/* ==========================================================================
   AI Badge Design System
   Helios-derived (deep blue + gold) harmonised with Apple HIG cleanliness
   ========================================================================== */

/* Premium Typography */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:wght@700;900&display=swap');

/* Reset & Variables
   ========================================================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Premium Blue Gradient System */
  --blue-deep: #000036;
  --blue-royal: #02066F;
  --blue-electric: #050c91;
  --blue-vivid: #001489;
  --blue-accent: #0066ff;
  --blue-light: #4080ff;
  --blue-glow: rgba(0, 102, 255, 0.3);

  /* Gold Accents */
  --gold-premium: #D4AF37;
  --gold-rich: #B8860B;
  --gold-light: #F5E7A0;
  --gold-glow: rgba(212, 175, 55, 0.4);

  /* Neutrals */
  --white: #ffffff;
  --off-white: #FAFBFF;
  --grey-light: #E8ECF3;
  --grey-medium: #D1D5DB;
  --grey-dark: #6B7280;
  --black-soft: #0A0E27;
  --black-rich: #030712;

  /* Shadows & Effects */
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 10px 40px rgba(0, 0, 0, 0.12);
  --shadow-deep: 0 20px 60px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 80px rgba(0, 102, 255, 0.3);

  /* Timing */
  --ease-default: cubic-bezier(0.25, 0.1, 0.25, 1.0);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1.0);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* Spacing (4pt grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 20px;
  --space-5: 32px;
  --space-6: 44px;
  --space-7: 64px;

  scroll-behavior: smooth;
}

/* Base Styles
   ========================================================================== */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  line-height: 1.6;
  color: var(--black-soft);
  background: var(--white);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--blue-light);
}

/* Typography System
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2.25rem, 4.5vw, 3.6rem);
  margin-bottom: 1.5rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 1rem;
}

h4 {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  margin-bottom: 0.75rem;
}

.serif {
  font-family: 'Playfair Display', serif;
  font-weight: 900;
}

.gradient-text {
  background: linear-gradient(135deg, var(--blue-electric) 0%, var(--blue-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-gold {
  background: linear-gradient(135deg, var(--gold-premium) 0%, var(--gold-rich) 50%, var(--gold-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  font-size: clamp(1.2rem, 2vw, 1.4rem);
  color: var(--grey-dark);
  margin-bottom: 2rem;
  line-height: 1.8;
  font-weight: 400;
}

/* Container
   ========================================================================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 4%;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 4%;
}

/* Navigation
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s var(--ease-smooth);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-soft);
}

.header.dark {
  background: rgba(0, 0, 54, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 4%;
  max-width: 1400px;
  margin: 0 auto;
  min-height: var(--space-6);
}

.nav-logo {
  font-size: 1.75rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue-electric) 0%, var(--blue-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: transform 0.3s var(--ease-spring);
  cursor: pointer;
  text-decoration: none;
}

.nav-logo:hover {
  transform: scale(1.05);
  background: linear-gradient(90deg, var(--gold-premium) 0%, var(--gold-light) 50%, var(--gold-premium) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: goldShimmer 3s ease-in-out infinite;
}

@keyframes goldShimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--black-soft);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  transition: color 0.3s ease;
  padding: var(--space-2) 0;
  min-height: var(--space-6);
  display: flex;
  align-items: center;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--blue-accent);
  transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.header.dark .nav-links a {
  color: rgba(255, 255, 255, 0.85);
}

.header.dark .nav-links a:hover {
  color: var(--gold-premium);
}

.header.dark .nav-links a::after {
  background: var(--gold-premium);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
  min-width: var(--space-6);
  min-height: var(--space-6);
  justify-content: center;
  align-items: center;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--black-soft);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.header.dark .nav-toggle span {
  background: var(--white);
}

/* Hero Section
   ========================================================================== */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-royal) 50%, var(--blue-electric) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cdefs%3E%3Cpattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"%3E%3Cpath d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/%3E%3C/pattern%3E%3C/defs%3E%3Crect width="100%25" height="100%25" fill="url(%23grid)" /%3E%3C/svg%3E');
  opacity: 0.3;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 1;
}

.particle {
  position: absolute;
  background: var(--blue-accent);
  border-radius: 50%;
  opacity: 0.3;
  animation: particleFloat 20s infinite ease-in-out;
}

@keyframes particleFloat {
  0%, 100% { transform: translateY(0) translateX(0) scale(1); }
  33% { transform: translateY(-30px) translateX(30px) scale(1.1); }
  66% { transform: translateY(30px) translateX(-30px) scale(0.9); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(3rem, 7vw, 5.5rem);
  margin-bottom: 1.5rem;
  animation: slideUp 1s ease-out 0.2s backwards;
  background: none;
  -webkit-text-fill-color: var(--white);
}

.hero .highlight {
  background: linear-gradient(135deg, var(--gold-premium) 0%, var(--gold-rich) 50%, var(--gold-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 900;
}

.hero-subtitle {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  font-weight: 300;
  line-height: 1.5;
  animation: slideUp 1s ease-out 0.4s backwards;
}

.hero-badge {
  display: inline-block;
  padding: 0.6rem 1.75rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: var(--gold-premium);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  animation: slideDown 1s ease-out;
}

.hero-cta {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  animation: slideUp 1s ease-out 0.6s backwards;
}

/* Section transition: bottom fade overlay */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--white));
  z-index: 3;
}

/* Animations
   ========================================================================== */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--ease-smooth);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s var(--ease-smooth);
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s var(--ease-smooth);
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Sections
   ========================================================================== */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-light {
  background: linear-gradient(to bottom, var(--white) 0%, var(--off-white) 100%);
}

.section-gray {
  background: linear-gradient(to bottom, var(--off-white) 0%, var(--grey-light) 50%, var(--off-white) 100%);
}

.section-dark {
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-royal) 50%, var(--blue-electric) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.section-dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cdefs%3E%3Cpattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"%3E%3Cpath d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/%3E%3C/pattern%3E%3C/defs%3E%3Crect width="100%25" height="100%25" fill="url(%23grid)" /%3E%3C/svg%3E');
  pointer-events: none;
}

/* Inter-section fade transitions */
.section-light + .section-gray {
  border-top: none;
}

.section + .section-dark::before {
  background: linear-gradient(to bottom, var(--white) 0%, transparent 60px),
    url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cdefs%3E%3Cpattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"%3E%3Cpath d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/%3E%3C/pattern%3E%3C/defs%3E%3Crect width="100%25" height="100%25" fill="url(%23grid)" /%3E%3C/svg%3E');
}

.section-dark + .section-light,
.section-dark + .section-gray,
.section-dark + .section {
  position: relative;
}

.section-dark + .section-light::before,
.section-dark + .section-gray::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, var(--blue-electric), var(--white));
  z-index: -1;
}

.section-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.03;
  background-image: radial-gradient(circle at 1px 1px, var(--blue-accent) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-7);
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header .lead {
  margin-bottom: 0;
}

/* Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s var(--ease-smooth);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
  min-height: var(--space-6);
  gap: var(--space-2);
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-rich) 0%, var(--gold-premium) 50%, var(--gold-light) 100%);
  color: var(--black-soft);
  box-shadow: 0 4px 20px var(--gold-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--gold-glow);
  color: var(--black-soft);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background: transparent;
  color: var(--blue-accent);
  border: 2px solid var(--blue-accent);
  padding: calc(0.875rem - 2px) calc(2rem - 2px);
}

.btn-secondary:hover {
  background: var(--blue-accent);
  color: var(--white);
  box-shadow: 0 4px 20px var(--blue-glow);
  transform: translateY(-2px);
}

.btn-secondary.light {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary.light:hover {
  background: var(--white);
  color: var(--blue-electric);
  border-color: var(--white);
}

.btn-text {
  background: none;
  border: none;
  color: var(--blue-accent);
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-2) 0;
  font-size: 1rem;
  font-family: inherit;
  transition: color 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--space-6);
}

.btn-text:hover {
  color: var(--blue-light);
}

.btn-text::after {
  content: '\2192';
  transition: transform 0.3s var(--ease-spring);
}

.btn-text:hover::after {
  transform: translateX(4px);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  min-height: 36px;
}

.btn-lg {
  padding: 1.125rem 2.75rem;
  font-size: 1.1rem;
}

/* Cards
   ========================================================================== */
.card {
  background: var(--white);
  border-radius: 14px;
  padding: 2rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.4s var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-accent), var(--blue-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-medium);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-dark {
  background: rgba(10, 14, 39, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 14px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  color: var(--white);
  transition: all 0.4s var(--ease-smooth);
}

.card-dark:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1.25rem;
  display: block;
}

/* Pricing Cards
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  align-items: start;
}

.pricing-card {
  background: var(--white);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
  transition: all 0.4s var(--ease-smooth);
  border: 2px solid var(--grey-medium);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-royal) 100%);
  color: var(--white);
  border: none;
  box-shadow: 0 20px 60px rgba(0, 36, 147, 0.35);
  transform: scale(1.03);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-deep);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.pricing-card .price {
  font-size: 3.5rem;
  font-weight: 900;
  margin: 1.5rem 0;
  background: linear-gradient(135deg, var(--blue-electric) 0%, var(--blue-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pricing-card.featured .price {
  color: var(--gold-premium);
  -webkit-text-fill-color: var(--gold-premium);
  background: none;
}

.price-old {
  display: inline-block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--grey-dark);
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  text-decoration-color: rgba(0, 0, 0, 0.35);
  margin-bottom: 0.25rem;
}

.price-note {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-accent);
  margin-top: 0.25rem;
}

.pricing-card .features-list {
  list-style: none;
  text-align: left;
  margin: 1.5rem 0;
  flex-grow: 1;
}

.pricing-card .features-list li {
  padding: 0.5rem 0;
  padding-left: 1.75rem;
  position: relative;
  font-size: 0.95rem;
}

.pricing-card .features-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--blue-accent);
  font-weight: 700;
}

.pricing-card.featured .features-list li::before {
  color: var(--gold-premium);
}

/* Badges (labels)
   ========================================================================== */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-gold {
  background: linear-gradient(135deg, var(--gold-rich), var(--gold-premium));
  color: var(--black-soft);
}

.badge-blue {
  background: linear-gradient(135deg, var(--blue-electric), var(--blue-accent));
  color: var(--white);
}

.badge-green {
  background: linear-gradient(135deg, #059669, #10b981);
  color: var(--white);
}

.badge-gray {
  background: var(--grey-light);
  color: var(--grey-dark);
}

.badge-tier-explorer {
  background: linear-gradient(135deg, #6366f1, #818cf8);
  color: var(--white);
}

.badge-tier-practitioner {
  background: linear-gradient(135deg, var(--blue-electric), var(--blue-accent));
  color: var(--white);
}

.badge-tier-leader {
  background: linear-gradient(135deg, var(--gold-rich), var(--gold-premium));
  color: var(--black-soft);
}

/* Company Scroller
   ========================================================================== */
.company-scroller {
  overflow: hidden;
  position: relative;
  padding: 2rem 0;
}

.company-scroller::before,
.company-scroller::after {
  content: '';
  position: absolute;
  top: 0;
  width: 120px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.company-scroller::before {
  left: 0;
  background: linear-gradient(to right, var(--white), transparent);
}

.company-scroller::after {
  right: 0;
  background: linear-gradient(to left, var(--white), transparent);
}

.section-dark .company-scroller::before {
  background: linear-gradient(to right, var(--blue-deep), transparent);
}

.section-dark .company-scroller::after {
  background: linear-gradient(to left, var(--blue-electric), transparent);
}

.scroller-track {
  display: flex;
  gap: 4rem;
  animation: scroll 30s linear infinite;
  width: max-content;
}

.scroller-track img {
  height: 40px;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: all 0.4s ease;
}

.scroller-track img:hover {
  opacity: 1;
  filter: grayscale(0%);
}

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

/* Accordion (FAQ)
   ========================================================================== */
.accordion {
  max-width: 800px;
  margin: 0 auto;
}

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

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  background: none;
  border: none;
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--black-soft);
  text-align: left;
  transition: color 0.3s ease;
  min-height: var(--space-6);
}

.accordion-header:hover {
  color: var(--blue-accent);
}

.accordion-icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
  margin-left: var(--space-3);
}

.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s var(--ease-default);
}

.accordion-icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion-icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion-item.active .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-default), padding 0.4s var(--ease-default);
}

.accordion-item.active .accordion-body {
  max-height: 500px;
  padding-bottom: 1.5rem;
}

.accordion-body p {
  color: var(--grey-dark);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* Testimonial Carousel
   ========================================================================== */
.testimonial-carousel {
  position: relative;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  transition: transform 0.5s var(--ease-smooth);
}

.testimonial-slide {
  min-width: 100%;
  padding: 0 var(--space-5);
}

.testimonial {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.testimonial::before {
  content: '\201C';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 5rem;
  color: var(--blue-accent);
  opacity: 0.1;
  font-family: 'Playfair Display', serif;
  line-height: 1;
}

.testimonial blockquote {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--black-soft);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-author img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author-info strong {
  display: block;
  font-size: 0.95rem;
}

.testimonial-author-info span {
  font-size: 0.85rem;
  color: var(--grey-dark);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: 2rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--grey-medium);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.carousel-dot.active {
  background: var(--blue-accent);
  transform: scale(1.3);
}

/* Radar Chart & Assessment
   ========================================================================== */
.radar-container {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
  aspect-ratio: 1;
}

.radar-container canvas {
  width: 100% !important;
  height: 100% !important;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 600px;
  margin: 0 auto;
}

.slider-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.slider-item label {
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-item label span {
  font-weight: 400;
  color: var(--grey-dark);
  font-size: 0.85rem;
}

.slider-item input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--grey-light);
  outline: none;
  transition: background 0.3s ease;
}

.slider-item input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-electric), var(--blue-accent));
  cursor: pointer;
  box-shadow: 0 2px 8px var(--blue-glow);
  transition: transform 0.2s var(--ease-spring);
}

.slider-item input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-item input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-electric), var(--blue-accent));
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px var(--blue-glow);
}

/* Score Ring
   ========================================================================== */
.score-ring {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.score-ring svg {
  transform: rotate(-90deg);
}

.score-ring-bg {
  fill: none;
  stroke: var(--grey-light);
  stroke-width: 8;
}

.score-ring-fill {
  fill: none;
  stroke: var(--blue-accent);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s var(--ease-smooth);
}

.score-ring-fill.gold {
  stroke: var(--gold-premium);
}

.score-ring-value {
  position: absolute;
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--black-soft);
}

.score-ring-label {
  position: absolute;
  bottom: -8px;
  font-size: 0.75rem;
  color: var(--grey-dark);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Progress Bar
   ========================================================================== */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--grey-light);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--blue-electric), var(--blue-accent));
  transition: width 0.8s var(--ease-smooth);
  position: relative;
}

.progress-bar-fill.gold {
  background: linear-gradient(90deg, var(--gold-rich), var(--gold-premium));
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: progressShine 2s infinite;
}

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

.progress-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Forms
   ========================================================================== */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--black-soft);
}

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--grey-light);
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--black-soft);
  background: var(--white);
  transition: all 0.3s var(--ease-default);
  min-height: var(--space-6);
}

.form-input:focus {
  outline: none;
  border-color: var(--blue-accent);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
}

.form-input::placeholder {
  color: var(--grey-medium);
}

.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--grey-light);
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--black-soft);
  background: var(--white);
  transition: all 0.3s var(--ease-default);
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--blue-accent);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
}

.form-hint {
  margin-top: var(--space-1);
  font-size: 0.8rem;
  color: var(--grey-dark);
}

.form-error {
  margin-top: var(--space-1);
  font-size: 0.8rem;
  color: #dc2626;
  font-weight: 500;
}

/* Auth Container (Login)
   ========================================================================== */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-royal) 50%, var(--blue-electric) 100%);
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
}

.auth-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cdefs%3E%3Cpattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"%3E%3Cpath d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/%3E%3C/pattern%3E%3C/defs%3E%3Crect width="100%25" height="100%25" fill="url(%23grid)" /%3E%3C/svg%3E');
  pointer-events: none;
}

.auth-card {
  background: var(--white);
  border-radius: 20px;
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 1;
  animation: slideUp 0.6s ease-out;
}

.auth-card .logo-mark {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-card .logo-mark h1 {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--blue-electric) 0%, var(--blue-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.auth-card .logo-mark p {
  color: var(--grey-dark);
  font-size: 0.95rem;
}

.auth-card .form-input {
  margin-bottom: 0;
}

.auth-card .btn-primary {
  width: 100%;
  margin-top: var(--space-3);
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
}

.auth-footer a {
  font-size: 0.9rem;
  color: var(--blue-accent);
  font-weight: 500;
}

.auth-branding {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  opacity: 0.6;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.auth-error {
  background: #fef2f2;
  color: #dc2626;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-3);
  display: none;
  border: 1px solid #fecaca;
}

.auth-error.visible {
  display: block;
  animation: slideDown 0.3s ease-out;
}

/* Portal Layout
   ========================================================================== */
.portal-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.portal-nav {
  background: linear-gradient(180deg, var(--blue-deep) 0%, var(--blue-royal) 100%);
  padding: 2rem 0;
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.portal-nav-logo {
  padding: 0 1.5rem;
  margin-bottom: 2rem;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--white);
}

.portal-nav-links {
  list-style: none;
  flex-grow: 1;
}

.portal-nav-links li {
  margin-bottom: 2px;
}

.portal-nav-links a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
  min-height: var(--space-6);
}

.portal-nav-links a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.portal-nav-links a.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border-left-color: var(--gold-premium);
}

.portal-nav-links a .icon {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
}

.portal-nav-footer {
  padding: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.portal-content {
  grid-column: 2;
  padding: 2.5rem 3rem;
  background: var(--off-white);
  min-height: 100vh;
}

.portal-content-header {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.portal-content-header h1 {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--black-soft) 0%, var(--blue-royal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Week Cards (Portal)
   ========================================================================== */
.weeks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.week-card {
  background: var(--white);
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.3s var(--ease-smooth);
  cursor: pointer;
}

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

.week-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.week-card-number {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue-accent);
}

.week-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.week-card p {
  font-size: 0.9rem;
  color: var(--grey-dark);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.week-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.week-card.locked {
  opacity: 0.5;
  pointer-events: none;
}

.week-card.current {
  border-color: var(--blue-accent);
  border-width: 2px;
}

.week-card.completed {
  border-color: #10b981;
}

/* Exercise Items
   ========================================================================== */
.exercise-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.exercise-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: 1rem 1.25rem;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.2s ease;
}

.exercise-item:hover {
  background: var(--off-white);
}

.exercise-item.completed {
  opacity: 0.7;
}

.exercise-checkbox {
  width: 22px;
  height: 22px;
  border: 2px solid var(--grey-medium);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: all 0.2s var(--ease-spring);
  background: var(--white);
}

.exercise-checkbox:hover {
  border-color: var(--blue-accent);
}

.exercise-checkbox.checked {
  background: var(--blue-accent);
  border-color: var(--blue-accent);
}

.exercise-checkbox.checked::after {
  content: '\2713';
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
}

.exercise-item.completed .exercise-title {
  text-decoration: line-through;
  color: var(--grey-dark);
}

.exercise-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.exercise-desc {
  font-size: 0.85rem;
  color: var(--grey-dark);
  line-height: 1.5;
}

/* Alert Banner
   ========================================================================== */
.alert-banner {
  padding: 0.75rem 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  position: relative;
  z-index: 1001;
}

.alert-banner-info {
  background: linear-gradient(90deg, var(--blue-electric), var(--blue-accent));
  color: var(--white);
}

.alert-banner-gold {
  background: linear-gradient(90deg, var(--gold-rich), var(--gold-premium));
  color: var(--black-soft);
}

.alert-banner-success {
  background: linear-gradient(90deg, #059669, #10b981);
  color: var(--white);
}

.alert-banner .close-btn {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 1.2rem;
  opacity: 0.7;
  transition: opacity 0.2s ease;
  padding: var(--space-2);
  min-width: var(--space-6);
  min-height: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.alert-banner .close-btn:hover {
  opacity: 1;
}

/* Dimension Grid (Six Dimensions)
   ========================================================================== */
.dimension-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.dimension-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--white);
  border-radius: 14px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.3s var(--ease-smooth);
}

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

.dimension-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.dimension-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.dimension-card p {
  font-size: 0.85rem;
  color: var(--grey-dark);
  line-height: 1.5;
}

.dimension-score {
  font-size: 2rem;
  font-weight: 900;
  margin-top: 0.75rem;
  background: linear-gradient(135deg, var(--blue-electric), var(--blue-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Pipeline Steps
   ========================================================================== */
.pipeline-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  max-width: 700px;
  margin: 0 auto;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  flex: 1;
}

.pipeline-step-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grey-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--grey-dark);
  transition: all 0.4s var(--ease-smooth);
  position: relative;
  z-index: 2;
}

.pipeline-step.active .pipeline-step-circle {
  background: linear-gradient(135deg, var(--blue-electric), var(--blue-accent));
  color: var(--white);
  box-shadow: 0 4px 16px var(--blue-glow);
}

.pipeline-step.completed .pipeline-step-circle {
  background: #10b981;
  color: var(--white);
}

.pipeline-step-label {
  margin-top: var(--space-2);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--grey-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pipeline-step.active .pipeline-step-label {
  color: var(--blue-accent);
}

.pipeline-step.completed .pipeline-step-label {
  color: #10b981;
}

.pipeline-connector {
  flex: 1;
  height: 2px;
  background: var(--grey-light);
  position: relative;
  top: -12px;
}

.pipeline-connector.completed {
  background: #10b981;
}

.pipeline-connector.active {
  background: linear-gradient(90deg, #10b981, var(--blue-accent));
}

/* Credential Badge
   ========================================================================== */
.credential-badge {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), rgba(212, 175, 55, 0.1));
  border: 2px solid var(--gold-premium);
  border-radius: 16px;
  max-width: 500px;
}

.credential-badge-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-rich), var(--gold-premium));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
  box-shadow: 0 4px 20px var(--gold-glow);
}

.credential-badge-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.credential-badge-info p {
  font-size: 0.9rem;
  color: var(--grey-dark);
}

.credential-badge-info .badge {
  margin-top: 0.5rem;
}

/* Footer
   ========================================================================== */
.footer {
  background: linear-gradient(135deg, var(--black-rich) 0%, var(--blue-deep) 100%);
  color: var(--white);
  padding: 4rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-accent), transparent);
}

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

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  max-width: 350px;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.footer h4 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
  color: var(--gold-premium);
  font-weight: 700;
}

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

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

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* Utilities
   ========================================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-7 { margin-top: var(--space-7); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-7 { margin-bottom: var(--space-7); }

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

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

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Responsive
   ========================================================================== */

/* Large screens */
@media (max-width: 1200px) {
  .dimension-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

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

  .portal-content {
    padding: 2rem;
  }
}

/* Medium screens */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 1.5rem;
    gap: 0;
    box-shadow: var(--shadow-medium);
    border-top: 1px solid var(--grey-light);
  }

  .header.dark .nav-links.open {
    background: var(--blue-deep);
    border-top-color: rgba(255, 255, 255, 0.08);
  }

  .nav-links.open a {
    padding: 1rem 0;
    border-bottom: 1px solid var(--grey-light);
  }

  .header.dark .nav-links.open a {
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

  .pricing-card.featured {
    transform: none;
  }

  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }

  .pipeline-steps {
    flex-direction: column;
    gap: var(--space-3);
  }

  .pipeline-connector {
    width: 2px;
    height: 24px;
    top: 0;
  }

  .portal-layout {
    grid-template-columns: 1fr;
  }

  .portal-nav {
    position: relative;
    width: 100%;
    height: auto;
    flex-direction: row;
    padding: 1rem;
    overflow-x: auto;
  }

  .portal-nav-links {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
  }

  .portal-nav-links a {
    padding: 0.5rem 1rem;
    border-left: none;
    border-radius: 8px;
    white-space: nowrap;
    font-size: 0.85rem;
  }

  .portal-nav-links a.active {
    border-left: none;
    background: rgba(255, 255, 255, 0.15);
  }

  .portal-nav-footer {
    display: none;
  }

  .portal-content {
    grid-column: 1;
  }

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

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

  .section {
    padding: 3.5rem 0;
  }
}

/* Small screens */
@media (max-width: 680px) {
  .hero h1 {
    font-size: clamp(2.25rem, 8vw, 3.5rem);
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .dimension-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .dimension-card {
    padding: 1.25rem 1rem;
  }

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

  .credential-badge {
    flex-direction: column;
    text-align: center;
  }

  .auth-card {
    padding: 2rem 1.5rem;
  }

  .section {
    padding: 2.5rem 0;
  }

  .testimonial {
    padding: 1.5rem;
  }

  .portal-content {
    padding: 1.25rem;
  }

  .portal-content-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* Dark Mode
   ========================================================================== */
@media (prefers-color-scheme: dark) {
  :root {
    --white: #0f1117;
    --off-white: #161822;
    --grey-light: #1e2030;
    --grey-medium: #2d3048;
    --grey-dark: #9ca3af;
    --black-soft: #e5e7eb;
    --black-rich: #f3f4f6;

    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 10px 40px rgba(0, 0, 0, 0.4);
    --shadow-deep: 0 20px 60px rgba(0, 0, 0, 0.5);
  }

  body {
    background: #0f1117;
    color: #e5e7eb;
  }

  .header {
    background: rgba(15, 17, 23, 0.85);
    border-bottom-color: rgba(255, 255, 255, 0.06);
  }

  .header.scrolled {
    background: rgba(15, 17, 23, 0.95);
  }

  .nav-links a {
    color: #e5e7eb;
  }

  .nav-toggle span {
    background: #e5e7eb;
  }

  .nav-links.open {
    background: #161822;
    border-top-color: rgba(255, 255, 255, 0.06);
  }

  .nav-links.open a {
    border-bottom-color: rgba(255, 255, 255, 0.06);
  }

  .card {
    background: #161822;
    border-color: rgba(255, 255, 255, 0.06);
  }

  .card:hover {
    border-color: var(--blue-accent);
  }

  .week-card {
    background: #161822;
    border-color: rgba(255, 255, 255, 0.06);
  }

  .exercise-item {
    background: #161822;
    border-color: rgba(255, 255, 255, 0.06);
  }

  .exercise-item:hover {
    background: #1e2030;
  }

  .exercise-checkbox {
    background: #161822;
    border-color: #2d3048;
  }

  .testimonial {
    background: #161822;
  }

  .dimension-card {
    background: #161822;
    border-color: rgba(255, 255, 255, 0.06);
  }

  .pricing-card {
    background: #161822;
    border-color: rgba(255, 255, 255, 0.08);
  }

  .pricing-card .price {
    background: linear-gradient(135deg, var(--blue-light) 0%, var(--blue-accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
  }

  .form-input,
  .form-textarea {
    background: #161822;
    border-color: #2d3048;
    color: #e5e7eb;
  }

  .form-input:focus,
  .form-textarea:focus {
    border-color: var(--blue-accent);
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.15);
  }

  .auth-card {
    background: #161822;
  }

  .auth-card .logo-mark p {
    color: #9ca3af;
  }

  .accordion-header {
    color: #e5e7eb;
  }

  .accordion-body p {
    color: #9ca3af;
  }

  .accordion-item {
    border-bottom-color: rgba(255, 255, 255, 0.06);
  }

  .portal-content {
    background: #0f1117;
  }

  .portal-content-header h1 {
    background: linear-gradient(135deg, #e5e7eb 0%, var(--blue-light) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .slider-item input[type="range"] {
    background: #2d3048;
  }

  .progress-bar {
    background: #2d3048;
  }

  .score-ring-bg {
    stroke: #2d3048;
  }

  .score-ring-value {
    color: #e5e7eb;
  }

  .company-scroller::before {
    background: linear-gradient(to right, #0f1117, transparent);
  }

  .company-scroller::after {
    background: linear-gradient(to left, #0f1117, transparent);
  }

  .scroller-track img {
    filter: grayscale(100%) invert(1);
    opacity: 0.4;
  }

  .scroller-track img:hover {
    filter: none;
    opacity: 0.9;
  }

  /* Hero transition in dark mode */
  .hero::after {
    background: linear-gradient(to bottom, transparent, #0f1117);
  }

  .auth-error {
    background: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.3);
  }

  .section-light {
    background: linear-gradient(to bottom, #0f1117 0%, #161822 100%);
  }

  .section-gray {
    background: linear-gradient(to bottom, #161822 0%, #1e2030 50%, #161822 100%);
  }
}

/* Print
   ========================================================================== */
@media print {
  .header,
  .footer,
  .portal-nav,
  .alert-banner,
  .hero-particles,
  .btn {
    display: none !important;
  }

  .hero {
    min-height: auto;
    background: none !important;
    color: #000;
    padding: 2rem 0;
  }

  .hero h1 {
    color: #000;
    -webkit-text-fill-color: #000;
    background: none;
  }

  .section,
  .section-light,
  .section-gray,
  .section-dark {
    background: none !important;
    color: #000;
    padding: 1.5rem 0;
  }

  .card,
  .week-card,
  .dimension-card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  body {
    font-size: 12pt;
  }
}