/* ==========================================================================
   Lumea Lentilelor - CSS Framework & Custom Styling
   Theme: Optical Clarity, Water & Oxygen Hydrogel Aesthetics
   Google Ads & Mobile Responsive Compliant
   ========================================================================== */

:root {
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #e0f2fe;
  --secondary: #0d9488;
  --secondary-hover: #0f766e;
  --accent: #2563eb;
  --dark: #0f172a;
  --dark-surface: #1e293b;
  --light: #f8fafc;
  --light-gray: #f1f5f9;
  --border: #e2e8f0;
  --text-main: #334155;
  --text-muted: #64748b;
  --text-dark: #0f172a;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  color: var(--text-main);
  background-color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography Helpers */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-muted { color: var(--text-muted); }
.font-bold { font-weight: 700; }

.section-tag {
  display: inline-block;
  padding: 0.35rem 1rem;
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 2.5rem auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
}

.btn-secondary {
  background-color: var(--secondary);
  color: #ffffff;
}

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

.btn-outline {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.125rem;
}

.btn-block {
  width: 100%;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-dark);
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.3);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-weight: 600;
  color: var(--text-main);
  font-size: 0.95rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-dark);
}

/* Hero Section */
.hero {
  padding: 5rem 0 4rem 0;
  background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  background: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.hero-badge-item i {
  color: var(--secondary);
}

/* Feature Cards Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Interactive Vision Simulator */
.simulator-section {
  padding: 5rem 0;
  background-color: var(--light-gray);
}

.simulator-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  height: 450px;
  margin: 2rem auto 1rem auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  user-select: none;
}

.sim-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.sim-blurred {
  background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  filter: blur(8px);
}

.sim-blurred-text {
  font-size: 2.2rem;
  font-weight: 800;
  color: #1e293b;
  text-align: center;
  padding: 2rem;
  letter-spacing: -1px;
}

.sim-clear {
  width: 50%;
  border-right: 3px solid white;
  background: linear-gradient(135deg, #e0f2fe 0%, #0284c7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  white-space: nowrap;
}

.sim-clear-text {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  text-align: center;
  padding: 2rem;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.sim-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background-color: #ffffff;
  cursor: ew-resize;
  transform: translateX(-50%);
  z-index: 10;
}

.sim-slider-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background-color: #ffffff;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: bold;
}

.sim-labels {
  display: flex;
  justify-content: space-between;
  max-width: 900px;
  margin: 0.75rem auto 0 auto;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Interactive Quiz */
.quiz-section {
  padding: 5rem 0;
  background: white;
}

.quiz-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  max-width: 750px;
  margin: 0 auto;
}

.quiz-step {
  display: none;
}

.quiz-step.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

.quiz-option {
  padding: 1.25rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  font-weight: 600;
  background: var(--light);
}

.quiz-option:hover, .quiz-option.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-hover);
}

.quiz-progress {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.quiz-bar {
  height: 100%;
  background: var(--primary);
  width: 33.33%;
  transition: width 0.3s ease;
}

/* Deep Information Section */
.info-section {
  padding: 5rem 0;
}

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

.info-content h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 1.25rem;
}

.info-content p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: var(--text-main);
}

.info-list {
  margin: 1.5rem 0;
}

.info-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.info-list-item i {
  color: var(--secondary);
  font-size: 1.2rem;
  margin-top: 0.2rem;
}

/* Certificates Section */
.cert-section {
  padding: 4rem 0;
  background-color: #f8fafc;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.cert-card {
  background: white;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.cert-badge-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem auto;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: bold;
}

.cert-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.cert-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* FAQ Accordion */
.faq-section {
  padding: 5rem 0;
}

.faq-accordion {
  max-width: 850px;
  margin: 2rem auto 0 auto;
}

.faq-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 700;
  color: var(--text-dark);
  font-size: 1.05rem;
  background: white;
}

.faq-header:hover {
  background: var(--light);
}

.faq-toggle-icon {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
  color: var(--primary);
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  padding: 0 1.5rem;
  color: var(--text-main);
  background: #ffffff;
}

.faq-item.active .faq-body {
  max-height: 400px;
  padding: 1rem 1.5rem 1.5rem 1.5rem;
  border-top: 1px solid var(--light-gray);
}

/* Lead Form Card (consultatie.html) */
.form-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  min-height: calc(100vh - 160px);
  display: flex;
  align-items: center;
}

.form-wrapper {
  max-width: 520px;
  margin: 0 auto;
  background: white;
  padding: 3rem 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.form-header {
  text-align: center;
  margin-bottom: 2rem;
}

.form-header h1 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.form-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.form-control {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  font-family: inherit;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.form-control.error {
  border-color: #ef4444;
}

.error-msg {
  color: #ef4444;
  font-size: 0.85rem;
  margin-top: 0.35rem;
  display: none;
}

.form-control.error + .error-msg {
  display: block;
}

.form-privacy-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 1.25rem;
  line-height: 1.4;
}

/* Thank You Page (multumim.html) */
.thank-you-section {
  padding: 6rem 0;
  text-align: center;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.thank-you-card {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: 3.5rem 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.thank-you-icon {
  width: 80px;
  height: 80px;
  background: #dcfce7;
  color: #16a34a;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 1.5rem auto;
}

/* Legal & Policy Pages */
.legal-page {
  padding: 4rem 0 6rem 0;
  background: white;
}

.legal-content h1 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.legal-updated {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.legal-body {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-main);
}

.legal-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 2rem 0 1rem 0;
}

.legal-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 1.5rem 0 0.75rem 0;
}

.legal-body p {
  margin-bottom: 1.25rem;
}

.legal-body ul {
  list-style: disc;
  margin: 1rem 0 1.5rem 2rem;
}

.legal-body li {
  margin-bottom: 0.5rem;
}

.disclaimer-box {
  background-color: #fffbeeb;
  border-left: 4px solid #f59e0b;
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
  color: #92400e;
  font-size: 0.95rem;
}

/* Cookie Banner (GDPR) */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--dark-surface);
  color: #ffffff;
  padding: 1.25rem 0;
  z-index: 9999;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
  display: none;
}

.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cookie-text {
  font-size: 0.9rem;
  color: #cbd5e1;
  line-height: 1.5;
}

.cookie-text a {
  color: var(--primary-light);
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* Site Footer */
.site-footer {
  background-color: var(--dark);
  color: #cbd5e1;
  padding: 4rem 0 2rem 0;
  border-top: 1px solid #1e293b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.925rem;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: #64748b;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Styles */
@media (max-width: 992px) {
  .hero-grid, .info-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.15rem;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav-menu.show {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .quiz-options {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .cookie-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .cookie-actions {
    width: 100%;
    justify-content: flex-end;
  }
}