@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Oswald:wght@400;500;700&display=swap');

:root {
  --bg-color: #ffffff;
  --bg-secondary: #f4f4f5;
  --bg-dark: #111111;
  --text-main: #111111;
  --text-light: #52525b;
  --accent-color: #ef4444; /* Subtle red accent for errors or highlights */
  --border-light: #e4e4e7;
  --border-dark: #27272a;
  
  --font-heading: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.25s ease;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, .brand-logo {
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-main);
}

.title-xl {
  font-size: clamp(4rem, 10vw, 8rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
}

.title-lg {
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1;
}

.subtitle {
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 1rem;
  display: block;
}

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

.container {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
}

/* Preloader */
#preloader {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: var(--bg-dark);
  color: var(--bg-color);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: transform var(--transition-slow);
}

.loader-text {
  font-family: var(--font-heading);
  font-size: 3rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  overflow: hidden;
}

.loader-text span {
  display: inline-block;
  animation: slideUpFade 1.5s infinite;
}

@keyframes slideUpFade {
  0% { transform: translateY(100%); opacity: 0; }
  20% { transform: translateY(0); opacity: 1; }
  80% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(-100%); opacity: 0; }
}

/* Affiliate Banner */
.affiliate-banner {
  background-color: var(--text-main);
  color: var(--bg-color);
  text-align: center;
  padding: 8px 15px;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  font-weight: 600;
  text-transform: uppercase;
}

/* Header */
header {
  position: sticky;
  top: 0; width: 100%;
  padding: 20px 5%;
  z-index: 1000;
  background: var(--bg-color);
  border-bottom: 1px solid var(--border-light);
  transition: transform var(--transition-fast);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  font-size: 2.2rem;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 100%; height: 2px;
  background-color: var(--text-main);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.nav-links a:hover::after, .nav-links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 18px 40px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: 2px solid var(--text-main);
  background: transparent;
  color: var(--text-main);
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-solid {
  background-color: var(--text-main);
  color: var(--bg-color);
}

.btn-solid:hover {
  background-color: var(--bg-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: var(--text-main);
  color: var(--bg-color);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 2000;
}

.menu-toggle span {
  display: block;
  width: 35px;
  height: 2px;
  background-color: var(--text-main);
  transition: all var(--transition-fast);
}

.mobile-nav {
  position: fixed;
  top: 0; left: -100%;
  width: 100%; height: 100vh;
  background: var(--bg-dark);
  z-index: 1500;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: left var(--transition-slow);
}

.mobile-nav.open { left: 0; }
.mobile-nav ul { list-style: none; text-align: center; }
.mobile-nav li { margin: 2rem 0; }
.mobile-nav a { font-family: var(--font-heading); font-size: 3rem; text-transform: uppercase; color: var(--bg-color); }

.menu-toggle.open span { background-color: var(--bg-color); }
.menu-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .menu-toggle { display: flex; }
}

/* Scroll Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Hero Section */
.hero {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  padding: 40px 0;
}

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

.hero-text {
  padding-right: 4rem;
}

.hero-text p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin: 2rem 0 3rem;
}

.hero-img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-text { padding-right: 0; }
  .hero-img { order: -1; }
}

/* Content Sections (Multiple Content) */
.content-section {
  padding: 120px 0;
  border-top: 1px solid var(--border-light);
}

.content-section.dark {
  background-color: var(--bg-dark);
  color: var(--bg-color);
  border-top: none;
}

.content-section.dark h2, .content-section.dark .subtitle { color: var(--bg-color); }
.content-section.dark p { color: #a1a1aa; }

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.content-grid.flip .content-text { order: 2; }
.content-grid.flip .content-image { order: 1; }

.content-text h2 { margin-bottom: 2rem; }
.content-text p { margin-bottom: 1.5rem; font-size: 1.05rem; }

.content-image img {
  width: 100%;
  border: 1px solid var(--border-light);
}

@media (max-width: 900px) {
  .content-grid { grid-template-columns: 1fr; }
  .content-grid.flip .content-text, .content-grid.flip .content-image { order: unset; }
}

/* Feature Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 4rem;
  border-top: 1px solid var(--border-dark);
  padding-top: 4rem;
}

.stat-item h3 { font-size: 3rem; color: var(--bg-color); margin-bottom: 0.5rem; }
.stat-item p { text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.05em; }

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* Editorial / Review Page */
.internal-page {
  padding: 100px 0;
}

.editorial-article {
  max-width: 800px;
  margin: 0 auto;
}

.editorial-article img {
  width: 100%;
  margin-bottom: 3rem;
  background: var(--bg-secondary);
}

.editorial-article h3 {
  font-size: 2rem;
  margin: 4rem 0 1.5rem;
}

.editorial-article p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.pull-quote {
  border-left: 4px solid var(--text-main);
  padding-left: 2rem;
  margin: 4rem 0;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  line-height: 1.2;
  text-transform: uppercase;
}

/* Product Page */
.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.product-image-main {
  background: var(--bg-secondary);
}

.product-image-main img {
  width: 100%;
  display: block;
}

.product-thumbs {
  display: flex;
  gap: 15px;
  margin-top: 15px;
}

.product-thumbs img {
  width: 100px; height: 100px;
  object-fit: cover;
  cursor: pointer;
  background: var(--bg-secondary);
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.product-thumbs img:hover, .product-thumbs img.active {
  opacity: 1;
  border-bottom: 2px solid var(--text-main);
}

.product-info h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.product-price {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.product-specs {
  list-style: none;
  margin: 3rem 0;
  border-top: 1px solid var(--border-light);
}

.product-specs li {
  display: flex;
  justify-content: space-between;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
}

.product-specs span:last-child {
  color: var(--text-light);
}

@media (max-width: 900px) {
  .product-grid { grid-template-columns: 1fr; gap: 3rem; }
}

/* FAQ Section */
.faq-section {
  padding: 120px 0;
  background: var(--bg-secondary);
}

.faq-item {
  border-bottom: 1px solid var(--border-light);
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 25px 0;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  text-transform: uppercase;
  color: var(--text-main);
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  outline: none;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--text-light);
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform var(--transition-fast);
}

.faq-question.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer p {
  padding-bottom: 25px;
  color: var(--text-light);
  font-size: 1rem;
}

/* Comparison Table */
.comparison-wrapper {
  margin-top: 100px;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 3rem;
}

.comparison-table th, .comparison-table td {
  padding: 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  background: var(--bg-dark);
  color: var(--bg-color);
  text-transform: uppercase;
}

.comparison-table td:first-child, .comparison-table th:first-child {
  text-align: left;
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  background: var(--bg-secondary);
  color: var(--text-main);
}

.highlight-col {
  background-color: var(--bg-secondary);
  font-weight: 600;
}

/* Contact Form & Legal */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h1 { margin-bottom: 3rem; text-align: center; }
.legal-content h2 { font-size: 1.8rem; margin: 4rem 0 1.5rem; }
.legal-content p { color: var(--text-light); margin-bottom: 1.5rem; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  max-width: 1000px;
  margin: 0 auto;
}

.form-input {
  width: 100%;
  padding: 15px 20px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--text-main);
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

/* Footer */
footer {
  background-color: var(--bg-dark);
  color: var(--bg-color);
  padding: 100px 5% 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 4rem;
  max-width: 1400px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  display: block;
  color: var(--bg-color);
}

.footer-col p, .footer-col a {
  color: #a1a1aa;
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
  display: block;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: var(--bg-color);
}

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

.footer-bottom {
  max-width: 1400px;
  margin: 80px auto 0;
  padding-top: 30px;
  border-top: 1px solid var(--border-dark);
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #a1a1aa;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: -200px;
  left: 0; width: 100%;
  background: var(--bg-dark);
  color: var(--bg-color);
  padding: 25px 5%;
  z-index: 9999;
  transition: bottom var(--transition-slow);
}

.cookie-banner.active {
  bottom: 0;
}

.cookie-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 3rem;
}

.cookie-content p {
  font-size: 0.95rem;
}

.cookie-content a {
  color: var(--bg-color);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .cookie-content { flex-direction: column; text-align: center; gap: 1.5rem; }
}