px 300px at 80% 50%, rgba(160, 216, 247, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: #a0d8f7;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.wave-ripple {
  position: relative;
  overflow: hidden;
}

.wave-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(77, 184, 232, 0.3);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.wave-ripple:hover::after {
  animation: ripple 600ms ease-out;
}

@keyframes ripple {
  to {
    width: 300px;
    height: 300px;
    opacity: 0;
  }
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.grid-6 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.tile {
  background: linear-gradient(135deg, rgba(77, 184, 232, 0.05) 0%, rgba(160, 216, 247, 0.05) 100%);
  border: 1px solid rgba(77, 184, 232, 0.2);
  border-radius: 8px;
  padding: 2rem;
  transition: all 200ms ease;
  cursor: pointer;
}

.tile:hover {
  transform: scale(1.04);
  border-color: rgba(77, 184, 232, 0.4);
  box-shadow: 0 8px 30px rgba(77, 184, 232, 0.15);
}

.tile-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 1rem;
  transition: transform 200ms ease;
}

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

.product-card {
  background: linear-gradient(135deg, rgba(0, 45, 71, 0.4) 0%, rgba(0, 60, 90, 0.4) 100%);
  border: 1px solid rgba(77, 184, 232, 0.2);
  border-radius: 10px;
  overflow: hidden;
  transition: all 220ms ease;
}

.product-card:hover {
  transform: scale(1.04);
  border-color: rgba(77, 184, 232, 0.5);
  box-shadow: 0 12px 40px rgba(77, 184, 232, 0.2);
}

.product-image-wrapper {
  position: relative;
  overflow: hidden;
  height: 250px;
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
}

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

.wave-crest {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse 300px 200px at 50% 0%, rgba(160, 216, 247, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

.product-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(77, 184, 232, 0.9);
  color: #001a2e;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-info {
  padding: 1.5rem;
}

.product-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.product-meta {
  font-size: 0.85rem;
  color: #a0d8f7;
  margin-bottom: 0.8rem;
}

.product-description {
  font-size: 0.9rem;
  color: #dfe7eb;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.product-price {
  font-size: 1.3rem;
  font-weight: 700;
  color: #7dc9f1;
  margin-bottom: 1rem;
}

.product-availability {
  font-size: 0.85rem;
  color: #a0d8f7;
  margin-bottom: 1rem;
}

.points-list {
  list-style: none;
}

.points-list li {
  padding: 0.8rem 0;
  color: #dfe7eb;
  border-bottom: 1px solid rgba(77, 184, 232, 0.1);
}

.points-list li:last-child {
  border-bottom: none;
}

.points-list li strong {
  color: #7dc9f1;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #ffffff;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid rgba(77, 184, 232, 0.2);
  border-radius: 6px;
  background: rgba(0, 26, 46, 0.5);
  color: #f5f7f9;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 180ms ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(240, 243, 245, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #4db8e8;
  box-shadow: 0 0 10px rgba(77, 184, 232, 0.3);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.checkbox-group input {
  width: auto;
  cursor: pointer;
}

.checkbox-group label {
  margin: 0;
  cursor: pointer;
  color: #dfe7eb;
  font-weight: 400;
}

.footer {
  background: linear-gradient(135deg, rgba(0, 15, 26, 0.95) 0%, rgba(0, 20, 35, 0.95) 100%);
  border-top: 1px solid rgba(77, 184, 232, 0.2);
  margin-top: 3rem;
  padding: 3rem 1rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

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

.footer-section h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
  color: #7dc9f1;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: #a0d8f7;
  transition: color 180ms ease;
}

.footer-section ul li a:hover {
  color: #ffffff;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(77, 184, 232, 0.1);
  font-size: 0.9rem;
  color: #a0d8f7;
}

.faq-item {
  background: linear-gradient(135deg, rgba(77, 184, 232, 0.05) 0%, rgba(160, 216, 247, 0.05) 100%);
  border: 1px solid rgba(77, 184, 232, 0.2);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  cursor: pointer;
  transition: all 200ms ease;
}

.faq-item:hover {
  border-color: rgba(77, 184, 232, 0.4);
  box-shadow: 0 4px 15px rgba(77, 184, 232, 0.1);
}

.faq-question {
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0;
}

.faq-answer {
  display: none;
  margin-top: 1rem;
  color: #dfe7eb;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  display: block;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mt-2 {
  margin-top: 2rem;
}

.mb-2 {
  margin-bottom: 2rem;
}

.mt-4 {
  margin-top: 4rem;
}

.mb-4 {
  margin-bottom: 4rem;
}

.fade-in {
  animation: fadeIn 600ms ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.col-content {
  order: 2;
}

.col-image {
  order: 1;
  width: 100%;
}

.col-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 8px 25px rgba(77, 184, 232, 0.15);
}

@media (max-width: 576px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  .hero {
    min-height: 50vh;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  .menu-toggle {
    display: block;
  }

  nav {
    display: none;
    z-index: 999;
  }

  .grid-2,
  .grid-3,
  .grid-6 {
    grid-template-columns: 1fr;
  }

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

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

  .col-content {
    order: 1;
  }

  .col-image {
    order: 2;
  }
}

@media (min-width: 577px) and (max-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (min-width: 769px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  nav {
    display: flex !important;
    position: static;
    background: none;
    border: none;
    padding: 0;
    gap: 2rem;
    flex-direction: row;
  }

  nav a {
    padding: 0;
    color: #a0d8f7;
    font-size: 0.95rem;
  }

  nav a:hover {
    color: #ffffff;
  }
}