/* VoidLink VPN — dark premium landing */

:root {
  --bg: #0a0b10;
  --bg-elevated: #11131c;
  --bg-card: #161822;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8eaef;
  --text-muted: rgba(232, 234, 239, 0.55);
  --text-dim: rgba(232, 234, 239, 0.35);
  --accent: #6b8fb5;
  --accent-light: #8aa8c9;
  --accent-dark: #3d5a78;
  --accent-glow: rgba(107, 143, 181, 0.25);
  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --container: min(1280px, calc(100% - 48px));
  --header-h: 72px;
  --banner-h: 56px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

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

ul, ol {
  list-style: none;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

/* Grain overlay */
.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Top banner */
.banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 101;
  background: linear-gradient(90deg, rgba(61, 90, 120, 0.35), rgba(107, 143, 181, 0.2));
  border-bottom: 1px solid var(--border);
  padding-block: 10px;
}

.banner__inner {
  text-align: center;
}

.banner__text {
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.4;
}

.banner__icon,
.banner__check {
  display: inline;
}

/* Header */
.header {
  position: fixed;
  top: var(--banner-h);
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
}

.header--scrolled {
  background: rgba(10, 11, 16, 0.85);
  backdrop-filter: blur(16px);
  border-color: var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.nav__logo {
  border-radius: 8px;
}

.nav__dot {
  color: var(--accent);
}

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

.nav__links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.25s;
}

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

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.nav__burger--open span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav__burger--open span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  top: calc(var(--banner-h) + var(--header-h));
  left: 0;
  right: 0;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 99;
}

.nav-mobile a {
  font-size: 1.125rem;
  color: var(--text-muted);
}

.nav-mobile[hidden] {
  display: none !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0;
  border: 1px solid var(--border-strong);
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s, border-color 0.3s, transform 0.2s;
  white-space: nowrap;
}

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

.btn--sm {
  padding: 10px 20px;
  font-size: 0.8125rem;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  border-color: transparent;
  color: #fff;
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn--ghost {
  background: transparent;
  color: var(--text-muted);
}

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

.btn--outline {
  background: transparent;
  width: 100%;
}

.btn--outline:hover {
  background: var(--bg-card);
  border-color: var(--accent);
  color: var(--accent-light);
}

/* Hero */
.hero__desc strong {
  color: var(--accent-light);
  font-weight: 600;
}

.hero {
  min-height: 100vh;
  padding-top: calc(var(--banner-h) + var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
  padding-block: 80px 48px;
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__glow {
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  animation: pulse 4s ease-in-out infinite;
}

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

.hero__logo {
  position: relative;
  width: min(220px, 40vw);
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.5));
  animation: float 6s ease-in-out infinite;
}

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

.hero__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: 32px;
}

.hero__title-line {
  display: block;
  font-size: clamp(3rem, 8vw, 6.5rem);
}

.hero__title-line--accent {
  color: var(--text-muted);
  font-weight: 400;
}

.hero__desc {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 56px;
}

.hero__meta {
  display: flex;
  align-items: flex-end;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.hero__meta-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero__meta-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.hero__meta-divider {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--text-dim);
  padding-bottom: 4px;
}

.hero__marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  padding-block: 20px;
}

.hero__marquee-track {
  display: flex;
  gap: 48px;
  animation: marquee 30s linear infinite;
  width: max-content;
}

.hero__marquee-track span {
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  white-space: nowrap;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Sections */
.section {
  padding-block: 120px;
}

.section--border {
  border-bottom: 1px solid var(--border);
}

.section--dark {
  background: var(--bg-elevated);
}

.section__brand {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.section__brand span {
  color: var(--accent);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.section__head {
  margin-bottom: 80px;
}

.section__head--row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 48px;
}

.section__subtitle {
  max-width: 360px;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* About */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: start;
}

.about__lead {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.5;
  letter-spacing: -0.02em;
  color: var(--text);
}

.about__mission {
  border-left: 1px solid var(--border-strong);
  padding-left: 40px;
}

.about__mission-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
}

.about__mission-text {
  color: var(--text-muted);
  line-height: 1.8;
}

/* Stats */
.stats {
  padding-block: 80px;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.stat {
  background: var(--bg);
  padding: 48px 32px;
  text-align: center;
}

.stat__value {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat__suffix {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent);
}

.stat__value--text {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  color: var(--accent-light);
}

.stat__label {
  margin-top: 16px;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Features */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.feature {
  background: var(--bg);
  padding: 48px 40px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  transition: background 0.4s var(--ease);
}

.feature:hover {
  background: var(--bg-card);
}

.feature__emoji {
  font-size: 1.75rem;
  line-height: 1;
  margin-bottom: 24px;
  display: block;
}

.feature__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  margin-top: auto;
}

.feature__text {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.step {
  background: var(--bg-elevated);
  padding: 48px 40px;
}

.step__time {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 24px;
}

.step__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.step__text {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Pricing */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.pricing__grid--dual {
  grid-template-columns: repeat(2, 1fr);
  max-width: 880px;
  margin-inline: auto;
}

.price-card {
  position: relative;
  border: 1px solid var(--border);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}

.price-card:hover {
  border-color: var(--border-strong);
}

.price-card--featured {
  background: var(--bg-card);
  border-color: var(--accent-dark);
  transform: scale(1.02);
}

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

.price-card__badge {
  position: absolute;
  top: -1px;
  left: 32px;
  transform: translateY(-50%);
  background: var(--accent);
  color: var(--bg);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 12px;
}

.price-card__period {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.price-card__amount {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.price-card__amount span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-muted);
}

.price-card__note {
  font-size: 0.8125rem;
  color: var(--accent);
  margin-bottom: 32px;
}

.price-card__list {
  flex: 1;
  margin-bottom: 32px;
}

.price-card__list li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.price-card__list li:last-child {
  border-bottom: none;
}

.pricing__note {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-dim);
}

/* FAQ */
.faq {
  max-width: 800px;
}

.faq__item {
  border-top: 1px solid var(--border);
}

.faq__item:last-child {
  border-bottom: 1px solid var(--border);
}

.faq__item summary {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  padding: 28px 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  letter-spacing: -0.02em;
  transition: color 0.25s;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__item summary::after {
  content: "+";
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--text-dim);
  transition: transform 0.3s var(--ease);
}

.faq__item[open] summary::after {
  transform: rotate(45deg);
}

.faq__item[open] summary {
  color: var(--accent-light);
}

.faq__item p {
  padding-bottom: 28px;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 640px;
}

/* CTA */
.cta {
  padding-block: 140px;
}

.cta__inner {
  text-align: center;
}

.cta__brand {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 32px;
}

.cta__accent {
  color: var(--text-muted);
  font-weight: 400;
}

.cta__text {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

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

.footer__grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  grid-template-rows: auto auto;
  gap: 24px 48px;
  align-items: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 0.875rem;
}

.footer__brand strong {
  color: var(--accent);
  font-weight: 500;
}

.footer__nav {
  display: flex;
  gap: 24px;
  grid-column: 2;
}

.footer__nav a {
  font-size: 0.8125rem;
  color: var(--text-muted);
  transition: color 0.25s;
}

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

.footer__copy {
  font-size: 0.75rem;
  color: var(--text-dim);
  grid-column: 1;
  grid-row: 2;
}

.footer__legal {
  display: flex;
  gap: 24px;
  grid-column: 2 / -1;
  grid-row: 2;
  justify-content: flex-end;
}

.footer__legal a {
  font-size: 0.75rem;
  color: var(--text-dim);
  transition: color 0.25s;
}

.footer__legal a:hover {
  color: var(--text-muted);
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* Responsive */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__visual {
    order: -1;
  }

  .hero__desc,
  .hero__actions,
  .hero__meta {
    margin-inline: auto;
  }

  .hero__meta {
    justify-content: center;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about__mission {
    border-left: none;
    border-top: 1px solid var(--border);
    padding-left: 0;
    padding-top: 40px;
  }

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

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

  .pricing__grid,
  .pricing__grid--dual {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-inline: auto;
  }

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

  .section__head--row {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  :root {
    --container: calc(100% - 32px);
    --banner-h: 64px;
  }

  .banner__text {
    font-size: 0.75rem;
  }

  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__burger {
    display: flex;
  }

  .section {
    padding-block: 80px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__nav,
  .footer__legal {
    grid-column: 1;
    justify-content: center;
    flex-wrap: wrap;
  }

  .footer__copy {
    grid-row: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}