/* KneePro - Premium Sporty Design System */

:root {
  /* Color Palette - Sporty Premium Slate & Neon Green */
  --color-base: #F8FAFC; /* Slate 50 */
  --color-surface: #FFFFFF;
  --color-surface-secondary: #E2E8F0; /* Slate 200 */
  --color-surface-dark: #0F172A; /* Slate 900 */
  --color-surface-dark-card: #1E293B; /* Slate 800 */
  
  --color-text-main: #0F172A; /* Slate 900 */
  --color-text-muted: #475569; /* Slate 600 */
  --color-text-light: #F8FAFC;
  --color-text-light-muted: #94A3B8; /* Slate 400 */
  
  --color-brand-primary: #0F172A;
  --color-brand-accent: #10B981; /* Emerald Neon Green */
  --color-brand-accent-glow: rgba(16, 185, 129, 0.35);
  --color-brand-secondary: #3B82F6; /* Cobalt Blue */
  --color-brand-secondary-glow: rgba(59, 130, 246, 0.2);
  --color-gold: #F59E0B; /* Amber star gold */
  --color-danger: #EF4444;
  
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Modern Shadows */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 30px var(--color-brand-accent-glow);
  --shadow-glow-blue: 0 0 30px var(--color-brand-secondary-glow);
  
  /* Borders and Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-pill: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-base);
}
::-webkit-scrollbar-thumb {
  background: var(--color-surface-secondary);
  border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-brand-primary);
}

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

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

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

/* Typography Helpers */
h1.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

h2.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  text-align: center;
}

.text-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 650px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.1rem 2.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-align: center;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-brand-accent), #059669);
  color: white;
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
  transform: scale(0.5);
  transition: transform var(--transition-normal);
  pointer-events: none;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(16, 185, 129, 0.6), var(--shadow-glow);
}

.btn-primary:hover::after {
  transform: scale(1.2);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-brand-primary);
  border: 2px solid var(--color-surface-secondary);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--color-brand-secondary);
  color: var(--color-brand-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Header */
header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 999;
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-brand-primary);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--color-brand-accent);
}

.desktop-nav {
  display: none;
}

.mobile-menu-btn {
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--color-brand-primary);
  cursor: pointer;
  padding: 0.5rem;
}

@media(min-width: 900px) {
  .desktop-nav {
    display: flex;
    gap: 2.2rem;
    align-items: center;
  }
  .desktop-nav a {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.95rem;
  }
  .desktop-nav a:hover {
    color: var(--color-brand-accent);
  }
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  height: calc(100vh - 80px);
  background: var(--color-surface);
  padding: 2.5rem 2rem;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  z-index: 998;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu a {
  font-size: 1.35rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-surface-secondary);
  padding-bottom: 0.8rem;
  color: var(--color-brand-primary);
}

/* Prominent Ad Badge & Promo Bar */
.prominent-ad-badge {
  background: #020617;
  color: #94A3B8;
  text-align: center;
  padding: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  z-index: 1001;
  position: relative;
}

.promo-bar {
  background: linear-gradient(90deg, #0f172a, #1e293b, #0f172a);
  color: white;
  padding: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  overflow: hidden;
  position: relative;
  z-index: 1000;
  border-bottom: 2px solid var(--color-brand-accent);
}

.promo-grid {
  display: flex;
  justify-content: center;
  gap: 3rem;
  animation: ticker 25s linear infinite;
}

.promo-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

/* Global Sections */
section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4.5rem auto;
}

.section-header .subtitle {
  display: inline-block;
  font-weight: 700;
  color: var(--color-brand-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  margin-bottom: 0.8rem;
}

/* Hero Section */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  background-color: var(--color-surface-dark);
  color: white;
  padding: 4rem 0 6rem 0;
  overflow: hidden;
}

.hero h1, .hero p, .hero span {
  color: white;
}

.hero h1 span {
  color: var(--color-brand-accent);
  background: linear-gradient(135deg, var(--color-brand-accent), #6EE7B7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  display: inline-block;
  font-weight: 700;
  color: var(--color-brand-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

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

.hero-content {
  text-align: center;
  z-index: 2;
}

.hero-content p {
  color: var(--color-text-light-muted);
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-image-container {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.product-image-frame {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, rgba(15, 23, 42, 0.4) 70%);
  border-radius: 50%;
  padding: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: float 6s ease-in-out infinite;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.product-image-frame img {
  width: 100%;
  max-width: 380px;
  filter: drop-shadow(0 15px 25px rgba(0,0,0,0.5));
  transition: transform var(--transition-slow);
}

.product-image-frame:hover img {
  transform: scale(1.05) rotate(3deg);
}

.floating-badge {
  position: absolute;
  top: 5%;
  right: -5%;
  background: rgba(30, 41, 59, 0.85);
  backdrop-filter: blur(8px);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(16, 185, 129, 0.2);
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: float 7s ease-in-out infinite reverse;
}

.floating-badge span {
  font-size: 1.8rem;
  color: var(--color-brand-accent) !important;
  font-weight: 800;
}

@media(min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    text-align: left;
  }
  .hero-content {
    text-align: left;
  }
  .hero {
    min-height: 85vh;
  }
}

/* Trust Bar */
.trust-bar {
  background: var(--color-surface);
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--color-surface-secondary);
}

.trust-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: var(--color-brand-primary);
  font-size: 0.95rem;
}

.trust-icon {
  color: var(--color-brand-accent);
  font-size: 1.35rem;
}

/* Problem Section */
.problem-section {
  background-color: var(--color-surface);
}

.problem-list {
  list-style: none;
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.problem-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.problem-list li strong {
  color: var(--color-text-main);
}

.problem-list-icon {
  color: var(--color-danger);
  font-size: 1.3rem;
  line-height: 1.2;
}

/* Lifestyle Section */
.lifestyle-section {
  background-color: var(--color-base);
}

.lifestyle-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5rem;
  align-items: center;
}

.image-mask-organic {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  border: 4px solid white;
}

.image-mask-organic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.image-mask-organic:hover img {
  transform: scale(1.04);
}

@media(min-width: 900px) {
  .lifestyle-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Technology / Materials Section */
.tech-section {
  background-color: var(--color-surface-dark);
  color: white;
}

.tech-section .section-title, .tech-section h3 {
  color: white;
}

.tech-section .text-lead {
  color: var(--color-text-light-muted);
}

.tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
}

@media(min-width: 768px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media(min-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tech-card {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2.2rem 1.8rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.tech-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-8px);
  border-color: var(--color-brand-accent);
  box-shadow: var(--shadow-glow);
}

.tech-card h3 {
  margin-bottom: 0.8rem;
  font-size: 1.25rem;
}

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

.tech-icon {
  font-size: 2.5rem;
  margin-bottom: 1.2rem;
  display: inline-block;
}

.materials-diagram {
  text-align: center;
  margin-top: 5rem;
}

.materials-diagram img {
  max-width: 750px;
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,0.1);
}

/* Sizing Section */
.sizing-section {
  background-color: var(--color-surface);
}

.sizing-container {
  max-width: 800px;
  margin: 0 auto;
}

.sizing-instruction {
  background: var(--color-base);
  border-left: 4px solid var(--color-brand-secondary);
  padding: 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 2.5rem;
}

.sizing-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.sizing-table th {
  background: var(--color-brand-primary);
  color: white;
  font-weight: 700;
  text-align: left;
  padding: 1.2rem 1.5rem;
  font-family: var(--font-heading);
}

.sizing-table td {
  padding: 1.2rem 1.5rem;
  background: white;
  border-bottom: 1px solid var(--color-surface-secondary);
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

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

.sizing-table tr:hover td {
  background: var(--color-base);
  color: var(--color-text-main);
}

/* Benefits Section */
.benefits-section {
  background-color: var(--color-base);
}

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

@media(min-width: 768px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.benefit-card {
  background: var(--color-surface);
  padding: 3rem 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  text-align: center;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.benefit-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.2);
}

.benefit-card h3 {
  margin-bottom: 1rem;
  font-size: 1.35rem;
}

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

.benefit-card-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: inline-block;
}

/* Science Section */
.science-section {
  background-color: var(--color-surface);
}

.editorial-block {
  padding: 4rem 3rem;
  background: var(--color-base);
  border-left: 5px solid var(--color-brand-accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin: 2rem 0;
  box-shadow: var(--shadow-sm);
}

.editorial-block h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.scientific-ref-card {
  background: var(--color-surface);
  padding: 1.8rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-surface-secondary);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
  transition: all var(--transition-fast);
}

.scientific-ref-card:hover {
  transform: translateX(5px);
  border-color: var(--color-brand-secondary);
}

.scientific-ref-card strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
  color: var(--color-brand-primary);
}

.scientific-ref-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.scientific-ref-card a {
  color: var(--color-brand-secondary);
  font-weight: 700;
  font-size: 0.9rem;
}

.scientific-ref-card a:hover {
  text-decoration: underline;
}

/* Reviews / Social Proof */
.reviews-section {
  background-color: var(--color-base);
}

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

@media(min-width: 768px) {
  .reviews-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.review-card {
  background: var(--color-surface);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(226, 232, 240, 0.8);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: var(--color-gold);
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.review-text {
  font-style: italic;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.review-author {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-brand-primary);
}

.review-badge {
  font-size: 0.8rem;
  color: var(--color-brand-accent);
  font-weight: 600;
  margin-top: 0.2rem;
}

/* Product Showcase (landing details info) */
.product-showcase {
  text-align: center;
  padding: 6rem 0;
  background-color: var(--color-surface);
}

.showcase-container {
  position: relative;
  max-width: 500px;
  margin: 0 auto 4rem auto;
}

.showcase-label {
  position: absolute;
  background: var(--color-surface);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-brand-primary);
  border: 1px solid rgba(226,232,240,0.8);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: float 5s ease-in-out infinite;
}

.label-1 { top: 15%; left: -15%; animation-delay: 0s; }
.label-2 { top: 55%; right: -20%; animation-delay: 1.2s; }
.label-3 { bottom: 10%; left: -5%; animation-delay: 2.4s; }

/* Purchase Section */
.purchase-section {
  background: var(--color-base);
  padding: 6rem 0;
}

.purchase-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  max-width: 1100px;
  margin: 0 auto;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

@media(min-width: 900px) {
  .purchase-card {
    grid-template-columns: 0.95fr 1.05fr;
  }
}

.purchase-image {
  background-color: var(--color-surface-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 3rem;
  position: relative;
}

.purchase-image img {
  width: 100%;
  max-width: 320px;
  filter: drop-shadow(0 20px 30px rgba(0,0,0,0.6));
  animation: float 6s ease-in-out infinite;
}

.purchase-image-details {
  margin-top: 3rem;
  width: 100%;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
}

.purchase-detail-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  color: var(--color-text-light-muted);
}

.purchase-detail-row strong {
  color: white;
}

.purchase-details {
  padding: 3.5rem 3rem;
  display: flex;
  flex-direction: column;
}

.savings-badge {
  background: rgba(16, 185, 129, 0.15);
  color: #069669;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.85rem;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Pricing Grid Packages */
.pricing-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 2rem 0;
}

.price-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border: 2px solid var(--color-surface-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.price-card:hover {
  border-color: var(--color-brand-secondary);
  background-color: rgba(59, 130, 246, 0.02);
}

.price-card.selected {
  border-color: var(--color-brand-accent);
  background-color: rgba(16, 185, 129, 0.03);
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.price-card input[type="radio"] {
  display: none; /* Hide real radio, style card itself */
}

.price-card-custom-radio {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--color-surface-secondary);
  margin-right: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.price-card.selected .price-card-custom-radio {
  border-color: var(--color-brand-accent);
}

.price-card.selected .price-card-custom-radio::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-brand-accent);
}

.price-card-left {
  display: flex;
  align-items: center;
}

.price-card-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text-main);
  margin-bottom: 0.15rem;
}

.price-card-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

.price-card-amount {
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-brand-primary);
  font-family: var(--font-heading);
}

.price-card-old-amount {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.price-card-ribbon {
  position: absolute;
  top: -12px;
  right: 1.5rem;
  background: var(--color-brand-accent);
  color: white;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Sizing Selector */
.size-selector-container {
  margin-bottom: 2rem;
  text-align: left;
}

.size-selector-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text-main);
  margin-bottom: 0.8rem;
  display: block;
}

.size-radio-group {
  display: flex;
  gap: 1rem;
}

.size-btn {
  flex: 1;
  text-align: center;
  padding: 1rem;
  border: 2px solid var(--color-surface-secondary);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: white;
}

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

.size-radio-group input[type="radio"] {
  display: none;
}

.size-radio-group input[type="radio"]:checked + .size-btn {
  border-color: var(--color-brand-accent);
  color: var(--color-brand-accent);
  background-color: rgba(16, 185, 129, 0.04);
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.1);
}

/* Order Form Styling */
.order-form-container {
  background: var(--color-base);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-surface-secondary);
}

.order-form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.order-form-group label {
  display: block;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.order-form-control {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--color-surface-secondary);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
  color: var(--color-text-main);
  background-color: white;
}

.order-form-control:focus {
  outline: none;
  border-color: var(--color-brand-accent);
}

.payment-methods {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.8rem;
}

.payment-method-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem;
  border: 2px solid var(--color-surface-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: white;
}

.payment-method-card:hover {
  background-color: var(--color-base);
}

.payment-method-card input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-brand-primary);
}

.purchase-btn-container {
  margin-top: 2rem;
}

.security-icons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.8rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

/* FAQ Accordion */
.faq-section {
  background: var(--color-surface);
}

.faq-container {
  max-width: 850px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-surface-secondary);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  background-color: var(--color-base);
  transition: all var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-brand-accent);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1.4rem 1.8rem;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-brand-primary);
  cursor: pointer;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background-color: white;
}

.faq-answer-inner {
  padding: 1.4rem 1.8rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-icon {
  font-size: 1.2rem;
  font-weight: 400;
  transition: transform var(--transition-fast);
  color: var(--color-brand-accent);
}

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

/* Footer */
footer {
  background: var(--color-surface-dark);
  color: white;
  padding: 5rem 0 3rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media(min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-logo {
  color: white;
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 1.2rem;
  letter-spacing: -0.01em;
}

.footer-logo span {
  color: var(--color-brand-accent);
}

.footer-p {
  color: var(--color-text-light-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-title {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: white;
  font-weight: 700;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: var(--color-text-light-muted);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-brand-accent);
  padding-left: 3px;
}

.footer-disclaimers {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 2.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-light-muted);
  line-height: 1.7;
}

.footer-disclaimers p {
  margin-bottom: 0.8rem;
}

/* Sticky Mobile CTA */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 1.5rem;
  box-shadow: 0 -8px 30px rgba(0,0,0,0.08);
  z-index: 997;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
  display: flex;
  justify-content: center;
  align-items: center;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
}

.sticky-cta.visible {
  transform: translateY(0);
}

@media(min-width: 900px) {
  .sticky-cta {
    display: none;
  }
}

/* Keyframe Animations */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
  100% { transform: translateY(0px); }
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Scroll Reveal classes */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Subpages Core styles */
.page-header {
  background: var(--color-surface-dark);
  color: white;
  padding: 7rem 0 4rem 0;
  text-align: center;
}

.page-header h1, .page-header p {
  color: white;
}

.page-content {
  padding: 5rem 0;
  background-color: var(--color-base);
}

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

.prose h2 {
  margin: 2.5rem 0 1.2rem 0;
  font-size: 1.8rem;
  color: var(--color-brand-primary);
}

.prose p {
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.prose ul {
  margin: 0 0 1.8rem 2rem;
  color: var(--color-text-muted);
}

.prose li {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}