:root {
  --primary-100: #072C4B;
  --primary-80: #234262;
  --primary-60: #436082;
  --primary-40: #91AED4;
  --primary-20: #D1E4FF;

  --accent-100: #14B8A6;
  --accent-80: #0D9488;
  --accent-soft: rgba(20, 184, 166, 0.1);

  --surface-100: #FFFFFF;
  --surface-90: #F7F9FB;
  --surface-80: #F2F4F6;
  --surface-70: #ECEEF0;
  --surface-60: #E6E8EA;
  --surface-50: #E0E3E5;

  --text-primary: #191C1E;
  --text-secondary: #43474E;
  --text-tertiary: #73777E;
  --text-inverse: #FFFFFF;

  --border: #C3C6CE;
  --border-soft: #E0E3E5;
  --border-active: rgba(7, 44, 75, 0.35);

  --success: #4ADE80;
  --error: #F87171;
  --info: #60A5FA;
  --warning: #FBBF24;

  --font-display: 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 4px 12px rgba(7, 44, 75, 0.08);
  --shadow-md: 0 10px 28px rgba(7, 44, 75, 0.14);
  --shadow-lg: 0 18px 48px rgba(7, 44, 75, 0.18);
  --shadow-brand: 0 20px 52px rgba(7, 44, 75, 0.24);
}

/* ==========================================================================
   Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  background-image: none;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: min(100% - 48px, 1280px);
  margin-inline: auto;
}

.section {
  padding: var(--space-8) 0;
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 200;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: scale(0.98);
}

.btn-sm {
  min-height: 38px;
  padding: 8px 16px;
  font-size: 13px;
}

.btn-lg {
  min-height: 56px;
  padding: 16px 28px;
  font-size: 15px;
}

.btn-primary {
  background: var(--primary-100);
  color: var(--text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--primary-80);
  box-shadow: var(--shadow-brand);
}

.btn-secondary {
  background: var(--surface-100);
  color: var(--primary-100);
  border-color: var(--border-soft);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--surface-80);
  border-color: var(--border);
}

.btn-outline {
  background: transparent;
  color: var(--primary-100);
  border-color: var(--primary-100);
}

.btn-outline:hover {
  background: rgba(7, 44, 75, 0.08);
}

.btn-accent {
  background: var(--accent-100);
  color: var(--text-inverse);
  box-shadow: 0 14px 30px rgba(20, 184, 166, 0.22);
}

.btn-accent:hover {
  background: var(--accent-80);
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--border-soft);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
}

.header-container {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--primary-100);
  font-weight: 900;
}

.brand-icon {
  font-size: 28px;
}

.brand-name {
  font-size: 21px;
  letter-spacing: -0.04em;
}

.brand-name span {
  color: var(--primary-60);
}

.brand-gradient {
  background: linear-gradient(100deg, var(--accent-100) 0%, var(--primary-80) 82%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.main-nav a {
  color: var(--text-tertiary);
  font-size: 14px;
  font-weight: 700;
  transition: color 0.18s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--primary-100);
}

.main-nav a.active {
  border-bottom: 2px solid var(--primary-100);
}

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

.language-btn,
.theme-toggle,
.nav-toggle {
  border: 0;
  background: transparent;
  font-family: var(--font-display);
  cursor: pointer;
}

.language-btn {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 700;
}

.language-btn:hover {
  background: var(--surface-80);
}

.language-btn .material-symbols-outlined {
  font-size: 16px;
}

.theme-toggle {
  position: relative;
  width: 48px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border-radius: var(--radius-full);
  background: var(--surface-70);
  color: var(--text-tertiary);
}

.theme-toggle-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface-100);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}

.theme-toggle .material-symbols-outlined {
  position: absolute;
  right: 6px;
  font-size: 13px;
}

body.dark-mode .theme-toggle-dot {
  transform: translateX(22px);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--primary-100);
  transition: transform 0.2s, opacity 0.2s;
}

/* ==========================================================================
   Hero
   ========================================================================== */

main {
  padding-top: 72px;
}

.hero {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--surface-90);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-7);
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-5);
  padding: 7px 12px;
  border-radius: var(--radius-full);
  background: rgba(7, 44, 75, 0.08);
  color: var(--primary-100);
  font-size: 13px;
  font-weight: 800;
}

.eyebrow .material-symbols-outlined {
  color: var(--accent-100);
  font-size: 18px;
}

h1 {
  color: var(--primary-100);
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.06em;
  font-weight: 900;
}

.hero-title em {
  position: relative;
  display: inline-block;
  background: linear-gradient(100deg, var(--accent-100) 0%, var(--primary-80) 82%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  font-style: normal;
  -webkit-text-fill-color: transparent;
}

.hero-title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--accent-100);
  opacity: 0.55;
}

.hero-content p {
  max-width: 560px;
  margin-top: var(--space-5);
  color: var(--text-secondary);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.trust-row {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-top: var(--space-7);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-soft);
}

.avatars {
  display: flex;
}

.avatars img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  margin-left: -10px;
  border: 2px solid var(--surface-100);
  border-radius: 50%;
}

.avatars img:first-child {
  margin-left: 0;
}

.trust-row p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.trust-row strong {
  color: var(--primary-100);
}

/* ==========================================================================
   Hero orbital
   ========================================================================== */

.hero-visual {
  position: relative;
  animation: tech-float 8s ease-in-out infinite;
}

.orbital-container {
  position: relative;
  width: min(100%, 540px);
  aspect-ratio: 1;
  margin-inline: auto;
}

/* Outer orbit */
.orbital-container::before {
  content: "";
  position: absolute;
  inset: 4%;
  z-index: 0;
  border: 1px dashed rgba(7, 44, 75, 0.14);
  border-radius: 50%;
}

/* Middle orbit */
.orbital-container::after {
  content: "";
  position: absolute;
  inset: 16%;
  z-index: 0;
  border: 1px solid rgba(7, 44, 75, 0.12);
  border-radius: 50%;
}

.hero-illustration {
  position: absolute;
  inset: 8%;
  z-index: 4;
  width: 84%;
  height: 84%;
  object-fit: contain;
}

/* Inner green orbit */
.orbital-container .orbit-runner-inner::before {
  content: "";
  position: absolute;
  inset: 24%;
  border: 1px dashed rgba(20, 184, 166, 0.28);
  border-radius: 50%;
  pointer-events: none;
  animation: none;
}

.icon-node {
  position: absolute;
  z-index: 4;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(7, 44, 75, 0.08);
  border-radius: 50%;
  background: var(--surface-100);
  color: var(--primary-100);
  box-shadow: 0 14px 32px rgba(7, 44, 75, 0.12);
}

.icon-node .material-symbols-outlined {
  font-size: 25px;
  font-variation-settings:
    'FILL' 0,
    'wght' 100,
    'GRAD' 0,
    'opsz' 24;
}

.icon-accent {
  background: var(--accent-100);
  color: var(--text-inverse);
  border-color: transparent;
  box-shadow: 0 18px 36px rgba(20, 184, 166, 0.28);
}

.icon-primary {
  background: var(--primary-100);
  color: var(--text-inverse);
  border-color: transparent;
  box-shadow: 0 18px 36px rgba(7, 44, 75, 0.22);
}

.icon-soft {
  background: var(--surface-100);
  color: var(--primary-60);
}

.icon-line {
  width: 44px;
  height: 44px;
  background: var(--surface-100);
  color: var(--accent-100);
}

.node-static-1 {
  top: 10.2%;
  left: 73%;
  transform: translate(-50%, -50%);
}

.node-static-2 {
  top: 36.2%;
  left: 8.4%;
  transform: translate(-50%, -50%);
}

.node-static-3 {
  top: 62%;
  left: 95%;
  transform: translate(-50%, -50%);
}

.node-static-4 {
  top: 88.4%;
  left: 27%;
  transform: translate(-50%, -50%);
}

.node-static-5 {
  top: 16%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.node-static-6 {
  top: 77%;
  left: 70%;
  transform: translate(-50%, -50%);
}

.orbit-runner {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

.orbit-runner-outer .icon-node {
  top: 4%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.orbit-runner-inner .icon-node {
  top: 24%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.runner-speed-1 {
  animation-name: orbit;
  animation-duration: 42s;
}

.runner-speed-2 {
  transform: rotate(130deg);
  animation-name: orbit;
  animation-duration: 58s;
  animation-direction: reverse;
}

.runner-speed-3 {
  animation-name: orbit;
  animation-duration: 36s;
  animation-direction: reverse;
}

.runner-speed-4 {
  transform: rotate(190deg);
  animation-name: orbit;
  animation-duration: 52s;
}

.orbit-dot {
  position: absolute;
  z-index: 6;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-100);
  box-shadow: 0 0 10px rgba(20, 184, 166, 0.35);
  pointer-events: none;
}

.dot-outer-1 {
  top: 18%;
  left: 18%;
}

.dot-outer-2 {
  top: 42%;
  right: 4%;
}

.dot-middle-1 {
  bottom: 18%;
  left: 32%;
}

@keyframes orbit {
  to {
    rotate: 360deg;
  }
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section-header {
  max-width: 680px;
  margin: 0 auto var(--space-7);
  text-align: center;
}

.section-header h2 {
  color: var(--primary-100);
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-weight: 900;
}

.section-header p {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-size: 16px;
}

/* ==========================================================================
   Features / Modules
   ========================================================================== */

.modules {
  background: var(--surface-100);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.feature-card {
  min-height: 300px;
  padding: var(--space-6);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  background: var(--surface-100);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(7, 44, 75, 0.22);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 60px;
  height: 60px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  border-radius: var(--radius-lg);
}

.feature-icon .material-symbols-outlined {
  font-size: 30px;
  font-variation-settings:
    'FILL' 0,
    'wght' 400,
    'GRAD' 0,
    'opsz' 24;
}

.feature-card h3 {
  margin-bottom: var(--space-3);
  color: var(--primary-100);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.04em;
  font-weight: 900;
}

.feature-card p {
  color: var(--primary-60);
  font-size: 18px;
  line-height: 1.55;
}

.feature-icon-violet {
  background: rgba(124, 58, 237, 0.1);
  color: #7c3aed;
}

.feature-icon-warning {
  background: rgba(251, 191, 36, 0.14);
  color: var(--warning);
}

.feature-icon-info {
  background: rgba(96, 165, 250, 0.12);
  color: var(--info);
}

.feature-icon-success {
  background: rgba(74, 222, 128, 0.12);
  color: var(--success);
}

.feature-icon-accent {
  background: var(--accent-soft);
  color: var(--accent-100);
}

.feature-icon-error {
  background: rgba(248, 113, 113, 0.12);
  color: var(--error);
}

/* ==========================================================================
   Process
   ========================================================================== */

.process {
  background: var(--surface-90);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.process-card {
  min-height: 300px;
  padding: var(--space-6);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  background: var(--surface-100);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.process-card:hover {
  transform: translateY(-4px);
  border-color: rgba(7, 44, 75, 0.22);
  box-shadow: var(--shadow-md);
}

.process-number {
  display: block;
  margin-bottom: var(--space-5);
  color: var(--primary-20);
  font-size: 52px;
  line-height: 1;
  letter-spacing: -0.06em;
  font-weight: 900;
}

.process-card h3 {
  margin-bottom: var(--space-3);
  color: var(--primary-100);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.04em;
  font-weight: 900;
}

.process-card p {
  color: var(--primary-60);
  font-size: 17px;
  line-height: 1.6;
}

/* ==========================================================================
   Pricing
   ========================================================================== */

.pricing {
  background: var(--surface-80);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.pricing-card {
  position: relative;
  display: grid;
  padding: 36px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface-100);
  transition:
    transform 0.28s ease,
    border-color 0.28s ease,
    box-shadow 0.28s ease;
}

.pricing-card:hover,
.pricing-card.featured:hover {
  transform: translateY(-6px) scale(1.015);
  border-color: var(--primary-100);
  box-shadow: 0 20px 45px rgba(7, 44, 75, 0.12);
}

.pricing-card.featured {
  border: 1px solid var(--border);
  box-shadow: none;
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--primary-80);
  color: var(--text-inverse);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.pricing-card h3 {
  color: var(--primary-60);
  font-size: 30px;
  font-weight: 800;
}

.price {
  display: flex;
  align-items: flex-start;
  gap: 2px;

  margin-top: var(--space-4);

  color: var(--primary-100);
  line-height: 1;
  letter-spacing: -0.06em;
}

.price span:first-child {
  margin-top: 8px;

  color: var(--primary-40);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.price strong,
.price-number {
  font-size: 40px;
  font-weight: 900;
}

.price span:last-child {
  align-self: flex-end;
  margin-bottom: 10px;
  margin-left: 4px;

  color: var(--primary-40);
  font-size: 18px;
  font-weight: 600;
}

.pricing-card p {
  /* min-height: 54px;
  margin-top: var(--space-3); */
  color: var(--text-secondary);
}

.pricing-card ul {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: var(--space-5) 0;
  color: var(--primary-80);
}

.pricing-card li {
  display: flex;
  gap: var(--space-2);
}

.pricing-card li::before {
  content: "✓";
  color: var(--accent-80);
  font-weight: 900;
}

.pricing-card .btn {
  width: 100%;
}

/* ==========================================================================
   CTA
   ========================================================================== */

.cta {
  background: var(--primary-100);
}

.cta-card {
  max-width: 840px;
  margin-inline: auto;
  text-align: center;
}

.cta-card h2 {
  color: var(--text-inverse);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.cta-card p {
  max-width: 640px;
  margin: var(--space-4) auto 0;
  color: var(--primary-20);
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.cta-actions span {
  color: var(--primary-20);
  font-size: 13px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.cdf-footer {
    background: #ffffff;
    border-top: 1px solid #e6eaf0;
    padding: 48px 32px 24px;
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    color: #1B2A41;
  }
  .cdf-footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    align-items: start;
  }
  .cdf-footer__copy{
    margin: 16px 0 0;
  }
  .cdf-footer__copy,
  .cdf-footer__tagline {
    color: #4a5775;
    font-size: 14px;
    line-height: 1.6;
    max-width: 320px;
  }
  .cdf-footer__links {
    list-style: none; 
    padding: 0; 
    margin: 0;
    display: flex; 
    gap: 10px;
    margin: 30px 0 0;
  }
  .cdf-footer__links a {
    display: flex; 
    align-items: center; 
    gap: 8px;
    color: #4a5775;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    transition: color .15s ease;
  }
  .cdf-footer__links a:hover { color: #2EB5A4; }
  .cdf-footer__links .material-icons {
    font-size: 16px;
    color: #2EB5A4;
  }
  .cdf-footer__links .material-symbols-outlined{
     color: #2EB5A4;
     font-size: 18px;
  }
  .cdf-footer__bottom {
    max-width: 1200px;
    margin: 40px auto 0;
    padding-top: 20px;
    border-top: 1px solid #eef1f6;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 12px;
    font-size: 12px; color: #7a869a;
  }
  .cdf-footer__status {
    display: inline-flex; align-items: center; gap: 6px;
  }
  .cdf-footer__status::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: #2EB5A4;
    box-shadow: 0 0 0 3px rgba(46,181,164,.18);
  }
/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes tech-float {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }

  50% {
    transform: translateY(-10px) scale(1.01);
  }
}