/* ===== Variables ===== */
:root {
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-card: #16161a;
  --bg-card-hover: #1c1c21;

  --text-primary: #f0f0f0;
  --text-secondary: #8a8a8e;
  --text-dim: #555559;

  --color-accent: #154999;
  --color-accent-dim: rgba(21, 73, 153, 0.15);
  --color-green: #34d399;
  --color-red: #f87171;
  --color-yellow: #fbbf24;
  --color-blue: #60a5fa;
  --color-purple: #a78bfa;

  --border: #222228;
  --border-light: #2a2a30;

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1400px;

  --header-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-color: var(--border-light) transparent;
  scrollbar-width: auto;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-dim);
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* ===== Utility ===== */
.color-green {
  color: var(--color-green);
}
.color-red {
  color: var(--color-red);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: white;
}

.btn--primary:hover {
  background: #6b59de;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 106, 239, 0.3);
}

.btn--ghost {
  border: 1px solid var(--border-light);
  background: #534f4f33;
  color: var(--text-secondary);
}

.btn--ghost:hover {
  border-color: var(--text-dim);
  color: var(--text-primary);
}

.btn--small {
  padding: 8px 16px;
  font-size: 13px;
}

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge--green {
  background: rgba(52, 211, 153, 0.15);
  color: var(--color-green);
}
.badge--yellow {
  background: rgba(251, 191, 36, 0.15);
  color: var(--color-yellow);
}
.badge--red {
  background: rgba(248, 113, 113, 0.15);
  color: var(--color-red);
}
.badge--blue {
  background: rgba(96, 165, 250, 0.15);
  color: var(--color-blue);
}
.badge--purple {
  background: rgba(167, 139, 250, 0.15);
  color: var(--color-purple);
}

/* ===== Section Title ===== */
.section-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.section-title__white {
  display: block;
  color: var(--text-primary);
}
.section-title__dim {
  display: block;
  color: var(--text-dim);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 48px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header__logo-icon {
  color: var(--color-accent);
}

.header__nav {
  display: flex;
  gap: 32px;
}

.header__link {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.header__link:hover {
  color: var(--text-primary);
}

.header__cta {
  padding: 8px 20px;
  background: var(--color-accent);
  color: white;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s;
}

.header__cta:hover {
  background: #6b59de;
  transform: translateY(-1px);
}

/* Lang toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border-light);
  border-radius: 50px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s;
  font-family: var(--font);
  letter-spacing: 0.5px;
}

.lang-toggle:hover {
  color: var(--text-primary);
  border-color: var(--color-accent);
}

.lang-icon {
  flex-shrink: 0;
}

.header__burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
}

.header__burger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all 0.3s;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--bg-primary);
  padding: calc(var(--header-height) + 32px) 24px 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.mobile-menu--open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-menu__link {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-secondary);
}

.mobile-menu__cta {
  display: inline-block;
  margin-top: 16px;
  padding: 14px 32px;
  background: var(--color-accent);
  color: white;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 40px) 48px 80px;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin-left: max(24px, calc((100vw - var(--max-width)) / 2));
}

.hero__title {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.hero__title-white {
  display: block;
}
.hero__title-dim {
  display: block;
  color: var(--text-dim);
}

.hero__subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__globe {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.hero__fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to bottom, transparent, var(--bg-primary));
  z-index: 2;
  pointer-events: none;
}

/* ===== Stats ===== */
.stats {
  position: relative;
  z-index: 3;
  padding: 0 48px;
  margin-top: -60px;
}

.stats__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  padding: 40px 48px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.stats__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stats__value {
  display: flex;
  align-items: baseline;
}

.stats__number {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  min-width: 2ch;
  text-align: right;
}

.stats__suffix {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-accent);
}

.stats__label {
  font-size: 14px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stats__divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ===== Features ===== */
.features {
  padding: 120px 48px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.features__header {
  margin-bottom: 64px;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card--large {
  grid-column: span 2;
}

.feature-card__icon {
  margin-bottom: 20px;
}

.feature-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.4s;
}

.feature-card:hover .feature-icon {
  background: var(--color-accent-dim);
  border-color: rgba(124, 106, 239, 0.3);
  color: var(--color-accent);
}

.feature-card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.feature-card__desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== How It Works ===== */
.how-it-works {
  padding: 120px 48px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.how-it-works__header {
  margin-bottom: 64px;
}

.how-it-works__layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}

.how-it-works__steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step {
  display: flex;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius);
  text-align: left;
  transition: all 0.3s;
  border: 1px solid transparent;
}

.step:hover {
  background: var(--bg-secondary);
}

.step--active {
  background: var(--bg-secondary);
  border-color: var(--border);
}

.step__marker {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--text-dim);
  margin-top: 6px;
  transition: all 0.3s;
}

.step--active .step__marker {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 12px rgba(124, 106, 239, 0.4);
}

.step__title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  transition: color 0.3s;
}

.step:not(.step--active) .step__title {
  color: var(--text-secondary);
}

.step__desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.4s ease;
}

.step--active .step__desc {
  max-height: 80px;
  opacity: 1;
  margin-top: 4px;
}

/* ===== Preview Panels ===== */
.how-it-works__preview {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  min-height: 360px;
  overflow: hidden;
}

.preview-panel {
  position: absolute;
  inset: 24px;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.5s ease;
  pointer-events: none;
}

.preview-panel--active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
  position: relative;
  inset: auto;
}

/* Preview Table */
.preview-table__header {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 100px;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

.preview-table__row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 100px;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(34, 34, 40, 0.5);
  transition: background 0.2s;
}

.preview-table__row:hover {
  background: rgba(124, 106, 239, 0.04);
}

.preview-table__row:last-child {
  border-bottom: none;
}

.preview-table--compact .preview-table__header,
.preview-table--compact .preview-table__row {
  grid-template-columns: 1fr 0.8fr 0.8fr 100px;
}

/* KPI */
.preview-kpi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.preview-kpi__item {
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.preview-kpi__value {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.preview-kpi__label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Balance */
.preview-balance {
  padding: 24px;
  background: linear-gradient(135deg, var(--bg-card), rgba(124, 106, 239, 0.08));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.preview-balance__label {
  font-size: 14px;
  color: var(--text-dim);
}

.preview-balance__value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  flex: 1;
}

/* ===== Scroll Story ===== */
.scroll-story {
  position: relative;
}

.scroll-story__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.scroll-story__frame {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.scroll-story__word {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 900;
  letter-spacing: -0.04em;
  opacity: 0;
  transform: translateY(60px);
  will-change: opacity, transform;
}

.scroll-story__word:nth-child(1) {
  color: var(--color-accent);
}
.scroll-story__word:nth-child(2) {
  color: var(--color-green);
}
.scroll-story__word:nth-child(3) {
  color: var(--text-primary);
}

.scroll-story__icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: currentColor;
  flex-shrink: 0;
}

.scroll-story__spacer {
  height: 200vh;
}

/* ===== CTA ===== */
.cta {
  padding: 120px 48px;
  text-align: center;
}

.cta__inner {
  max-width: 600px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  letter-spacing: -0.04em;
  margin-bottom: 16px;
}

.cta__subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.cta__contacts {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cta__contact {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text-secondary);
  transition: all 0.3s;
}

.cta__contact:hover {
  border-color: var(--color-accent);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.cta__contact svg {
  flex-shrink: 0;
}

/* ===== Footer ===== */
.footer {
  padding: 32px 48px;
  border-top: 1px solid var(--border);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copy {
  font-size: 14px;
  color: var(--text-dim);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--text-secondary);
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
  .header__nav,
  .header__cta {
    display: none;
  }

  .header__burger {
    display: flex;
  }
  .mobile-menu {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + 32px) 24px 60px;
    flex-direction: column;
  }

  .hero__content {
    margin-left: 0;
    max-width: 100%;
    z-index: 2;
  }

  .hero__globe {
    opacity: 0.6;
    transform: translateY(-7%) translateX(15%)
    
  }

  .hero__fade {
    display: none;
  }

  .stats {
    margin-top: 0;
  }

  .stats__inner {
    flex-direction: column;
    gap: 24px;
    padding: 32px 24px;
  }

  .features,
  .how-it-works,
  .cta {
    padding: 60px 24px;
  }

  .stats__divider {
    width: 80px;
    height: 1px;
  }

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

  .feature-card--large {
    grid-column: span 1;
  }

  .how-it-works__layout {
    grid-template-columns: 1fr;
  }

  .preview-table__header,
  .preview-table__row,
  .preview-table--compact .preview-table__header,
  .preview-table--compact .preview-table__row {
    grid-template-columns: 1fr 1fr 1fr 80px;
    font-size: 12px;
    padding: 10px 12px;
  }

  .preview-kpi {
    grid-template-columns: 1fr;
  }

  .scroll-story__word {
    font-size: clamp(36px, 10vw, 64px);
  }

  .scroll-story__icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .scroll-story__icon svg {
    width: 32px;
    height: 32px;
  }

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

  .footer__inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  transform: translateY(30px);
}

.animate-in--visible {
  animation: fadeInUp 0.8s ease forwards;
}