:root {
  color-scheme: light dark;

  /* Align with app seedColor: Colors.deepPurple */
  --brand: #673ab7;
  --brand-contrast: #ffffff;
  --accent: #22c55e;
  --danger: #ef4444;

  --shadow: 0 16px 40px rgba(17, 12, 32, 0.10);

  --container: 1100px;

  --bg: #f6f5fb;
  --surface: #ffffff;
  --text: #1c1b1f;
  --muted: #5f5c6b;
  --border: rgba(28, 27, 31, 0.12);

  --hero: radial-gradient(1000px 600px at 20% 20%, rgba(103, 58, 183, 0.22), transparent 55%),
    radial-gradient(900px 500px at 80% 30%, rgba(34, 197, 94, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.00), rgba(255, 255, 255, 0.25));

  --radius: 14px;
  --space: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121115;
    --surface: #1a1820;
    --text: #eceaf3;
    --muted: rgba(236, 234, 243, 0.72);
    --border: rgba(236, 234, 243, 0.14);
    --shadow: 0 16px 50px rgba(0, 0, 0, 0.35);

    --hero: radial-gradient(1000px 600px at 20% 20%, rgba(103, 58, 183, 0.30), transparent 55%),
      radial-gradient(900px 500px at 80% 30%, rgba(34, 197, 94, 0.18), transparent 55%),
      linear-gradient(180deg, rgba(18, 17, 21, 0.00), rgba(18, 17, 21, 0.45));
  }
}

* {
  box-sizing: border-box;
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: calc(var(--space) * 2) var(--space);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 1.5);
  box-shadow: var(--shadow);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space);
  margin-bottom: var(--space);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand h1 {
  font-size: 22px;
  line-height: 1.2;
  margin: 0;
}

.brand p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(103, 58, 183, 0.12);
  color: var(--brand);
  border: 1px solid rgba(103, 58, 183, 0.22);
  font-size: 13px;
  white-space: nowrap;
}

/* Landing page layout */
.page {
  position: relative;
  min-height: 100vh;
  background: var(--hero);
}

/* Robotic / circuit background overlay */
.page::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'><defs><linearGradient id='g' x1='0' y1='0' x2='1' y2='1'><stop offset='0' stop-color='%23673ab7' stop-opacity='0.55'/><stop offset='1' stop-color='%2322c55e' stop-opacity='0.28'/></linearGradient></defs><rect width='240' height='240' fill='none'/><path d='M24 40h64m16 0h40m16 0h56M24 120h32m16 0h72m16 0h56M24 200h72m16 0h40m16 0h56' stroke='url(%23g)' stroke-width='2' stroke-linecap='round' opacity='0.55'/><path d='M40 24v64m0 16v40m0 16v56M120 24v32m0 16v72m0 16v56M200 24v72m0 16v40m0 16v56' stroke='url(%23g)' stroke-width='2' stroke-linecap='round' opacity='0.45'/><g fill='none' stroke='%23673ab7' stroke-width='2' opacity='0.28'><circle cx='40' cy='40' r='4'/><circle cx='120' cy='40' r='4'/><circle cx='200' cy='40' r='4'/><circle cx='40' cy='120' r='4'/><circle cx='120' cy='120' r='4'/><circle cx='200' cy='120' r='4'/><circle cx='40' cy='200' r='4'/><circle cx='120' cy='200' r='4'/><circle cx='200' cy='200' r='4'/></g><g fill='none' stroke='%2322c55e' stroke-width='2' opacity='0.22'><path d='M56 56h24v24h-24z'/><path d='M160 160h24v24h-24z'/><path d='M160 56h24v24h-24z'/><path d='M56 160h24v24h-24z'/></g></svg>");
  background-size: 420px 420px;
  background-position: center;
  mix-blend-mode: multiply;
}

@media (prefers-color-scheme: dark) {
  .page::before {
    opacity: 0.18;
    mix-blend-mode: screen;
  }
}

/* Subtle scanline glow (robotic feel) */
.page::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    /* scanner sweep */
    linear-gradient(
      115deg,
      rgba(103, 58, 183, 0.00) 0%,
      rgba(103, 58, 183, 0.00) 42%,
      rgba(34, 197, 94, 0.16) 48%,
      rgba(34, 197, 94, 0.00) 56%,
      rgba(34, 197, 94, 0.00) 100%
    ),
    /* scanlines */
    repeating-linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.03) 0px,
      rgba(255, 255, 255, 0.03) 1px,
      rgba(0, 0, 0, 0.00) 6px,
      rgba(0, 0, 0, 0.00) 12px
    );
  background-size: 220% 220%, auto;
  background-position: -140% -140%, 0 0;
  opacity: 0.14;
  mix-blend-mode: overlay;
  animation: scannerSweep 7.5s linear infinite;
}

@keyframes scannerSweep {
  0% {
    background-position: -140% -140%, 0 0;
  }
  100% {
    background-position: 140% 140%, 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page::after {
    animation: none;
    background-position: 0 0, 0 0;
  }
}

.bg-orb {
  position: absolute;
  inset: auto;
  width: 520px;
  height: 520px;
  border-radius: 999px;
  filter: blur(50px);
  opacity: 0.55;
  pointer-events: none;
}

.bg-orb-1 {
  top: -220px;
  left: -180px;
  background: radial-gradient(circle at 30% 30%, rgba(103, 58, 183, 0.55), transparent 60%);
}

.bg-orb-2 {
  top: -180px;
  right: -220px;
  background: radial-gradient(circle at 30% 30%, rgba(34, 197, 94, 0.45), transparent 62%);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav .container {
  padding-top: 14px;
  padding-bottom: 14px;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.logo:hover {
  text-decoration: none;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(103, 58, 183, 0.14);
  border: 1px solid rgba(103, 58, 183, 0.25);
  color: var(--brand);
}

.logo-text {
  font-weight: 800;
  letter-spacing: 0.2px;
}

.logo-sub {
  font-size: 13px;
  color: var(--muted);
  border-left: 1px solid var(--border);
  padding-left: 10px;
}

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

.hero {
  padding: 18px 0 10px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
  align-items: start;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  color: var(--muted);
  font-weight: 650;
  font-size: 13px;
}

.pill .dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.16);
}

.headline {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.6px;
  margin: 14px 0 10px;
}

.subhead {
  margin: 0;
  font-size: 16px;
  color: var(--muted);
  max-width: 62ch;
}

.actions-hero {
  margin-top: 16px;
}

.btn-ghost {
  background: color-mix(in srgb, var(--surface) 70%, transparent);
}

.kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.kpi {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
}

.kpi-value {
  font-weight: 900;
  font-size: 18px;
}

.kpi-label {
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
}

.hero-card {
  padding: 18px;
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.hero-card-title {
  margin: 10px 0 6px;
  font-size: 18px;
}

.qr-hero img {
  width: 200px;
}

.section {
  padding: 22px 0;
}

.section-alt {
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  margin-bottom: 14px;
}

.section-title-lg {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.2px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature h3 {
  margin: 10px 0 6px;
}

.feature p {
  margin: 0;
}

.icon-badge {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(103, 58, 183, 0.14);
  border: 1px solid rgba(103, 58, 183, 0.25);
  color: var(--brand);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.step {
  position: relative;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.14);
  border: 1px solid rgba(34, 197, 94, 0.28);
  color: color-mix(in srgb, var(--accent) 90%, var(--text));
  font-weight: 900;
}

.cta {
  padding: 26px 0 40px;
}

.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: linear-gradient(135deg, rgba(103, 58, 183, 0.18), rgba(34, 197, 94, 0.10));
  border: 1px solid color-mix(in srgb, var(--border) 70%, rgba(103, 58, 183, 0.22));
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0 10px;
}

.footer-links {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
}

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

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: var(--space) 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
  border-color: rgba(103, 58, 183, 0.35);
}

.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--brand-contrast);
}

.btn-primary:hover {
  filter: brightness(0.98);
}

.section-title {
  margin: calc(var(--space) * 1.25) 0 10px;
  font-size: 16px;
}

.muted {
  color: var(--muted);
}

.list {
  margin: 0;
  padding-left: 18px;
}

.footer {
  margin-top: var(--space);
  font-size: 13px;
  color: var(--muted);
}

.qr {
  margin-top: var(--space);
  display: flex;
  align-items: center;
  gap: var(--space);
  flex-wrap: wrap;
}

.qr img {
  width: 220px;
  max-width: min(220px, 70vw);
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  padding: 10px;
}

.qr .qr-meta {
  min-width: 220px;
  flex: 1;
}

.qr .qr-meta .label {
  font-weight: 700;
  margin: 0 0 6px;
}

.qr .qr-meta .url {
  margin: 0;
  word-break: break-word;
}

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .kpis {
    grid-template-columns: 1fr;
  }

  .grid-3,
  .steps {
    grid-template-columns: 1fr;
  }

  .cta-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    padding: calc(var(--space) * 1.5) var(--space);
  }

  .nav .container {
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .nav-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .logo {
    justify-content: center;
  }

  .logo-sub {
    display: none;
  }

  .nav-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .nav-actions .btn {
    flex: 1;
    min-width: 160px;
  }

  .actions {
    width: 100%;
  }

  .actions .btn {
    width: 100%;
  }

  .qr {
    flex-direction: column;
    align-items: stretch;
  }

  .qr img {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .qr .qr-meta {
    min-width: 0;
  }

  .headline {
    letter-spacing: -0.3px;
  }
}

@media (max-width: 360px) {
  .logo-text {
    font-size: 14px;
  }

  .btn {
    padding: 11px 12px;
  }

  .badge {
    font-size: 12px;
  }
}

@media (max-width: 320px) {
  :root {
    --space: 14px;
  }

  .nav-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-actions .btn {
    width: 100%;
    min-width: 0;
  }

  .hero {
    padding: 12px 0 6px;
  }

  .pill {
    max-width: 100%;
    white-space: normal;
  }

  .headline {
    font-size: 28px;
    line-height: 1.12;
    letter-spacing: -0.2px;
  }

  .subhead {
    font-size: 15px;
  }

  .card {
    padding: calc(var(--space) * 1.25);
  }

  .hero-card {
    padding: 14px;
  }

  .hero-card-header {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .qr img {
    max-width: 280px;
  }
}