:root {
  --color-midnight: #0d1117;
  --color-midnight-soft: #161b22;
  --color-ink: #1e2633;
  --color-ink-light: #2d3748;
  --color-electric: #00d4ff;
  --color-electric-dark: #00a8cc;
  --color-volt: #f5e642;
  --color-volt-dark: #d4c500;
  --color-coral: #ff4d6d;
  --color-coral-dark: #cc2a49;
  --color-sage: #00c896;
  --color-sage-dark: #009e76;
  --color-violet: #7c3aed;
  --color-violet-light: #a78bfa;
  --color-orange: #ff6b35;
  --color-orange-dark: #d94f1a;
  --color-text-primary: #f0f4f8;
  --color-text-secondary: #a8b8cc;
  --color-text-dark: #1e2633;
  --color-text-dark-secondary: #4a5568;
  --color-white-soft: #f8fafc;
  --color-white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15), 0 2px 4px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.2), 0 4px 8px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.25), 0 8px 16px rgba(0,0,0,0.15);
  --shadow-glow-electric: 0 0 20px rgba(0,212,255,0.3);
  --shadow-glow-volt: 0 0 20px rgba(245,230,66,0.3);
  --shadow-glow-coral: 0 0 20px rgba(255,77,109,0.3);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;
  --font-heading: 'Literata', Georgia, serif;
  --font-body: 'Figtree', system-ui, sans-serif;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}


*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background-color: var(--color-white-soft);
  color: var(--color-text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition-base); }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-body); }
input, textarea, select { font-family: var(--font-body); }


.mod-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition-base);
}
.mod-nav::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  right: 50%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-electric), var(--color-violet), var(--color-coral));
  transform: scaleX(0);
  transform-origin: center;
  transition: left var(--transition-slow), right var(--transition-slow), transform var(--transition-slow);
}
.mod-nav.scrolled::after {
  left: 0;
  right: 0;
  transform: scaleX(1);
}
.mod-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.mod-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.mod-nav-logo-img { width: 36px; height: 36px; }
.mod-nav-logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-midnight);
  letter-spacing: -0.02em;
}
.mod-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mod-nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}
.mod-nav-link:hover, .mod-nav-link.active {
  background: rgba(0,212,255,0.1);
  color: var(--color-electric-dark);
}
.mod-nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.mod-nav-hamburger:hover { background: rgba(0,0,0,0.06); }
.mod-nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.mod-nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mod-nav-hamburger.open span:nth-child(2) { opacity: 0; }
.mod-nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mod-nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--color-white);
  border-top: 1px solid rgba(0,0,0,0.08);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding var(--transition-base);
}
.mod-nav-mobile.open {
  max-height: 400px;
  padding: 8px 0 12px;
}
.mod-nav-mobile-link {
  display: block;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-ink);
  border-left: 3px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}
.mod-nav-mobile-link:hover, .mod-nav-mobile-link.active {
  background: rgba(0,212,255,0.06);
  border-left-color: var(--color-electric);
  color: var(--color-electric-dark);
}


.mod-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 70px;
}
.mod-hero-bg-layer {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-midnight) 0%, var(--color-ink) 40%, #1a2640 70%, #0f1e35 100%);
  z-index: 1;
}
.mod-hero-img-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
}
.mod-hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  transform: scale(1.05);
}
.mod-hero-mid-layer {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}
.mod-hero-mid-circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}
.mod-hero-mid-circle--1 {
  width: 500px; height: 500px;
  background: rgba(0,212,255,0.12);
  top: -100px; right: -100px;
  animation: floatCircle 8s ease-in-out infinite;
}
.mod-hero-mid-circle--2 {
  width: 350px; height: 350px;
  background: rgba(124,58,237,0.1);
  bottom: 50px; left: -80px;
  animation: floatCircle 10s ease-in-out infinite reverse;
}
.mod-hero-mid-circle--3 {
  width: 250px; height: 250px;
  background: rgba(245,230,66,0.08);
  top: 40%; right: 20%;
  animation: floatCircle 12s ease-in-out infinite;
}
@keyframes floatCircle {
  0%, 100% { transform: translate(0,0); }
  50% { transform: translate(20px, -20px); }
}
.mod-hero-content {
  position: relative;
  z-index: 4;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 80px 24px 100px;
  animation: heroEntrance 0.8s ease forwards;
}
@keyframes heroEntrance {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.mod-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,212,255,0.15);
  border: 1px solid rgba(0,212,255,0.3);
  color: var(--color-electric);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.mod-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  max-width: 800px;
}
.mod-hero-title-accent {
  background: linear-gradient(135deg, var(--color-electric), var(--color-violet-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mod-hero-desc {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--color-text-secondary);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.mod-hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.mod-hero-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-electric);
  color: var(--color-midnight);
  padding: 16px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-glow-electric), var(--shadow-md);
}
.mod-hero-cta-primary:hover {
  background: var(--color-electric-dark);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0,212,255,0.5), var(--shadow-lg);
  color: var(--color-midnight);
}
.mod-hero-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-text-primary);
  padding: 16px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid rgba(255,255,255,0.25);
  transition: background var(--transition-base), transform var(--transition-fast), border-color var(--transition-base);
}
.mod-hero-cta-secondary:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
  color: var(--color-text-primary);
}
.mod-hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  color: rgba(255,255,255,0.4);
  font-size: 1.2rem;
  animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}


.mod-about {
  background: var(--color-volt);
  padding: 100px 24px;
}
.mod-about-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.mod-about-label {
  display: inline-block;
  background: rgba(0,0,0,0.1);
  color: var(--color-ink);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.mod-about-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.mod-about-lead {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.6;
  margin-bottom: 16px;
}
.mod-about-body {
  font-size: 1rem;
  color: rgba(30,38,51,0.8);
  line-height: 1.75;
  margin-bottom: 28px;
}
.mod-about-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-ink);
  font-weight: 600;
  font-size: 0.95rem;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--color-ink);
  transition: gap var(--transition-base), border-color var(--transition-base);
}
.mod-about-link:hover { gap: 14px; color: var(--color-ink); }
.mod-about-img-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.mod-about-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.mod-about-img-frame:hover .mod-about-img { transform: scale(1.04); }
.mod-about-img-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: var(--color-midnight);
  color: var(--color-electric);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
}


.mod-topics {
  background: var(--color-midnight);
  padding: 100px 24px;
}
.mod-topics-inner { max-width: 1280px; margin: 0 auto; }
.mod-topics-header { text-align: center; margin-bottom: 60px; }
.mod-topics-label {
  display: inline-block;
  color: var(--color-electric);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.mod-topics-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.mod-topics-sub {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto;
}
.mod-topics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}


.mod-topics-card {
  background: var(--color-midnight-soft);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  overflow: hidden;
}
.mod-topics-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: linear-gradient(90deg, var(--color-electric), var(--color-violet), var(--color-coral), var(--color-electric));
  background-size: 300% 100%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  animation: borderGradient 3s linear infinite paused;
}
.mod-topics-card:hover::before {
  opacity: 1;
  animation-play-state: running;
}
@keyframes borderGradient {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}
.mod-topics-card--animated::before { opacity: 0; }
.mod-topics-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(0,212,255,0.1);
}
.mod-topics-card-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(124,58,237,0.15));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-electric);
  margin-bottom: 20px;
  transition: background var(--transition-base), transform var(--transition-base);
}
.mod-topics-card:hover .mod-topics-card-icon {
  background: linear-gradient(135deg, rgba(0,212,255,0.25), rgba(124,58,237,0.25));
  transform: scale(1.1);
}
.mod-topics-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.mod-topics-card-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}
.mod-topics-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-electric);
  font-size: 0.9rem;
  font-weight: 600;
  transition: gap var(--transition-base), color var(--transition-base);
}
.mod-topics-card-link:hover { gap: 12px; color: var(--color-electric-dark); }


.mod-photo {
  background: var(--color-coral);
  padding: 100px 24px;
}
.mod-photo-inner { max-width: 1280px; margin: 0 auto; }
.mod-photo-header {
  margin-bottom: 48px;
}
.mod-photo-label {
  display: inline-block;
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.mod-photo-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--color-white);
  max-width: 600px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}
.mod-photo-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}
.mod-photo-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.mod-photo-item:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-xl);
}
.mod-photo-item--large { grid-column: span 7; grid-row: span 2; }
.mod-photo-item--tall { grid-column: span 5; grid-row: span 2; }
.mod-photo-item--small { grid-column: span 5; }
.mod-photo-item--wide { grid-column: span 7; }
.mod-photo-img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.mod-photo-item:hover .mod-photo-img { transform: scale(1.06); }
.mod-photo-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: var(--color-white);
  padding: 24px 16px 14px;
  font-size: 0.85rem;
  font-weight: 600;
}


.mod-features {
  background: var(--color-sage);
  padding: 100px 24px;
}
.mod-features-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.mod-features-label {
  display: inline-block;
  background: rgba(0,0,0,0.12);
  color: var(--color-ink);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.mod-features-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.mod-features-body {
  font-size: 1rem;
  color: rgba(30,38,51,0.8);
  line-height: 1.75;
  margin-bottom: 16px;
}
.mod-features-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-ink);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 12px;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--color-ink);
  transition: gap var(--transition-base);
}
.mod-features-cta:hover { gap: 14px; color: var(--color-ink); }
.mod-features-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  background: rgba(255,255,255,0.3);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.mod-features-item:hover {
  background: rgba(255,255,255,0.5);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}
.mod-features-item-icon {
  width: 44px; height: 44px;
  background: var(--color-ink);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-sage);
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}
.mod-features-item:hover .mod-features-item-icon { transform: rotate(-5deg) scale(1.05); }
.mod-features-item-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
}
.mod-features-item-text {
  font-size: 0.9rem;
  color: rgba(30,38,51,0.75);
  line-height: 1.65;
}


.mod-calculator {
  background: var(--color-violet);
  padding: 100px 24px;
}
.mod-calculator-inner { max-width: 1280px; margin: 0 auto; }
.mod-calculator-header { text-align: center; margin-bottom: 56px; }
.mod-calculator-label {
  display: inline-block;
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.mod-calculator-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.mod-calculator-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}
.mod-calculator-widget {
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
}
.mod-calculator-field { margin-bottom: 24px; }
.mod-calculator-label-field {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin-bottom: 10px;
}
.mod-calculator-radio-group { display: flex; flex-direction: column; gap: 8px; }
.mod-calculator-radio {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.mod-calculator-radio:hover { background: rgba(255,255,255,0.1); }
.mod-calculator-radio input[type="radio"] { accent-color: var(--color-volt); width: 16px; height: 16px; }
.mod-calculator-select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: 0.95rem;
  transition: border-color var(--transition-base), background var(--transition-base);
  appearance: none;
}
.mod-calculator-select:focus {
  outline: none;
  border-color: var(--color-volt);
  background: rgba(255,255,255,0.18);
}
.mod-calculator-select option { background: var(--color-violet); color: var(--color-white); }
.mod-calculator-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-volt);
  color: var(--color-ink);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  margin-top: 8px;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-glow-volt), var(--shadow-md);
}
.mod-calculator-btn:hover {
  background: var(--color-volt-dark);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(245,230,66,0.5), var(--shadow-lg);
}
.mod-calculator-result-col {
  display: flex;
  align-items: center;
  justify-content: center;
}
.mod-calculator-result-placeholder {
  text-align: center;
  padding: 40px;
}
.mod-calculator-result-icon {
  font-size: 3.5rem;
  color: rgba(255,255,255,0.2);
  margin-bottom: 20px;
  display: block;
}
.mod-calculator-result-text {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}
.mod-calculator-result-output { width: 100%; }
.mod-calculator-score-bar {
  height: 12px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-bottom: 20px;
}
.mod-calculator-score-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  transition: width 0.8s ease;
  background: linear-gradient(90deg, var(--color-coral), var(--color-volt), var(--color-sage));
}
.mod-calculator-score-label {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}
.mod-calculator-score-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 24px;
}
.mod-calculator-score-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-volt);
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap var(--transition-base);
}
.mod-calculator-score-link:hover { gap: 14px; }


.mod-recent {
  background: var(--color-white-soft);
  padding: 100px 24px;
}
.mod-recent-inner { max-width: 1280px; margin: 0 auto; }
.mod-recent-header { margin-bottom: 48px; }
.mod-recent-label {
  display: inline-block;
  color: var(--color-electric-dark);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.mod-recent-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}
.mod-recent-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}
.mod-recent-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm), 0 4px 16px rgba(0,0,0,0.06);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.mod-recent-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl), 0 0 30px rgba(0,0,0,0.08);
}
.mod-recent-card-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.mod-recent-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.mod-recent-card:hover .mod-recent-card-img { transform: scale(1.06); }
.mod-recent-card-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--color-electric);
  color: var(--color-midnight);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.mod-recent-card-body { padding: 28px; }
.mod-recent-card-date {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-dark-secondary);
  margin-bottom: 10px;
  font-weight: 500;
}
.mod-recent-card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.4;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.mod-recent-card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}
.mod-recent-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-electric-dark);
  font-size: 0.9rem;
  font-weight: 600;
  transition: gap var(--transition-base), color var(--transition-base);
}
.mod-recent-card-link:hover { gap: 12px; }
.mod-recent-more { text-align: center; }
.mod-recent-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-md);
}
.mod-recent-more-btn:hover {
  background: var(--color-electric-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}


.mod-standards {
  background: var(--color-midnight);
  padding: 100px 24px;
}
.mod-standards-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}
.mod-standards-label {
  display: inline-block;
  color: var(--color-electric);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.mod-standards-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  line-height: 1.25;
}
.mod-standards-body {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 28px;
}
.mod-standards-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-electric);
  font-weight: 600;
  font-size: 0.95rem;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--color-electric);
  transition: gap var(--transition-base);
}
.mod-standards-cta:hover { gap: 14px; color: var(--color-electric); }
.mod-standards-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.mod-standards-card {
  background: var(--color-midnight-soft);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  border-left: 4px solid transparent;
}
.mod-standards-card:hover {
  transform: translateX(8px);
  background: rgba(255,255,255,0.04);
  border-left-color: var(--color-electric);
  box-shadow: var(--shadow-md);
}
.mod-standards-card-icon {
  font-size: 1.5rem;
  color: var(--color-electric);
  flex-shrink: 0;
  margin-top: 2px;
  transition: transform var(--transition-base);
}
.mod-standards-card:hover .mod-standards-card-icon { transform: rotate(-10deg) scale(1.1); }
.mod-standards-card-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}
.mod-standards-card-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}


.mod-newsletter {
  background: var(--color-orange);
  padding: 80px 24px;
}
.mod-newsletter-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.mod-newsletter-icon {
  font-size: 2.5rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 20px;
}
.mod-newsletter-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.mod-newsletter-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 32px;
}
.mod-newsletter-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-white);
  color: var(--color-orange-dark);
  padding: 16px 36px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-lg);
}
.mod-newsletter-cta:hover {
  background: var(--color-white-soft);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
  color: var(--color-orange-dark);
}


.mod-page-hero {
  padding: 140px 24px 80px;
  text-align: center;
}
.mod-page-hero--violet { background: linear-gradient(135deg, var(--color-violet), #4c1d95); }
.mod-page-hero--orange { background: linear-gradient(135deg, var(--color-orange), #9a2c00); }
.mod-page-hero--green { background: linear-gradient(135deg, var(--color-sage), #005a42); }
.mod-page-hero--dark { background: linear-gradient(135deg, var(--color-midnight), var(--color-ink)); }
.mod-page-hero-inner { max-width: 800px; margin: 0 auto; }
.mod-page-hero-label {
  display: inline-block;
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.mod-page-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}
.mod-page-hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}


.mod-vision-intro {
  background: var(--color-white-soft);
  padding: 80px 24px;
}
.mod-vision-intro-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}
.mod-vision-intro-text h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.mod-vision-intro-text p {
  font-size: 1rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}
.mod-vision-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  transition: transform 0.6s ease;
}
.mod-vision-img:hover { transform: scale(1.02); }
.mod-vision-timeline {
  background: var(--color-midnight);
  padding: 80px 24px;
}
.mod-vision-timeline-inner { max-width: 900px; margin: 0 auto; }
.mod-vision-timeline-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 48px;
  text-align: center;
}
.mod-vision-timeline-list { position: relative; }
.mod-vision-timeline-list::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-electric), var(--color-violet), var(--color-coral));
}
.mod-vision-tl-item {
  display: flex;
  gap: 32px;
  margin-bottom: 48px;
  position: relative;
}
.mod-vision-tl-marker {
  width: 56px;
  height: 56px;
  background: var(--color-midnight-soft);
  border: 2px solid var(--color-electric);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-electric);
  font-size: 1.2rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: background var(--transition-base), transform var(--transition-base);
}
.mod-vision-tl-item:hover .mod-vision-tl-marker {
  background: var(--color-electric);
  color: var(--color-midnight);
  transform: scale(1.1);
}
.mod-vision-tl-content { padding-top: 8px; }
.mod-vision-tl-year {
  display: inline-block;
  background: rgba(0,212,255,0.15);
  color: var(--color-electric);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.mod-vision-tl-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 12px;
}
.mod-vision-tl-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}
.mod-vision-cta {
  background: var(--color-volt);
  padding: 80px 24px;
}
.mod-vision-cta-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.mod-vision-cta-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.mod-vision-cta-sub {
  font-size: 1rem;
  color: rgba(30,38,51,0.75);
  line-height: 1.7;
  margin-bottom: 32px;
}
.mod-vision-cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.mod-vision-cta-btn-primary {
  background: var(--color-ink);
  color: var(--color-white);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-md);
}
.mod-vision-cta-btn-primary:hover {
  background: var(--color-electric-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}
.mod-vision-cta-btn-secondary {
  background: transparent;
  color: var(--color-ink);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid var(--color-ink);
  transition: background var(--transition-base), transform var(--transition-fast);
}
.mod-vision-cta-btn-secondary:hover {
  background: rgba(0,0,0,0.08);
  transform: translateY(-2px);
  color: var(--color-ink);
}


.mod-topics-detail {
  background: var(--color-white-soft);
  padding: 80px 24px;
}
.mod-topics-detail-inner { max-width: 1280px; margin: 0 auto; }
.mod-topics-detail-block {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.mod-topics-detail-block:last-child { border-bottom: none; margin-bottom: 0; }
.mod-topics-detail-block--reverse { direction: rtl; }
.mod-topics-detail-block--reverse > * { direction: ltr; }
.mod-topics-detail-img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  transition: transform 0.6s ease;
}
.mod-topics-detail-img:hover { transform: scale(1.02); }
.mod-topics-detail-icon-wrap {
  width: 56px; height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.mod-topics-detail-icon-wrap--blue { background: rgba(0,212,255,0.12); color: var(--color-electric-dark); }
.mod-topics-detail-icon-wrap--red { background: rgba(255,77,109,0.12); color: var(--color-coral); }
.mod-topics-detail-icon-wrap--green { background: rgba(0,200,150,0.12); color: var(--color-sage-dark); }
.mod-topics-detail-icon-wrap--yellow { background: rgba(245,230,66,0.15); color: #a89000; }
.mod-topics-detail-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.mod-topics-detail-lead {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.6;
  margin-bottom: 16px;
}
.mod-topics-detail-text-col p {
  font-size: 0.95rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}
.mod-topics-detail-list {
  list-style: none;
  margin-top: 16px;
}
.mod-topics-detail-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}
.mod-topics-detail-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-electric);
}
.mod-topics-cta {
  background: var(--color-coral);
  padding: 80px 24px;
}
.mod-topics-cta-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}
.mod-topics-cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.mod-topics-cta-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 32px;
}
.mod-topics-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-white);
  color: var(--color-coral-dark);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-lg);
}
.mod-topics-cta-btn:hover {
  background: var(--color-white-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  color: var(--color-coral-dark);
}


.mod-algo-intro {
  background: var(--color-volt);
  padding: 60px 24px;
}
.mod-algo-intro-inner {
  max-width: 900px;
  margin: 0 auto;
}
.mod-algo-intro-lead {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.7;
  margin-bottom: 16px;
}
.mod-algo-intro-inner p {
  font-size: 1rem;
  color: rgba(30,38,51,0.8);
  line-height: 1.75;
}
.mod-algo-updates {
  background: var(--color-white-soft);
  padding: 80px 24px;
}
.mod-algo-updates-inner { max-width: 900px; margin: 0 auto; }
.mod-algo-updates-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}
.mod-algo-update-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm), 0 4px 12px rgba(0,0,0,0.06);
  border-left: 4px solid transparent;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-left-color var(--transition-base);
}
.mod-algo-update-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-lg);
  border-left-color: var(--color-electric);
}
.mod-algo-update-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.mod-algo-update-source {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.mod-algo-update-source--chrome { background: rgba(0,212,255,0.12); color: var(--color-electric-dark); }
.mod-algo-update-source--firefox { background: rgba(255,107,53,0.12); color: var(--color-orange-dark); }
.mod-algo-update-source--google { background: rgba(0,200,150,0.12); color: var(--color-sage-dark); }
.mod-algo-update-source--ietf { background: rgba(124,58,237,0.12); color: var(--color-violet); }
.mod-algo-update-source--openssl { background: rgba(255,77,109,0.12); color: var(--color-coral-dark); }
.mod-algo-update-date {
  font-size: 0.8rem;
  color: var(--color-text-dark-secondary);
  font-weight: 500;
}
.mod-algo-update-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.mod-algo-update-text {
  font-size: 0.95rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.mod-algo-update-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.mod-algo-tag {
  background: var(--color-white-soft);
  color: var(--color-text-dark-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(0,0,0,0.1);
}
.mod-algo-how {
  background: var(--color-midnight);
  padding: 80px 24px;
}
.mod-algo-how-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}
.mod-algo-how-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.mod-algo-how-text p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}
.mod-algo-how-sources-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 20px;
}
.mod-algo-sources-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.mod-algo-source-item {
  background: var(--color-midnight-soft);
  color: var(--color-text-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.mod-algo-source-item:hover {
  background: rgba(0,212,255,0.1);
  color: var(--color-electric);
}


.mod-contact-split {
  background: var(--color-white-soft);
  padding: 80px 24px;
}
.mod-contact-split-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.mod-contact-map-col {}
.mod-contact-map-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  margin-bottom: 24px;
}
.mod-contact-map-iframe {
  width: 100%;
  height: 360px;
  border: none;
  display: block;
}
.mod-contact-address-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-md), 0 4px 16px rgba(0,0,0,0.06);
}
.mod-contact-address-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}
.mod-contact-address-detail {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.mod-contact-address-detail i {
  font-size: 1.1rem;
  color: var(--color-electric-dark);
  margin-top: 2px;
  width: 20px;
  flex-shrink: 0;
}
.mod-contact-address-detail strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.mod-contact-address-detail p {
  font-size: 0.9rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.6;
}
.mod-contact-address-detail a {
  color: var(--color-electric-dark);
  font-weight: 500;
  transition: color var(--transition-fast);
}
.mod-contact-address-detail a:hover { color: var(--color-electric); }
.mod-contact-form-col {}
.mod-contact-form-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-xl), 0 4px 16px rgba(0,0,0,0.08);
}
.mod-contact-form-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.mod-contact-form-sub {
  font-size: 0.9rem;
  color: var(--color-text-dark-secondary);
  margin-bottom: 32px;
}
.mod-contact-field { margin-bottom: 20px; }
.mod-contact-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.mod-contact-input, .mod-contact-textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid rgba(0,0,0,0.15);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--color-ink);
  background: var(--color-white-soft);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}
.mod-contact-input:focus, .mod-contact-textarea:focus {
  outline: none;
  border-color: var(--color-electric-dark);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.12);
}
.mod-contact-textarea { resize: vertical; min-height: 120px; }
.mod-contact-field--checkbox { display: flex; align-items: flex-start; gap: 12px; }
.mod-contact-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.5;
}
.mod-contact-checkbox {
  width: 18px;
  height: 18px;
  accent-color: var(--color-electric-dark);
  flex-shrink: 0;
  margin-top: 1px;
}
.mod-contact-privacy-link {
  color: var(--color-electric-dark);
  text-decoration: underline;
  transition: color var(--transition-fast);
}
.mod-contact-privacy-link:hover { color: var(--color-electric); }
.mod-contact-error {
  background: rgba(255,77,109,0.1);
  border: 1px solid rgba(255,77,109,0.3);
  color: var(--color-coral-dark);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.mod-contact-submit {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 16px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-md);
  min-height: 52px;
}
.mod-contact-submit:hover {
  background: var(--color-electric-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}


.mod-thanks-hero {
  background: linear-gradient(135deg, var(--color-electric-dark), var(--color-violet), var(--color-coral));
  padding: 120px 24px 100px;
  text-align: center;
}
.mod-thanks-hero-inner { max-width: 700px; margin: 0 auto; }
.mod-thanks-icon-wrap {
  margin-bottom: 24px;
}
.mod-thanks-icon {
  font-size: 4rem;
  color: rgba(255,255,255,0.9);
}
.mod-thanks-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.mod-thanks-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
}
.mod-thanks-next {
  background: var(--color-white-soft);
  padding: 80px 24px;
}
.mod-thanks-next-inner { max-width: 900px; margin: 0 auto; }
.mod-thanks-next-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: 36px;
  text-align: center;
}
.mod-thanks-next-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.mod-thanks-next-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-sm), 0 4px 12px rgba(0,0,0,0.06);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.mod-thanks-next-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}
.mod-thanks-next-card i {
  font-size: 2rem;
  color: var(--color-electric-dark);
  margin-bottom: 16px;
  display: block;
}
.mod-thanks-next-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
}
.mod-thanks-next-card p {
  font-size: 0.9rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}
.mod-thanks-next-card a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-electric-dark);
  font-size: 0.9rem;
  font-weight: 600;
  transition: gap var(--transition-base);
}
.mod-thanks-next-card a:hover { gap: 12px; }
.mod-thanks-home-wrap { text-align: center; }
.mod-thanks-home-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  box-shadow: var(--shadow-md);
}
.mod-thanks-home-btn:hover {
  background: var(--color-electric-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}


.mod-legal-hero {
  background: linear-gradient(135deg, var(--color-midnight), var(--color-ink));
  padding: 120px 24px 60px;
  text-align: center;
}
.mod-legal-hero--alt { background: linear-gradient(135deg, var(--color-violet), #2d1b69); }
.mod-legal-hero--cookies { background: linear-gradient(135deg, var(--color-sage-dark), #003d2a); }
.mod-legal-hero-inner { max-width: 800px; margin: 0 auto; }
.mod-legal-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.mod-legal-hero-meta {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}
.mod-legal-content {
  background: var(--color-white-soft);
  padding: 60px 24px 80px;
}
.mod-legal-content-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.mod-legal-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm), 0 4px 16px rgba(0,0,0,0.06);
  transition: box-shadow var(--transition-base);
}
.mod-legal-card:hover { box-shadow: var(--shadow-md), 0 8px 24px rgba(0,0,0,0.1); }
.mod-legal-card--terms { border-top: 3px solid var(--color-violet); }
.mod-legal-card--cookies { border-top: 3px solid var(--color-sage); }
.mod-legal-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.mod-legal-card p {
  font-size: 0.95rem;
  color: var(--color-text-dark-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
}
.mod-legal-card p:last-child { margin-bottom: 0; }
.mod-legal-card a {
  color: var(--color-electric-dark);
  text-decoration: underline;
  transition: color var(--transition-fast);
}
.mod-legal-card a:hover { color: var(--color-electric); }
.mod-legal-card-icon-row {
  font-size: 2rem;
  color: var(--color-sage);
  margin-bottom: 16px;
}


.mod-footer {
  background: var(--color-midnight);
  padding: 60px 24px 32px;
  text-align: center;
}
.mod-footer-inner { max-width: 900px; margin: 0 auto; }
.mod-footer-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
}
.mod-footer-logo { width: 36px; height: 36px; }
.mod-footer-brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
}
.mod-footer-tagline {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}
.mod-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 20px;
  margin-bottom: 28px;
}
.mod-footer-nav-link {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  padding: 6px 0;
  transition: color var(--transition-base);
  position: relative;
}
.mod-footer-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 100%;
  height: 1px;
  background: var(--color-electric);
  transition: right var(--transition-base);
}
.mod-footer-nav-link:hover { color: var(--color-electric); }
.mod-footer-nav-link:hover::after { right: 0; }
.mod-footer-contact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}
.mod-footer-contact span { display: flex; align-items: center; gap: 6px; }
.mod-footer-contact i { color: var(--color-electric); font-size: 0.8rem; }
.mod-footer-contact a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}
.mod-footer-contact a:hover { color: var(--color-electric); }
.mod-footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 20px;
  margin-bottom: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mod-footer-legal-link {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}
.mod-footer-legal-link:hover { color: var(--color-electric); }
.mod-footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}


.mod-cookie-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-midnight-soft);
  border-top: 2px solid var(--color-electric);
  z-index: 9999;
  padding: 16px 24px;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.3);
  transform: translateY(100%);
  transition: transform 0.4s ease;
}
.mod-cookie-bar.visible { transform: translateY(0); }
.mod-cookie-bar-main {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.mod-cookie-bar-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  flex: 1;
  min-width: 200px;
}
.mod-cookie-bar-text a { color: var(--color-electric); text-decoration: underline; }
.mod-cookie-bar-btns {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.mod-cookie-btn {
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  min-height: 44px;
  transition: background var(--transition-base), transform var(--transition-fast);
}
.mod-cookie-btn:hover { transform: translateY(-1px); }
.mod-cookie-btn--accept { background: var(--color-electric); color: var(--color-midnight); }
.mod-cookie-btn--accept:hover { background: var(--color-electric-dark); }
.mod-cookie-btn--reject { background: rgba(255,255,255,0.1); color: var(--color-text-secondary); border: 1px solid rgba(255,255,255,0.15); }
.mod-cookie-btn--reject:hover { background: rgba(255,255,255,0.15); }
.mod-cookie-btn--customize { background: transparent; color: var(--color-electric); border: 1px solid var(--color-electric); }
.mod-cookie-btn--customize:hover { background: rgba(0,212,255,0.1); }
.mod-cookie-bar-expand {
  max-width: 1280px;
  margin: 16px auto 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: none;
}
.mod-cookie-bar-expand.open { display: block; }
.mod-cookie-categories {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.mod-cookie-category {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 200px;
  background: rgba(255,255,255,0.05);
  padding: 14px 16px;
  border-radius: var(--radius-md);
}
.mod-cookie-category-label {
  flex: 1;
}
.mod-cookie-category-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  display: block;
}
.mod-cookie-category-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.mod-cookie-toggle {
  position: relative;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}
.mod-cookie-toggle input { opacity: 0; width: 0; height: 0; }
.mod-cookie-toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--transition-base);
}
.mod-cookie-toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px; top: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-white);
  transition: transform var(--transition-base);
}
.mod-cookie-toggle input:checked + .mod-cookie-toggle-slider { background: var(--color-electric); }
.mod-cookie-toggle input:checked + .mod-cookie-toggle-slider::before { transform: translateX(20px); }
.mod-cookie-toggle input:disabled + .mod-cookie-toggle-slider { opacity: 0.5; cursor: not-allowed; }
.mod-cookie-save-btn {
  background: var(--color-electric);
  color: var(--color-midnight);
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition-base), transform var(--transition-fast);
  min-height: 44px;
}
.mod-cookie-save-btn:hover { background: var(--color-electric-dark); transform: translateY(-1px); }


.reveal-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-item.revealed {
  opacity: 1;
  transform: translateY(0);
}


@media (max-width: 1024px) {
  .mod-about-inner,
  .mod-features-inner,
  .mod-standards-inner,
  .mod-vision-intro-inner,
  .mod-algo-how-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .mod-topics-grid { grid-template-columns: 1fr 1fr; }
  .mod-recent-grid { grid-template-columns: 1fr 1fr; }
  .mod-thanks-next-cards { grid-template-columns: 1fr 1fr; }
  .mod-contact-split-inner { grid-template-columns: 1fr; }
  .mod-calculator-widget { grid-template-columns: 1fr; }
  .mod-topics-detail-block,
  .mod-topics-detail-block--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .mod-nav-links { display: none; }
  .mod-nav-hamburger { display: flex; }
  .mod-nav-mobile { display: flex; }
  .mod-hero-cta-group { flex-direction: column; align-items: flex-start; }
  .mod-topics-grid { grid-template-columns: 1fr; }
  .mod-photo-grid {
    grid-template-columns: 1fr;
  }
  .mod-photo-item--large,
  .mod-photo-item--tall,
  .mod-photo-item--small,
  .mod-photo-item--wide {
    grid-column: span 1;
    grid-row: span 1;
  }
  .mod-photo-img { min-height: 220px; }
  .mod-recent-grid { grid-template-columns: 1fr; }
  .mod-thanks-next-cards { grid-template-columns: 1fr; }
  .mod-calculator-widget { padding: 28px 20px; }
  .mod-contact-form-card { padding: 24px 20px; }
  .mod-algo-how-inner { grid-template-columns: 1fr; }
  .mod-algo-sources-grid { grid-template-columns: 1fr; }
  .mod-vision-tl-item { gap: 20px; }
  .mod-vision-timeline-list::before { left: 22px; }
  .mod-vision-tl-marker { width: 44px; height: 44px; }
  .mod-about-img { height: 280px; }
  .mod-vision-img { height: 260px; }
  .mod-cookie-bar-main { flex-direction: column; align-items: flex-start; }
  .mod-cookie-bar-btns { width: 100%; }
  .mod-cookie-btn { flex: 1; text-align: center; justify-content: center; }
  .mod-cookie-categories { flex-direction: column; }
}

@media (max-width: 480px) {
  .mod-hero-content { padding: 60px 16px 80px; }
  .mod-about, .mod-topics, .mod-photo, .mod-features,
  .mod-calculator, .mod-recent, .mod-standards, .mod-newsletter {
    padding: 72px 16px;
  }
  .mod-page-hero { padding: 120px 16px 60px; }
  .mod-footer { padding: 48px 16px 24px; }
  .mod-legal-card { padding: 24px 20px; }
  .mod-contact-address-card { padding: 24px 20px; }
}