:root {
  --ia-bg: #080e1f;
  --ia-bg-elevated: #0b1226;
  --ia-text: #ffffff;
  --ia-muted: rgba(255, 255, 255, 0.62);
  --ia-green: #22c55e;
  --ia-blue: #38bdf8;
  --ia-mint: #48ca74;
  --ia-accent: var(--ia-green);
  --ia-accent-hover: #16a34a;
  --ia-card: rgba(11, 18, 38, 0.82);
  --ia-card-solid: #0f1729;
  --ia-border: rgba(255, 255, 255, 0.09);
  --ia-border-accent: rgba(34, 197, 94, 0.28);
  --ia-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.45);
  --ia-glow-green: rgba(34, 197, 94, 0.22);
  --ia-glow-blue: rgba(56, 189, 248, 0.18);
  --ia-radius: 24px;
  --ia-btn-radius: 16px;
  --ia-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  overscroll-behavior-y: none;
}

body.ia-page {
  margin: 0;
  font-family: var(--ia-font);
  background: var(--ia-bg);
  color: var(--ia-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
  overscroll-behavior-y: none;
}

body.ia-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 10% -10%, var(--ia-glow-green), transparent 55%),
    radial-gradient(ellipse 60% 45% at 95% 15%, var(--ia-glow-blue), transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(99, 102, 241, 0.08), transparent 55%);
  z-index: 0;
}

body.ia-page > :not(.ia-modal):not(.ia-toast) {
  position: relative;
  z-index: 1;
}

.ia-page a {
  color: inherit;
  text-decoration: none;
}

.ia-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.ia-topbar {
  padding: 20px 0 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.ia-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.ia-logo img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: 0 8px 20px -6px var(--ia-glow-green);
}

.ia-topbar-link {
  font-size: 0.9rem;
  color: var(--ia-muted);
  transition: color 0.2s;
}

.ia-topbar-link:hover {
  color: var(--ia-green);
}

.ia-hero {
  padding: 32px 0 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 900px) {
  .ia-hero {
    grid-template-columns: 1.05fr 0.95fr;
    padding: 48px 0 48px;
    gap: 48px;
  }
}

.ia-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid var(--ia-border-accent);
  color: var(--ia-mint);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.ia-kicker-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ia-green);
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.25);
}

.ia-title {
  margin: 0 0 16px;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.ia-lead {
  margin: 0 0 28px;
  font-size: 1.05rem;
  color: var(--ia-muted);
  max-width: 34rem;
}

.ia-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.ia-btn--platform {
  gap: 10px;
}

.ia-platform-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.9;
  filter: brightness(0) invert(0.88);
}

.ia-platform-icon--brand {
  filter: brightness(0) invert(1);
  object-fit: contain;
}

.ia-btn--primary .ia-platform-icon {
  filter: brightness(0) invert(1);
}

.ia-section-head--platform {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.ia-section-platform-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.16), rgba(56, 189, 248, 0.12));
  border: 1px solid var(--ia-border-accent);
}

.ia-section-platform-icon .ia-platform-icon {
  width: 26px;
  height: 26px;
  opacity: 1;
  filter: brightness(0) invert(1);
}

.ia-preview-platforms {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--ia-border);
}

.ia-preview-platforms .ia-platform-icon {
  width: 22px;
  height: 22px;
  opacity: 0.9;
  filter: brightness(0) invert(1);
}

.ia-modal-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 1.25rem;
  padding-right: 36px;
}

.ia-modal-title-row .ia-platform-icon {
  filter: none;
  opacity: 0.9;
}

.ia-apk-link--platform {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.ia-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: var(--ia-btn-radius);
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  font-family: inherit;
  text-align: center;
}

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

.ia-btn--primary {
  background: linear-gradient(90deg, var(--ia-green), var(--ia-blue));
  color: #fff;
  box-shadow: 0 12px 28px -8px rgba(34, 197, 94, 0.45);
}

.ia-btn--primary:hover {
  box-shadow: 0 16px 36px -10px rgba(34, 197, 94, 0.55);
  filter: brightness(1.05);
}

.ia-btn--ghost {
  background: var(--ia-glass, rgba(255, 255, 255, 0.06));
  border-color: var(--ia-border);
  color: var(--ia-text);
  backdrop-filter: blur(12px);
}

.ia-btn--ghost:hover {
  border-color: var(--ia-border-accent);
  color: var(--ia-green);
  box-shadow: 0 8px 24px -12px rgba(0, 0, 0, 0.4);
}

.ia-btn--full {
  width: 100%;
}

a.ia-btn {
  text-decoration: none;
}

.ia-btn.is-hidden {
  display: none;
}

.ia-hero-hint {
  font-size: 0.85rem;
  color: var(--ia-muted);
}

.ia-preview {
  position: relative;
  border-radius: calc(var(--ia-radius) + 4px);
  padding: 28px;
  background: linear-gradient(145deg, rgba(34, 197, 94, 0.14) 0%, rgba(56, 189, 248, 0.1) 45%, rgba(8, 14, 31, 0.4) 100%);
  border: 1px solid var(--ia-border);
  box-shadow: var(--ia-shadow);
  animation: ia-fade-up 0.7s ease both;
}

.ia-preview::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto;
  height: 60%;
  background: radial-gradient(circle, var(--ia-glow-green), transparent 70%);
  pointer-events: none;
}

.ia-preview-card {
  position: relative;
  background: var(--ia-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--ia-border);
  border-radius: var(--ia-radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: 0 16px 40px -16px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.ia-preview-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 16px;
  border-radius: 22px;
  box-shadow: 0 12px 28px -8px var(--ia-glow-green);
}

.ia-preview-name {
  margin: 0 0 6px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.ia-preview-badge {
  display: inline-block;
  margin: 0;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--ia-border);
  color: var(--ia-muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.ia-section {
  padding: 40px 0;
  scroll-margin-top: 24px;
}

.ia-section:last-of-type {
  padding-bottom: 32px;
}

.ia-section:nth-of-type(even) {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.ia-section-head {
  margin-bottom: 28px;
}

.ia-section-title {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.ia-section-sub {
  margin: 0;
  color: var(--ia-muted);
  font-size: 1rem;
  max-width: 40rem;
}

.ia-note {
  margin: 0 0 24px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #86efac;
  font-size: 0.92rem;
}

.ia-panel {
  background: var(--ia-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--ia-border);
  border-radius: var(--ia-radius);
  padding: 24px;
  box-shadow: var(--ia-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  animation: ia-fade-up 0.6s ease both;
}

.ia-steps {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.ia-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--ia-border);
}

.ia-step-num {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: var(--ia-green);
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.ia-step-text {
  margin: 0;
  padding-top: 8px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.88);
}

.ia-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ia-fallback {
  display: none;
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--ia-border);
  color: var(--ia-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.ia-fallback.is-visible {
  display: block;
}

.ia-apk-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: 4px;
  padding: 10px 16px;
  border: none;
  border-radius: 14px;
  background: transparent;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--ia-blue);
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.ia-apk-link:hover {
  color: var(--ia-green);
  background: rgba(255, 255, 255, 0.05);
}

.ia-benefits {
  padding: 40px 0 24px;
  margin-bottom: 0;
}

.ia-benefits-title {
  margin: 0 0 28px;
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.ia-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .ia-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .ia-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.ia-benefit {
  background: var(--ia-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--ia-border);
  border-radius: var(--ia-radius);
  padding: 22px 20px;
  box-shadow: 0 10px 28px -18px rgba(0, 0, 0, 0.45);
  animation: ia-fade-up 0.55s ease both;
}

.ia-benefit:nth-child(1) { animation-delay: 0.05s; }
.ia-benefit:nth-child(2) { animation-delay: 0.1s; }
.ia-benefit:nth-child(3) { animation-delay: 0.15s; }
.ia-benefit:nth-child(4) { animation-delay: 0.2s; }

.ia-benefit-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.18), rgba(56, 189, 248, 0.14));
  border: 1px solid var(--ia-border-accent);
  margin-bottom: 14px;
}

.ia-benefit h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
}

.ia-benefit p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ia-muted);
}

.ia-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s, visibility 0.25s;
}

.ia-modal.is-open {
  display: flex;
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

.ia-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
}

.ia-modal-sheet {
  position: relative;
  width: min(480px, 100%);
  max-height: min(88vh, 640px);
  overflow: auto;
  background: var(--ia-card-solid);
  border: 1px solid var(--ia-border);
  border-radius: 24px 24px 20px 20px;
  padding: 24px;
  box-shadow: 0 24px 64px -16px rgba(0, 0, 0, 0.6);
  transform: translateY(24px);
  transition: transform 0.28s ease;
}

.ia-modal.is-open .ia-modal-sheet {
  transform: translateY(0);
}

@media (min-width: 640px) {
  .ia-modal {
    align-items: center;
  }

  .ia-modal-sheet {
    border-radius: var(--ia-radius);
  }
}

.ia-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--ia-muted);
  font-size: 1.25rem;
  cursor: pointer;
  line-height: 1;
}

.ia-modal-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--ia-text);
}

.ia-modal h2:not(.ia-modal-title-row) {
  margin: 0 0 8px;
  font-size: 1.25rem;
  padding-right: 36px;
}

.ia-modal p {
  margin: 0 0 16px;
  color: var(--ia-muted);
  font-size: 0.92rem;
}

.ia-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(12px);
  z-index: 110;
  max-width: min(420px, calc(100% - 32px));
  padding: 12px 16px;
  border-radius: 14px;
  background: linear-gradient(90deg, var(--ia-green), var(--ia-blue));
  color: #fff;
  font-size: 0.9rem;
  box-shadow: 0 16px 40px -12px rgba(34, 197, 94, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

.ia-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@keyframes ia-fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 599px) {
  .ia-hero-actions .ia-btn {
    flex: 1 1 calc(50% - 5px);
    width: auto;
    min-width: calc(50% - 5px);
  }

  .ia-hero-actions #ia-hero-primary {
    flex: 1 1 100%;
    width: 100%;
  }
}