/* ============================================
   Spectra Prism — White Glassmorphism Theme
   Based on macOS 26 Design Language
   ============================================ */

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

:root {
  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.85);
  --glass-bg-subtle: rgba(255, 255, 255, 0.45);
  --glass-bg-heavy: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(255, 255, 255, 0.45);
  --glass-border-subtle: rgba(255, 255, 255, 0.25);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
  --glass-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.1);
  --glass-shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
  --glass-blur: 20px;
  --glass-blur-lg: 40px;

  /* Colors */
  --color-accent: #007AFF;
  --color-accent-hover: #0066DD;
  --color-accent-light: rgba(0, 122, 255, 0.12);
  --color-success: #34C759;
  --color-warning: #FF9500;
  --color-danger: #FF3B30;
  --color-info: #5856D6;

  /* Text */
  --text-primary: #1D1D1F;
  --text-secondary: #6E6E73;
  --text-tertiary: #AEAEB2;
  --text-inverse: #FFFFFF;

  /* Backgrounds */
  --bg-base: #F2F2F7;
  --bg-gradient-start: #E8ECF4;
  --bg-gradient-end: #F8F9FC;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Font */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", sans-serif;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --- Animated Background --- */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: linear-gradient(135deg, #E8ECF4 0%, #F0E6F6 25%, #F8F9FC 50%, #E6F0F8 75%, #F2F2F7 100%);
}

.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 122, 255, 0.15), transparent 70%);
  top: -10%;
  right: -5%;
  animation-delay: 0s;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(175, 82, 222, 0.12), transparent 70%);
  bottom: 10%;
  left: -10%;
  animation-delay: -7s;
}

.orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(52, 199, 89, 0.1), transparent 70%);
  top: 40%;
  right: 20%;
  animation-delay: -14s;
}

.orb-4 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(255, 149, 0, 0.1), transparent 70%);
  top: 60%;
  left: 30%;
  animation-delay: -3s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(15px, 30px) scale(1.02); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Glass Card --- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow);
  transition: all 0.3s ease;
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  box-shadow: var(--glass-shadow-lg);
  transform: translateY(-2px);
}

.glass-card-subtle {
  background: var(--glass-bg-subtle);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-full);
}

/* --- Navigation --- */
.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(var(--glass-blur-lg));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg));
  border-bottom: 1px solid var(--glass-border-subtle);
  transition: all 0.3s ease;
}

.glass-nav.scrolled {
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
}

.nav-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.nav-title {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--color-accent) !important;
  color: var(--text-inverse) !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-full) !important;
  font-weight: 600 !important;
  transition: all 0.2s !important;
}

.nav-cta:hover {
  background: var(--color-accent-hover) !important;
  transform: scale(1.02);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px var(--space-lg) var(--space-4xl);
  max-width: 1200px;
  margin: 0 auto;
  gap: var(--space-3xl);
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-lg);
}

.gradient-text {
  background: linear-gradient(135deg, #007AFF 0%, #5856D6 40%, #AF52DE 70%, #FF2D55 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(0, 0, 0, 0.08);
}

/* Hero Visual */
.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo-container {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-2xl);
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 20px 60px rgba(0, 122, 255, 0.2));
  animation: logoFloat 6s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-glow {
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 122, 255, 0.15), rgba(175, 82, 222, 0.1), transparent 70%);
  filter: blur(40px);
  z-index: 1;
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}

.hero-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  animation: ringExpand 8s linear infinite;
}

.hero-ring-1 { width: 260px; height: 260px; animation-delay: 0s; }
.hero-ring-2 { width: 300px; height: 300px; animation-delay: -2.5s; }
.hero-ring-3 { width: 340px; height: 340px; animation-delay: -5s; }

@keyframes ringExpand {
  0% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 0.15; transform: scale(1.05); }
  100% { opacity: 0.4; transform: scale(0.9); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--text-inverse);
  box-shadow: 0 4px 16px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 6px 24px rgba(0, 122, 255, 0.4);
  transform: translateY(-1px);
}

.btn-glass {
  background: var(--glass-bg);
  color: var(--text-primary);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

.btn-glass:hover {
  background: var(--glass-bg-hover);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* --- Sections --- */
.section {
  padding: var(--space-4xl) 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.3);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-3xl);
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.icon-blue { background: rgba(0, 122, 255, 0.1); color: #007AFF; }
.icon-green { background: rgba(52, 199, 89, 0.1); color: #34C759; }
.icon-purple { background: rgba(88, 86, 214, 0.1); color: #5856D6; }
.icon-orange { background: rgba(255, 149, 0, 0.1); color: #FF9500; }
.icon-cyan { background: rgba(90, 200, 250, 0.1); color: #5AC8FA; }
.icon-red { background: rgba(255, 59, 48, 0.1); color: #FF3B30; }

/* --- Products Grid --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.product-card {
  padding: var(--space-xl);
  position: relative;
}

.product-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.product-type {
  display: block;
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.product-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.product-icon-wrap {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-logo {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
}

.product-icon-desktop { color: #007AFF; }
.product-icon-track { color: #34C759; }
.product-icon-conduit { color: #5856D6; }
.product-icon-buyback { color: #FF9500; }

.product-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.product-features li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}

.product-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.product-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto auto auto;
  column-gap: var(--space-xl);
  background: var(--glass-bg-heavy);
  border: 1px solid rgba(0, 122, 255, 0.15);
}

.product-featured .product-icon-wrap {
  grid-row: 1 / 3;
  width: 80px;
  height: 80px;
  align-self: center;
}

.product-featured .product-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
}

.product-featured .product-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: var(--color-accent);
  color: var(--text-inverse);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-featured h3 { font-size: 1.4rem; }

.product-featured .product-features {
  grid-column: 1 / -1;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-xl);
}

/* --- Tests Grid --- */
.tests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.test-card {
  padding: var(--space-lg);
  text-align: center;
  border-radius: var(--radius-lg);
}

.test-icon {
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.test-card[data-category="input"] .test-icon { color: #007AFF; }
.test-card[data-category="display"] .test-icon { color: #5AC8FA; }
.test-card[data-category="camera"] .test-icon { color: #FF9500; }
.test-card[data-category="audio"] .test-icon { color: #34C759; }
.test-card[data-category="hardware"] .test-icon { color: #8E8E93; }
.test-card[data-category="sensor"] .test-icon { color: #5856D6; }
.test-card[data-category="connectivity"] .test-icon { color: #AF52DE; }

.test-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Grading */
.grading-card {
  padding: var(--space-2xl);
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.grading-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.grading-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.grades-row {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.grade {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: white;
  transition: transform 0.2s;
}

.grade:hover { transform: scale(1.1); }

.grade-a { background: linear-gradient(135deg, #34C759, #30B350); }
.grade-b { background: linear-gradient(135deg, #5AC8FA, #4CB5E0); }
.grade-c { background: linear-gradient(135deg, #FF9500, #E68600); }
.grade-d { background: linear-gradient(135deg, #FF6B35, #E05A2B); }
.grade-f { background: linear-gradient(135deg, #FF3B30, #E0312B); }

.grade-labels {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.grade-labels span {
  width: 56px;
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-tertiary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Platforms Grid --- */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.platform-card {
  padding: var(--space-xl);
  text-align: center;
}

.platform-icon {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.platform-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.platform-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.platform-apps {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* --- Pricing --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.pricing-card {
  padding: var(--space-xl);
  position: relative;
}

.pricing-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: var(--space-lg);
}

.price-currency {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.price-value {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-features li svg {
  flex-shrink: 0;
  color: var(--color-success);
}

.pricing-featured {
  background: var(--glass-bg-heavy);
  border: 1px solid rgba(0, 122, 255, 0.2);
  box-shadow: var(--glass-shadow-lg), 0 0 0 1px rgba(0, 122, 255, 0.08);
  transform: scale(1.03);
}

.pricing-featured:hover {
  transform: scale(1.04);
}

.pricing-badge {
  position: absolute;
  top: calc(var(--space-md) * -1 - 2px);
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #007AFF, #5856D6);
  color: var(--text-inverse);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* --- CTA Section --- */
.section-cta {
  padding: var(--space-3xl) 0 var(--space-4xl);
}

.cta-content {
  text-align: center;
  padding: var(--space-3xl);
  max-width: 700px;
  margin: 0 auto;
  background: var(--glass-bg-heavy);
}

.cta-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-lg);
  filter: drop-shadow(0 8px 24px rgba(0, 122, 255, 0.15));
}

.cta-content h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.cta-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-top: 1px solid var(--glass-border-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer-logo-row span {
  font-weight: 700;
  font-size: 1.1rem;
}

.footer-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-left: auto;
  margin-right: auto;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

.footer-col a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  padding-top: var(--space-xl);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.footer-bottom a {
  color: var(--color-accent);
  text-decoration: none;
}

/* --- Spectra OS Section --- */
.os-showcase {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.os-card-main {
  padding: var(--space-2xl);
  background: var(--glass-bg-heavy);
  border: 1px solid rgba(0, 122, 255, 0.12);
}

.os-card-inner {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
}

.os-icon-wrap {
  flex-shrink: 0;
  color: var(--color-accent);
}

.os-card-text h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.os-card-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.os-features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.os-feature {
  padding: var(--space-xl);
}

.os-feature h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.os-feature p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Prism Hero Card --- */
.prism-hero-card {
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  background: var(--glass-bg-heavy);
  border: 1px solid rgba(0, 122, 255, 0.12);
}

.prism-hero-inner {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.prism-hero-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  flex-shrink: 0;
  filter: drop-shadow(0 8px 24px rgba(0, 122, 255, 0.15));
}

.prism-hero-inner h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.prism-hero-inner p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-top: var(--space-sm);
}

/* --- Desktop Diagnostics Grid --- */
.desktop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.desktop-card {
  padding: var(--space-xl);
}

.desktop-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.desktop-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --- Coming Soon Section --- */
.coming-soon-card {
  padding: var(--space-2xl) var(--space-3xl);
  background: var(--glass-bg-heavy);
  border: 1px solid rgba(175, 82, 222, 0.15);
  position: relative;
  overflow: hidden;
}

.coming-soon-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #007AFF, #5856D6, #AF52DE, #FF2D55);
}

.coming-soon-inner {
  position: relative;
}

.coming-soon-badge {
  display: inline-block;
  background: linear-gradient(135deg, #5856D6, #AF52DE);
  color: var(--text-inverse);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xl);
}

.coming-soon-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.coming-soon-icon {
  color: var(--color-info);
  margin-bottom: var(--space-sm);
}

.coming-soon-content h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.coming-soon-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 700px;
}

.coming-soon-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.csf-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.csf-item svg {
  flex-shrink: 0;
  color: var(--color-info);
}

/* --- Compliance Grid --- */
.compliance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.compliance-card {
  padding: var(--space-xl);
}

.compliance-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.compliance-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.compliance-featured {
  grid-column: 1 / -1;
  background: var(--glass-bg-heavy);
  border: 1px solid rgba(88, 86, 214, 0.12);
}

.compliance-card-inner {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
}

.compliance-featured h3 {
  font-size: 1.3rem;
}

.compliance-featured p {
  font-size: 1rem;
  line-height: 1.7;
}

/* --- Carbon Tracking Card --- */
.carbon-track-card {
  margin-top: var(--space-xl);
  padding: var(--space-xl);
  background: var(--glass-bg-heavy);
  border: 1px solid rgba(52, 199, 89, 0.15);
}

.carbon-inner {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
}

.carbon-inner h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.carbon-inner p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.icon-leaf {
  background: rgba(52, 199, 89, 0.1);
  color: #34C759;
}

/* --- Check Cards Row (Theft/Carrier/Unlock) --- */
.check-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.check-card {
  padding: var(--space-xl);
}

.check-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.check-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Quote Form --- */
.quote-form {
  padding: var(--space-2xl);
  background: var(--glass-bg-heavy);
}

.quote-form:hover {
  transform: none;
}

.quote-form-header {
  margin-bottom: var(--space-xl);
}

.quote-form-header h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

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

.quote-table-wrap {
  overflow-x: auto;
  margin-bottom: var(--space-xl);
  border-radius: var(--radius-md);
}

.quote-table {
  width: 100%;
  border-collapse: collapse;
}

.quote-table thead th {
  text-align: left;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.quote-table thead th.qt-number {
  text-align: center;
  width: 180px;
}

.quote-table tbody tr {
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition: background 0.15s;
}

.quote-table tbody tr:hover {
  background: rgba(0, 122, 255, 0.03);
}

.quote-table tbody td {
  padding: var(--space-sm) var(--space-md);
}

.quote-table tbody td.qt-number {
  text-align: center;
}

.qt-device-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

.qt-device-row svg {
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.qt-na {
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.quote-input {
  width: 100%;
  max-width: 120px;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all 0.2s;
  outline: none;
}

.quote-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.12);
  background: rgba(255, 255, 255, 0.9);
}

.quote-input::placeholder {
  color: var(--text-tertiary);
}

.quote-input-text {
  max-width: 100%;
  text-align: left;
}

.quote-textarea {
  resize: vertical;
  min-height: 48px;
}

.quote-contact-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.quote-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.quote-extra-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.quote-submit-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.quote-disclaimer {
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .os-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .product-featured {
    grid-column: 1 / -1;
  }
  .platforms-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .check-cards-row {
    grid-template-columns: 1fr;
  }
  .compliance-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .compliance-featured {
    grid-column: 1 / -1;
  }
  .quote-contact-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(var(--glass-blur-lg));
    -webkit-backdrop-filter: blur(var(--glass-blur-lg));
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--glass-border-subtle);
    box-shadow: var(--glass-shadow);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    width: fit-content;
  }

  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 100px;
    min-height: auto;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-subtitle {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-logo-container {
    width: 260px;
    height: 260px;
  }

  .hero-logo {
    width: 150px;
    height: 150px;
  }

  .hero-glow { width: 200px; height: 200px; }
  .hero-ring-1 { width: 200px; height: 200px; }
  .hero-ring-2 { width: 230px; height: 230px; }
  .hero-ring-3 { width: 260px; height: 260px; }

  .features-grid,
  .products-grid,
  .platforms-grid,
  .pricing-grid,
  .desktop-grid,
  .os-features-grid,
  .compliance-grid {
    grid-template-columns: 1fr;
  }

  .compliance-featured {
    grid-column: 1;
  }

  .os-card-inner,
  .compliance-card-inner,
  .carbon-inner {
    flex-direction: column;
  }

  .quote-contact-row {
    grid-template-columns: 1fr;
  }

  .quote-extra-row {
    grid-template-columns: 1fr;
  }

  .quote-form {
    padding: var(--space-lg);
  }

  .quote-table thead th.qt-number {
    width: 100px;
  }

  .quote-input {
    max-width: 80px;
    padding: 8px 6px;
    font-size: 0.85rem;
  }

  .prism-hero-inner {
    flex-direction: column;
    text-align: center;
  }

  .coming-soon-card {
    padding: var(--space-xl);
  }

  .product-featured {
    display: flex;
    flex-direction: column;
  }

  .product-featured .product-features {
    flex-direction: column;
  }

  .tests-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
  }

  .test-card {
    padding: var(--space-md);
  }

  .grades-row {
    gap: var(--space-sm);
  }

  .grade {
    width: 48px;
    height: 48px;
    font-size: 1.2rem;
  }

  .grade-labels span {
    width: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .cta-content {
    padding: var(--space-xl);
  }

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-md);
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

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

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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