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

:root {
  --bg:       #09090B;
  --bg-2:     #111114;
  --bg-3:     #1A1A1F;
  --surface:  #222228;
  --border:   #2A2A32;
  --txt:      #FAFAFA;
  --txt-2:    #A1A1AA;
  --txt-3:    #71717A;
  --accent:   #7E57C2;
  --accent-2: #9575CD;
  --green:    #4ADE80;
  --radius:   16px;
  --radius-sm:10px;
  --nav-h:    64px;
  --max-w:    1200px;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--txt);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ─── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600; font-size: 15px;
  border: none; cursor: pointer;
  transition: all .25s ease;
}
.btn:hover { background: var(--accent-2); transform: translateY(-1px); box-shadow: 0 8px 30px rgba(126,87,194,.3); }
.btn--sm { padding: 8px 18px; font-size: 14px; }
.btn--lg { padding: 16px 32px; font-size: 16px; }
.btn--ghost { background: transparent; border: 1px solid var(--border); color: var(--txt-2); }
.btn--ghost:hover { border-color: var(--accent); color: var(--txt); background: transparent; box-shadow: none; }

/* ─── Nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  transition: all .3s ease;
}
.nav.scrolled {
  background: rgba(9,9,11,.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo {
  font-size: 20px; font-weight: 800; letter-spacing: -.5px;
  display: flex; align-items: center; gap: 8px;
}
.nav__logo-icon {
  color: var(--accent); font-size: 16px;
}
.nav__links {
  display: flex; align-items: center; gap: 32px;
}
.nav__links a {
  font-size: 14px; color: var(--txt-2); font-weight: 500;
  transition: color .2s;
}
.nav__links a:hover { color: var(--txt); }
.nav__toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 24px; height: 20px; position: relative;
}
.nav__toggle span {
  display: block; width: 100%; height: 2px; background: var(--txt);
  border-radius: 2px; position: absolute; left: 0;
  transition: all .3s ease;
}
.nav__toggle span:nth-child(1) { top: 0; }
.nav__toggle span:nth-child(2) { top: 9px; }
.nav__toggle span:nth-child(3) { top: 18px; }
.nav__toggle.open span:nth-child(1) { top: 9px; transform: rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { top: 9px; transform: rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: rgba(9,9,11,.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px;
  display: flex; flex-direction: column; gap: 16px;
  transform: translateY(-110%);
  transition: transform .35s ease;
  z-index: 99;
  border-bottom: 1px solid var(--border);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu a { font-size: 16px; color: var(--txt-2); font-weight: 500; padding: 8px 0; }
.mobile-menu .btn { text-align: center; justify-content: center; }

/* ─── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  padding: calc(var(--nav-h) + 60px) 24px 80px;
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center;
  position: relative;
}
.hero__bg {
  position: fixed; top: 0; left: 0; right: 0; height: 100vh;
  background:
    radial-gradient(ellipse 60% 50% at 20% 40%, rgba(126,87,194,.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 30%, rgba(66,165,245,.08) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}
.hero__badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(126,87,194,.12);
  border: 1px solid rgba(126,87,194,.25);
  border-radius: 100px;
  font-size: 13px; font-weight: 600;
  color: var(--accent-2);
  margin-bottom: 24px;
}
.hero__title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #42A5F5 50%, var(--green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__sub {
  font-size: 18px; color: var(--txt-2);
  max-width: 520px; line-height: 1.7;
  margin-bottom: 36px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero device mockup */
.hero__visual { display: flex; justify-content: center; }
.hero__device {
  width: 100%; max-width: 500px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,.05) inset;
  transform: perspective(1200px) rotateY(-8deg) rotateX(4deg);
  transition: transform .6s ease;
}
.hero__device:hover { transform: perspective(1200px) rotateY(-2deg) rotateX(1deg); }
.hero__screen { width: 100%; }
.mock-header {
  display: flex; gap: 6px; padding: 12px 16px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}
.mock-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--surface); }
.mock-body { display: flex; min-height: 280px; }
.mock-sidebar {
  width: 56px; padding: 16px 12px;
  background: var(--bg-3);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 10px;
}
.mock-nav-item {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--surface);
}
.mock-nav-item.active { background: var(--accent); opacity: .7; }
.mock-content { flex: 1; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.mock-card {
  height: 48px; border-radius: 10px;
  background: var(--surface);
}
.mock-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; flex: 1; }
.mock-stat {
  border-radius: 10px;
  background: var(--surface);
  min-height: 80px;
}

/* shimmer */
@keyframes shimmer {
  0%   { opacity: .3; }
  50%  { opacity: .6; }
  100% { opacity: .3; }
}
.shimmer { animation: shimmer 2s ease-in-out infinite; }
.delay-100 { animation-delay: .1s; }
.delay-200 { animation-delay: .2s; }
.delay-300 { animation-delay: .3s; }
.delay-400 { animation-delay: .4s; }

/* ─── Sections ────────────────────────────────────────────────────────────── */
.section {
  padding: 120px 0;
}
.section--dark { background: var(--bg-2); }
.section__header {
  text-align: center; margin-bottom: 64px;
}
.section__tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(126,87,194,.1);
  border: 1px solid rgba(126,87,194,.2);
  border-radius: 100px;
  font-size: 12px; font-weight: 700;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}
.section__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.section__sub {
  font-size: 17px; color: var(--txt-2);
  max-width: 560px; margin: 0 auto;
}

/* Features grid */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all .3s ease;
}
.feature-card:hover {
  border-color: rgba(126,87,194,.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
}
.feature-card__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}
.feature-card h3 {
  font-size: 18px; font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px; color: var(--txt-2);
  line-height: 1.6;
}

/* Platforms */
.platforms-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.platform-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
  transition: all .3s ease;
}
.platform-card:hover {
  border-color: rgba(126,87,194,.3);
  transform: translateY(-4px);
}
.platform-card__icon {
  color: var(--accent-2);
  margin-bottom: 20px;
  display: flex; justify-content: center;
}
.platform-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.platform-card p { font-size: 14px; color: var(--txt-2); }

/* Download */
.download-box {
  text-align: center;
  background: linear-gradient(135deg, rgba(126,87,194,.1), rgba(66,165,245,.08));
  border: 1px solid rgba(126,87,194,.2);
  border-radius: 24px;
  padding: 80px 40px;
}
.download-box h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  margin-bottom: 12px;
}
.download-box p {
  font-size: 17px; color: var(--txt-2);
  margin-bottom: 32px;
}

/* ─── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border);
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.footer__brand p {
  font-size: 14px; color: var(--txt-3);
  margin-top: 12px; max-width: 280px;
}
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h4 {
  font-size: 13px; font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--txt-3);
  margin-bottom: 6px;
}
.footer__col a {
  font-size: 14px; color: var(--txt-2);
  transition: color .2s;
}
.footer__col a:hover { color: var(--txt); }
.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
}
.footer__bottom p { font-size: 13px; color: var(--txt-3); }

/* ─── Animations ──────────────────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Legal pages ─────────────────────────────────────────────────────────── */
.legal {
  max-width: 720px; margin: 0 auto;
  padding: calc(var(--nav-h) + 60px) 24px 80px;
}
.legal h1 {
  font-size: 36px; font-weight: 800;
  margin-bottom: 8px;
}
.legal .legal__date {
  font-size: 14px; color: var(--txt-3);
  margin-bottom: 40px;
}
.legal h2 {
  font-size: 22px; font-weight: 700;
  margin-top: 40px; margin-bottom: 12px;
}
.legal h3 {
  font-size: 17px; font-weight: 600;
  margin-top: 24px; margin-bottom: 8px;
}
.legal p, .legal li {
  font-size: 15px; color: var(--txt-2);
  line-height: 1.8; margin-bottom: 12px;
}
.legal ul { padding-left: 24px; }
.legal a { color: var(--accent-2); text-decoration: underline; }

/* Support page */
.support-hero {
  text-align: center;
  padding: calc(var(--nav-h) + 80px) 24px 60px;
}
.support-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800; margin-bottom: 12px;
}
.support-hero p {
  font-size: 17px; color: var(--txt-2);
  max-width: 560px; margin: 0 auto;
}
.support-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  max-width: var(--max-w); margin: 0 auto;
  padding: 0 24px 120px;
}
.support-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all .3s ease;
}
.support-card:hover {
  border-color: rgba(126,87,194,.3);
  transform: translateY(-2px);
}
.support-card__icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(126,87,194,.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  color: var(--accent-2);
}
.support-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.support-card p { font-size: 14px; color: var(--txt-2); margin-bottom: 16px; }
.support-card a.link {
  font-size: 14px; color: var(--accent-2); font-weight: 600;
  transition: color .2s;
}
.support-card a.link:hover { color: var(--accent); }

/* Delete account page */
.delete-steps {
  max-width: 720px; margin: 0 auto;
  padding: 0 24px 80px;
}
.delete-step {
  display: flex; gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.delete-step__num {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 12px;
  background: rgba(239,83,80,.1);
  color: #EF5350;
  font-weight: 800; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
}
.delete-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.delete-step p { font-size: 14px; color: var(--txt-2); }

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: calc(var(--nav-h) + 40px); }
  .hero__sub { margin: 0 auto 36px; }
  .hero__actions { justify-content: center; }
  .hero__device { transform: perspective(1200px) rotateY(0) rotateX(4deg); max-width: 400px; }
  .hero__device:hover { transform: perspective(1200px) rotateY(0) rotateX(1deg); }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .platforms-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav__toggle { display: block; }
  .features-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .download-box { padding: 48px 24px; }
  .section { padding: 80px 0; }
}