:root {
  --color-primary: #7801a7;
  --color-secondary: #c800e9;
  --color-tertiary: #f860f0;
  --color-dark-bg: #110e24;
  --color-light-bg: #ffffff;
  --color-dark-text: #ffffff;
  --color-light-text: #1a1a1a;
  --shadow-soft: 0 20px 40px rgba(17, 14, 36, 0.35);
  --shadow-card: 0 15px 25px rgba(17, 14, 36, 0.25);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --max-width: 1200px;
}

:root[data-theme="light"] {
  --body-bg: var(--color-light-bg);
  --text-color: var(--color-light-text);
  --surface: #f5f3fc;
  --surface-alt: #ffffff;
  --border-color: rgba(17, 14, 36, 0.08);
  --color-muted: rgba(26, 26, 26, 0.6);
  --header-bg: rgba(255, 255, 255, 0.95);
  --header-border: rgba(17, 14, 36, 0.08);
  --footer-bg: #f5f3fc;
  --footer-text: rgba(26, 26, 26, 0.85);
  --glass-bg: rgba(17, 14, 36, 0.03);
  --glass-border: rgba(17, 14, 36, 0.08);
}

:root,
:root[data-theme="dark"] {
  --body-bg: var(--color-dark-bg);
  --text-color: var(--color-dark-text);
  --surface: #1c1633;
  --surface-alt: #1e1a37;
  --border-color: rgba(255, 255, 255, 0.08);
  --color-muted: rgba(255, 255, 255, 0.65);
  --header-bg: rgba(17, 14, 36, 0.9);
  --header-border: rgba(255, 255, 255, 0.08);
  --footer-bg: #090712;
  --footer-text: rgba(255, 255, 255, 0.85);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Quicksand", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--body-bg);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-tertiary);
  outline-offset: 3px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1.25rem, 4vw, 3rem);
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--header-border);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: url("../assets/images/icon.png") center/cover no-repeat;
  box-shadow: inset -4px -6px 12px rgba(0, 0, 0, 0.25);
}

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  display: block;
}

.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.primary-nav a {
  color: var(--text-color);
  opacity: 0.8;
  font-weight: 600;
}

.nav-toggle {
  display: none;
}

.header-cta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  border: none;
  border-radius: var(--radius-md);
  padding: 0.85rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: linear-gradient(120deg, var(--color-primary), var(--color-tertiary));
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn.secondary,
.btn.ghost {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
}

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

.theme-toggle {
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  color: var(--text-color);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.theme-toggle img {
  width: 22px;
  height: 22px;
  fill: currentColor;
  opacity: 0.4;
  transition: opacity 0.2s ease;
}

:root[data-theme="light"] .theme-toggle .icon-sun {
  opacity: 1;
}

:root[data-theme="light"] .theme-toggle .icon-moon {
  opacity: 0.4;
}

:root:not([data-theme="light"]) .theme-toggle .icon-moon {
  opacity: 1;
}

:root:not([data-theme="light"]) .theme-toggle .icon-sun {
  opacity: 0.4;
}

main {
  padding: 0 clamp(1.5rem, 4vw, 6rem) 4rem;
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  gap: 3rem;
  padding-top: 4rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(200, 0, 233, 0.25), transparent 45%),
              radial-gradient(circle at 80% 0%, rgba(120, 1, 167, 0.35), transparent 50%);
  z-index: -1;
}

.hero-content .eyebrow,
.section-heading .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-tertiary);
  font-size: 0.85rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.1rem;
  max-width: 520px;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0 1rem;
}

.hero-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--color-muted);
}

.hero-media {
  display: flex;
  justify-content: center;
}

.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 32px;
  padding: 2rem;
  box-shadow: var(--shadow-soft);
}

.glass-card img {
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.4));
}

.section-heading {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  padding: 1.75rem;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.feature-card ul {
  padding-left: 1.1rem;
  color: var(--color-muted);
}

.icon-circle {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
  font-size: 1.5rem;
}
.icon-circle img {
  width: 28px;
  height: 28px;
}

.badge {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(120, 1, 167, 0.2);
}

.badge.warning {
  background: rgba(248, 96, 240, 0.15);
  color: var(--color-tertiary);
}

.timeline .steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  counter-reset: steps;
  padding: 0;
}

.timeline .steps li {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

.timeline .steps span {
  display: inline-block;
  font-weight: 700;
  color: var(--color-tertiary);
  margin-bottom: 0.5rem;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.benefits-grid article {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

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

.screens-grid figure {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  text-align: center;
}

.screens-grid figcaption {
  margin-top: 0.75rem;
  color: var(--color-muted);
}

.testimonials .testimonial-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.testimonial-slider article {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--border-color);
}

.stars {
  color: #ffcf4b;
  font-size: 1.2rem;
  letter-spacing: 0.2em;
}

.download {
  background: linear-gradient(120deg, rgba(120, 1, 167, 0.65), rgba(200, 0, 233, 0.55));
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 4rem);
  color: #fff;
}

.download .section-heading,
.download .section-heading .eyebrow,
.download .section-heading p {
  color: #fff;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}

.store-badge {
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 0.85rem 1.5rem;
  color: #fff;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.store-badge img {
  width: 36px;
  height: 36px;
}

.store-badge-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.store-badge-text span {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
}

.store-badge-text strong {
  font-size: 1.1rem;
  color: #fff;
}

.qr-card {
  width: 140px;
  height: 180px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.9);
  color: #1a1a1a;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

.qr-placeholder {
  width: 90px;
  height: 90px;
  border-radius: var(--radius-sm);
  border: 2px dashed #999;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.site-footer {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding: 3rem clamp(1.5rem, 4vw, 4rem);
  background: var(--footer-bg);
  color: var(--footer-text);
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer a {
  color: inherit;
}

.site-footer.minimal {
  grid-template-columns: 1fr;
  text-align: center;
}

.subpage .internal-hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 5vw, 3rem) 0;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 1rem;
  color: var(--color-tertiary);
  font-weight: 600;
}

.subpage .internal-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 6vw, 4rem) 4rem;
}

.contact-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

#contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

input,
select,
textarea {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  background: var(--surface);
  color: var(--text-color);
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-feedback {
  min-height: 1.5rem;
}

.faq-list details {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border-color);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
}

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

@media (max-width: 768px) {
  .site-header {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .primary-nav ul {
    flex-direction: column;
    background: var(--header-bg);
    border: 1px solid var(--border-color);
    position: absolute;
    top: 70px;
    right: 1.5rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    display: none;
    box-shadow: var(--shadow-card);
  }

  .primary-nav ul.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-color);
    padding: 0.5rem 1rem;
  }
}

@media print {
  .site-header,
  .site-footer,
  .download,
  .hero-media,
  .cta-group,
  .nav-toggle,
  .theme-toggle {
    display: none !important;
  }
}