:root {
  --bg: #080b12;
  --bg-2: #101521;
  --surface: #ffffff;
  --surface-soft: #f7f8fc;
  --text: #111827;
  --muted: #5f6b7c;
  --light: #ffffff;
  --light-muted: #c9d4e5;
  --primary: #ff8a00;
  --primary-2: #6553ff;
  --success: #23a455;
  --border: rgba(17, 24, 39, 0.12);
  --shadow: 0 24px 70px rgba(5, 9, 18, 0.22);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hind Siliguri", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body[data-lang="en"] {
  font-family: "Inter", "Hind Siliguri", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(255, 138, 0, 0.7);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  transform: translateY(-140%);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  padding: 10px 14px;
  box-shadow: var(--shadow);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 11, 18, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

.site-header[data-elevated="true"] {
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
}

.nav-shell {
  width: min(var(--max), calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--light);
  font-weight: 800;
  font-size: 1.05rem;
}

.brand img {
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--light-muted);
  font-size: 0.98rem;
  font-weight: 600;
}

.nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav-links a:hover {
  color: var(--light);
}

.nav-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.language-toggle {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.lang-btn {
  min-width: 44px;
  min-height: 36px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--light-muted);
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.lang-btn.active {
  background: var(--primary);
  color: #16100a;
}

.nav-download {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--light);
  color: var(--text);
  padding: 0 18px;
  font-weight: 800;
}

.section-panel {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100dvh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  padding: clamp(44px, 6vw, 84px) 0 48px;
  color: var(--light);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 12% 15%, rgba(255, 138, 0, 0.24), transparent 30%),
    radial-gradient(circle at 78% 20%, rgba(101, 83, 255, 0.28), transparent 36%),
    linear-gradient(145deg, #05070d 0%, #0c1220 52%, #101523 100%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 70%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section-copy h2,
.section-heading h2,
.final-cta h2 {
  margin: 0;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.08;
}

.hero h1 {
  max-width: 780px;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
}

.hero-lead {
  max-width: 660px;
  margin: 22px 0 0;
  color: var(--light-muted);
  font-size: clamp(1rem, 2vw, 1.22rem);
}

.hero-actions,
.hero-stats,
.metric-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.hero-actions {
  margin-top: 30px;
}

.btn {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 22px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.primary {
  background: var(--primary);
  color: #181008;
  box-shadow: 0 18px 42px rgba(255, 138, 0, 0.28);
}

.btn.secondary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--light);
}

.hero-stats {
  margin-top: 34px;
}

.hero-stats div,
.metric-row div {
  min-width: 128px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  padding: 12px 14px;
}

.hero-stats strong,
.metric-row strong {
  display: block;
  color: var(--light);
  font-size: 1.45rem;
  line-height: 1;
}

.hero-stats span,
.metric-row span {
  display: block;
  color: var(--light-muted);
  font-size: 0.9rem;
  margin-top: 6px;
}

.hero-visual {
  position: relative;
  min-height: 600px;
  display: grid;
  place-items: center;
}

.phone-frame {
  position: relative;
  width: min(100%, 315px);
  overflow: hidden;
  border: 10px solid #101827;
  border-radius: 34px;
  background: #101827;
  box-shadow: var(--shadow);
}

.phone-frame::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  z-index: 2;
  width: 80px;
  height: 20px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.68);
  transform: translateX(-50%);
}

.phone-frame img {
  width: 100%;
  aspect-ratio: 1080 / 2400;
  object-fit: cover;
  border-radius: 24px;
}

.hero-phone {
  animation: phoneFloat 5s ease-in-out infinite;
}

.notice-strip {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto 28px;
  display: flex;
  gap: 16px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.09);
  color: var(--light);
  padding: 14px 18px;
}

.notice-strip span {
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--primary);
  color: #181008;
  padding: 6px 10px;
  font-weight: 800;
}

.notice-strip p {
  margin: 0;
  color: var(--light-muted);
}

.split-section,
.steps,
.trust,
.faq-section,
.refer-section,
.final-cta {
  width: 100%;
  max-width: none;
  margin: 0;
  padding-top: clamp(64px, 8vw, 104px);
  padding-bottom: clamp(64px, 8vw, 104px);
  padding-left: max(20px, calc((100vw - var(--max)) / 2));
  padding-right: max(20px, calc((100vw - var(--max)) / 2));
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  align-items: center;
  gap: clamp(32px, 6vw, 88px);
  border-top: 1px solid rgba(17, 24, 39, 0.08);
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  background: linear-gradient(180deg, #f7f8fc 0%, #ffffff 100%);
}

.split-section.reverse {
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
}

.section-copy,
.section-heading {
  color: var(--text);
}

.section-copy h2,
.section-heading h2,
.final-cta h2 {
  font-size: clamp(2rem, 4.5vw, 3.7rem);
}

.section-copy p:not(.eyebrow),
.final-cta p:not(.eyebrow) {
  max-width: 620px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.screen-stack {
  display: grid;
  justify-items: center;
}

.screen-stack .phone-frame,
.refer-preview .phone-frame {
  width: min(100%, 330px);
  border-color: #ffffff;
  background: #ffffff;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.feature-list span {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 12px 14px;
  color: var(--text);
  font-weight: 700;
  box-shadow: 0 12px 26px rgba(17, 24, 39, 0.06);
}

.steps,
.trust,
.final-cta {
  background: var(--surface);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

.step-grid,
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.step-card,
.trust-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 18px;
}

.step-card span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #111827;
  color: var(--light);
  font-weight: 800;
}

.step-card h3,
.trust-card h3 {
  margin: 16px 0 8px;
  font-size: 1.15rem;
}

.step-card p,
.trust-card p {
  margin: 0;
  color: var(--muted);
}

.metric-row {
  margin-top: 28px;
}

.metric-row div {
  background: #111827;
}

.refer-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  overflow: hidden;
  background: transparent;
}

.refer-section {
  background:
    linear-gradient(135deg, rgba(101, 83, 255, 0.12), rgba(255, 138, 0, 0.09)),
    var(--surface);
}

.refer-card .btn {
  margin-top: 24px;
}

.refer-preview {
  display: grid;
  justify-items: center;
}

.trust-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.faq-section {
  background: var(--surface-soft);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 920px;
  margin: 0 auto;
}

.faq-section .section-heading {
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 14px 32px rgba(17, 24, 39, 0.06);
}

summary {
  min-height: 56px;
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 14px 18px;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
}

.final-cta {
  text-align: center;
}

.final-cta p {
  margin-left: auto;
  margin-right: auto;
}

.final-cta .btn {
  margin-top: 24px;
}

.site-footer {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--light-muted);
  padding: 28px 0 38px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--light);
  font-weight: 800;
}

.footer-brand img {
  border-radius: 8px;
}

.site-footer p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@keyframes phoneFloat {
  0%, 100% {
    transform: translateY(0) rotate(-1deg);
  }
  50% {
    transform: translateY(-14px) rotate(1deg);
  }
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero,
  .split-section,
  .split-section.reverse,
  .refer-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 36px;
  }

  .hero-visual {
    min-height: 500px;
  }

  .step-grid,
  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .nav-shell {
    width: min(100% - 20px, var(--max));
    min-height: 64px;
    gap: 8px;
  }

  .brand span {
    display: none;
  }

  .nav-download {
    padding: 0 12px;
  }

  .hero,
  .split-section,
  .steps,
  .trust,
  .faq-section,
  .refer-section,
  .final-cta {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero h1 {
    font-size: clamp(2.25rem, 13vw, 3.6rem);
  }

  .hero-actions .btn,
  .final-cta .btn,
  .refer-card .btn {
    width: 100%;
  }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .hero-stats div {
    min-width: 0;
    padding: 10px;
  }

  .hero-stats strong {
    font-size: 1.15rem;
  }

  .hero-stats span {
    font-size: 0.78rem;
  }

  .hero-visual {
    min-height: 430px;
  }

  .phone-frame {
    width: min(82vw, 290px);
    border-width: 8px;
  }

  .notice-strip {
    width: min(100% - 20px, var(--max));
    align-items: flex-start;
    flex-direction: column;
  }

  .step-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    width: min(100% - 20px, var(--max));
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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