/* BarcodeAssist marketing landing page */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fb;
  --color-ink: #0f172a;
  --color-ink-soft: #51607a;
  --color-ink-faint: #8794ab;
  --color-primary: #4338ca;
  --color-primary-dark: #312a8f;
  --color-primary-soft: #eef0fd;
  --color-accent: #0891b2;
  --color-accent-soft: #e3f6fa;
  --color-border: #e6e9f2;
  --hero-bg-start: #070b1a;
  --hero-bg-end: #121a35;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-md: 0 12px 32px -16px rgba(15, 23, 42, 0.25);
  --shadow-lg: 0 24px 60px -20px rgba(15, 23, 42, 0.35);
  --container-max: 1200px;
  --font-sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.ba-landing {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.ba-container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

/* ---------- Nav ---------- */

.ba-nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding-block: 0.9rem;
  background: rgba(7, 11, 26, 0.55);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.ba-nav.is-scrolled {
  background: rgba(7, 11, 26, 0.92);
  box-shadow: 0 8px 24px -12px rgba(0, 0, 0, 0.5);
}

.ba-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: none;
  padding-inline: clamp(1.25rem, 4vw, 3.5rem);
}

.ba-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  color: #fff;
  text-decoration: none;
}

.ba-brand__mark {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.ba-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.ba-nav__links a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.ba-nav__links a:hover {
  color: #fff;
}

.ba-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff !important;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  box-shadow: 0 8px 20px -8px rgba(67, 56, 202, 0.6);
  white-space: nowrap;
}

.ba-nav__toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.55rem;
  cursor: pointer;
}

.ba-nav__toggle span,
.ba-nav__toggle span::before,
.ba-nav__toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.ba-nav__toggle span::before,
.ba-nav__toggle span::after {
  content: "";
  position: absolute;
}

.ba-nav__toggle span::before {
  top: -6px;
}

.ba-nav__toggle span::after {
  top: 6px;
}

/* ---------- Hero ---------- */

.ba-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: radial-gradient(120% 140% at 15% 10%, var(--hero-bg-end), var(--hero-bg-start) 70%);
  isolation: isolate;
}

.ba-hero__scenes {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.ba-hero__scene {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.6s ease;
}

.ba-hero__scenes--instant .ba-hero__scene {
  transition: none;
}

.ba-hero__scene.is-active {
  opacity: 0.92;
}

.ba-hero__scene svg,
.ba-hero__scene img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: grayscale(0.1) brightness(0.75) contrast(1.15) saturate(1.05);
}

.ba-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(70% 55% at 25% 85%, rgba(7, 11, 26, 0.05), rgba(7, 11, 26, 0.28) 80%);
  z-index: 1;
  pointer-events: none;
}

.ba-hero__inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(6rem, 14vh, 9rem) clamp(3rem, 8vh, 5rem);
}

.ba-hero__panel {
  max-width: 640px;
  background: rgba(7, 11, 26, 0.55);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  box-shadow: var(--shadow-lg);
}

.ba-hero h1 {
  color: #fff;
  font-size: clamp(2.1rem, 4.6vw, 3.6rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
}

.ba-hero h1 span {
  background: linear-gradient(120deg, #818cf8, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ba-hero p.lead {
  color: rgba(226, 232, 240, 0.82);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  max-width: 46ch;
  margin: 0 0 2rem;
}

.ba-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.ba-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

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

.ba-btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  box-shadow: 0 14px 30px -12px rgba(67, 56, 202, 0.65);
}

.ba-btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}

.ba-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

.ba-btn--block {
  width: 100%;
  justify-content: center;
}

/* ---------- Sections shared ---------- */

section {
  padding-block: clamp(3.5rem, 8vh, 6.5rem);
}

.ba-section-head {
  max-width: 640px;
  margin: 0 auto 3rem;
  text-align: center;
}

.ba-kicker {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.ba-section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -0.01em;
  margin: 0 0 0.85rem;
  color: var(--color-ink);
}

.ba-section-head p {
  color: var(--color-ink-soft);
  font-size: 1.02rem;
  margin: 0;
}

/* ---------- Features ---------- */

.ba-features {
  background: var(--color-bg);
}

.ba-features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.ba-feature-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  background: var(--color-bg);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.ba-feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: transparent;
}

.ba-feature-card__icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  margin-bottom: 1.1rem;
}

.ba-feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.ba-feature-card h3 {
  font-size: 1.08rem;
  margin: 0 0 0.5rem;
  color: var(--color-ink);
}

.ba-feature-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-ink-soft);
}

/* ---------- How it works (tabs) ---------- */

.ba-how {
  background: var(--color-bg-alt);
}

.ba-tabs {
  max-width: 1000px;
  margin-inline: auto;
}

.ba-tabs__nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.ba-tabs__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--color-border);
  background: #fff;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--color-ink-soft);
  cursor: pointer;
  transition: all 0.18s ease;
}

.ba-tabs__btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.ba-tabs__btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.ba-tabs__btn.is-active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 10px 24px -12px rgba(67, 56, 202, 0.55);
}

.ba-tabs__panel {
  display: none;
  animation: ba-fade-in 0.35s ease;
}

.ba-tabs__panel.is-active {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  box-shadow: var(--shadow-md);
}

@keyframes ba-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.ba-tabs__panel h3 {
  font-size: 1.35rem;
  margin: 0 0 0.6rem;
  color: var(--color-ink);
}

.ba-tabs__panel > div:first-child > p {
  color: var(--color-ink-soft);
  margin: 0 0 1.5rem;
}

.ba-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.ba-steps li {
  position: relative;
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.ba-steps li:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 34px;
  bottom: -16px;
  width: 2px;
  background: linear-gradient(180deg, #dfe3f5, rgba(223, 227, 245, 0));
}

.ba-steps .ba-step-num {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 14px -6px rgba(67, 56, 202, 0.5);
}

.ba-steps strong {
  display: block;
  font-size: 0.95rem;
  color: var(--color-ink);
  margin-bottom: 0.15rem;
}

.ba-steps span {
  font-size: 0.87rem;
  color: var(--color-ink-soft);
}

.ba-tabs__visual {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    radial-gradient(120% 120% at 85% 12%, rgba(8, 145, 178, 0.12), transparent 55%),
    radial-gradient(120% 120% at 8% 92%, rgba(67, 56, 202, 0.12), transparent 55%),
    linear-gradient(160deg, #f7f8fe, #eef4fb);
  padding: clamp(1rem, 2.5vw, 1.75rem);
  overflow: hidden;
}

.ba-tabs__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(67, 56, 202, 0.1) 1px, transparent 1px);
  background-size: 18px 18px;
  pointer-events: none;
}

.ba-tabs__visual-inner {
  position: relative;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ba-tabs__visual-inner svg {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.ba-flow {
  stroke-dasharray: 6 7;
  animation: ba-flow 1.4s linear infinite;
}

@keyframes ba-flow {
  to { stroke-dashoffset: -26; }
}

/* ---------- Integrations ---------- */

.ba-integrations {
  background: var(--color-bg);
}

.ba-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  justify-content: center;
}

.ba-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.6rem 1.15rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-ink);
  background: var(--color-bg-alt);
}

.ba-chip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ---------- CTA banner ---------- */

.ba-cta {
  background: linear-gradient(135deg, var(--hero-bg-start), var(--hero-bg-end));
  border-radius: var(--radius-lg);
  margin-inline: clamp(1.25rem, 4vw, 2.5rem);
  padding: clamp(2.5rem, 6vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ba-cta h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin: 0 0 0.75rem;
}

.ba-cta p {
  color: rgba(226, 232, 240, 0.78);
  margin: 0 auto 2rem;
  max-width: 50ch;
}

.ba-cta__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */

.ba-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding-block: 3rem 2rem;
}

.ba-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2rem;
}

.ba-footer__brand p {
  color: var(--color-ink-soft);
  font-size: 0.88rem;
  max-width: 32ch;
}

.ba-footer h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-faint);
  margin: 0 0 0.9rem;
}

.ba-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.ba-footer a {
  color: var(--color-ink-soft);
  text-decoration: none;
  font-size: 0.9rem;
}

.ba-footer a:hover {
  color: var(--color-primary);
}

.ba-footer__bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.82rem;
  color: var(--color-ink-faint);
}

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .ba-hero__panel {
    max-width: 100%;
  }

  .ba-tabs__panel.is-active {
    grid-template-columns: 1fr;
  }

  .ba-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .ba-nav__menu {
    display: none;
  }

  .ba-nav__toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .ba-nav.is-open .ba-nav__menu {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(7, 11, 26, 0.97);
    padding: 1.5rem clamp(1.25rem, 4vw, 2.5rem) 1.75rem;
  }

  .ba-nav.is-open .ba-nav__links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    width: 100%;
  }

  .ba-footer__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .ba-hero__actions .ba-btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .ba-flow {
    animation: none;
  }
}