:root {
  --bg: #F8FAFC;
  --bg-sec: #EEF6F9;
  --header-bg: #0B3C49;
  --primary: #0F766E;
  --accent: #F59E0B;
  --accent-sec: #3B82F6;
  --success: #16A34A;
  --warning: #DC2626;
  --card-bg: #FFFFFF;
  --border: #CFE7E5;
  --border-hover: #0F766E;
  --highlight: #ECFDF5;
  --highlight-sec: #FFF7ED;
  --text: #1F2937;
  --text-sec: #64748B;
  --muted: #94A3B8;
  
  --btn-primary: #0F766E;
  --btn-hover: #115E59;
  --btn-sec: #FFFFFF;
  --btn-sec-border: #CFE7E5;
  --btn-sec-hover: #F59E0B;

  --radius: 20px;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
  --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--btn-hover);
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

h1, h2, h3, h4, h5 {
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 1rem;
  font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-sec);
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px;
  z-index: 1000;
}

.skip-link:focus {
  top: 0;
}

/* Header & Nav */
header {
  background-color: var(--header-bg);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: #FFFFFF;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo:hover {
  color: var(--border);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 500;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background-color: var(--btn-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--btn-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--btn-sec);
  color: var(--text);
  border: 1px solid var(--btn-sec-border);
}

.btn-secondary:hover {
  border-color: var(--btn-sec-hover);
  color: var(--btn-sec-hover);
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Glass Cards */
.card, .glass-panel {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-sec) 0%, var(--bg) 100%);
  padding: 6rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  max-width: 800px;
  margin: 0 auto 1.5rem;
}

.hero p {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.125rem;
}

/* Disclosure / Ethics */
.disclosure-bar {
  background-color: var(--highlight-sec);
  border: 1px solid var(--accent);
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.ethics-section {
  background-color: var(--highlight);
  border: 1px solid var(--success);
  padding: 2rem;
  border-radius: var(--radius);
  margin-bottom: 3rem;
}

/* Comparison Tables */
.table-wrapper {
  overflow-x: auto;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 3rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

th {
  background-color: var(--bg-sec);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: var(--bg);
}

.status-yes {
  color: var(--success);
  font-weight: 600;
}

.status-no {
  color: var(--warning);
}

.status-partial {
  color: var(--accent);
}

/* Tags & Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-sec);
  color: var(--text);
  border: 1px solid var(--border);
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

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

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}

input, textarea, select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: var(--font-main);
  background-color: var(--card-bg);
  transition: border-color 0.3s;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--primary);
}

/* FAQ Accordion */
.accordion-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 1rem;
  background: var(--card-bg);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  text-align: left;
  padding: 1.25rem;
  background: none;
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
}

.accordion-content {
  padding: 0 1.25rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-content.active {
  padding: 0 1.25rem 1.25rem;
  max-height: 500px;
}

/* Reviews Specific */
.review-header {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.review-section {
  margin-bottom: 2.5rem;
}

/* Responsible Use Alert */
.alert-warning {
  background-color: #FEF2F2;
  border: 1px solid var(--warning);
  padding: 1.5rem;
  border-radius: var(--radius);
  margin: 2rem 0;
}

.alert-warning h3 {
  color: var(--warning);
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background-color: var(--header-bg);
  color: #FFFFFF;
  padding: 4rem 1.5rem 2rem;
  margin-top: 4rem;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: #FFFFFF;
  margin-bottom: 1.5rem;
}

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

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col a {
  color: var(--muted);
  font-size: 0.875rem;
}

.footer-col a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--card-bg);
  padding: 1.5rem;
  box-shadow: 0 -10px 25px rgba(0,0,0,0.1);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  border-top: 1px solid var(--border);
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-content h3 {
  margin-bottom: 0.5rem;
}

.cookie-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--header-bg);
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .cookie-banner {
    flex-direction: column;
  }
}

/* Print Styles */
@media print {
  header, footer, .cookie-banner, .btn {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .card, .table-wrapper {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}