:root {
  color-scheme: dark;
  --bg: #07101e;
  --bg-deep: #020617;
  --panel: rgba(9, 18, 34, 0.76);
  --panel-strong: rgba(9, 18, 34, 0.92);
  --panel-border: rgba(148, 163, 184, 0.16);
  --text: #f8fafc;
  --muted: #9fb0c7;
  --accent: #2fd2ff;
  --accent-strong: #2a8cff;
  --accent-soft: rgba(47, 210, 255, 0.14);
  --pink-soft: rgba(255, 106, 162, 0.16);
  --shadow: 0 30px 90px rgba(2, 8, 23, 0.45);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(47, 210, 255, 0.16), transparent 24%),
    radial-gradient(circle at top right, rgba(255, 106, 162, 0.12), transparent 20%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 42%, #040b16 100%);
}

a {
  color: inherit;
}

.ambient {
  position: fixed;
  inset: auto;
  width: 36vw;
  height: 36vw;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.35;
  z-index: 0;
}

.ambient--left {
  top: -8vw;
  left: -10vw;
  background: rgba(47, 210, 255, 0.22);
}

.ambient--right {
  top: 10vw;
  right: -12vw;
  background: rgba(255, 106, 162, 0.16);
}

.site-header,
.page,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(18px);
  background: rgba(2, 8, 23, 0.58);
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.site-header__inner,
.page,
.site-footer__inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand__logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
}

.brand__text {
  width: 110px;
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
}

.page {
  padding: 28px 0 64px;
}

.hero,
.feature-card,
.showcase-card,
.guide-card,
.help-item,
.panel,
.privacy-banner {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 420px);
  gap: 28px;
  padding: 34px;
  border-radius: var(--radius-xl);
}

.hero__eyebrow,
.eyebrow,
.guide-step,
.placeholder-title {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero__eyebrow,
.eyebrow {
  background: var(--accent-soft);
  color: var(--accent);
}

.hero h1 {
  margin: 18px 0 18px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.hero h1 span {
  display: block;
  color: #b8c8dd;
}

.hero__lead,
.section-copy,
.feature-card p,
.showcase-copy p,
.guide-card p,
.help-item p,
.notes,
.history__notes,
.history__empty,
.meta,
.privacy-banner p,
.site-footer p {
  color: var(--muted);
}

.hero__lead {
  max-width: 780px;
  font-size: 19px;
  line-height: 1.72;
}

.hero__actions,
.download-actions,
.history__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero__actions {
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  transition: transform 0.2s ease, opacity 0.2s ease, border-color 0.2s ease;
}

.button:hover,
.history__link:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
}

.button--ghost {
  background: rgba(15, 23, 42, 0.44);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.stat-card {
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.stat-card strong,
.feature-card h3,
.showcase-copy h3,
.guide-card h3,
.help-item h3,
.panel h3,
.panel h2 {
  display: block;
  margin-bottom: 8px;
}

.hero__visual {
  display: grid;
  place-items: center;
}

.phone {
  width: min(100%, 360px);
  padding: 14px;
  border-radius: 38px;
  background: linear-gradient(180deg, rgba(255,255,255,0.16), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 35px 80px rgba(0, 0, 0, 0.35);
}

.phone__screen {
  position: relative;
  min-height: 620px;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(47, 210, 255, 0.18), transparent 26%),
    linear-gradient(180deg, #ffffff 0%, #f4f7fb 100%);
  padding: 28px 22px;
  color: #0f172a;
}

.phone__screen--intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
}

.phone__logo {
  width: min(100%, 250px);
  margin: 0 auto 16px;
}

.phone__bubble {
  max-width: 82%;
  padding: 14px 16px;
  border-radius: 22px;
  font-weight: 700;
  line-height: 1.45;
}

.phone__bubble--left {
  align-self: flex-start;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.phone__bubble--right {
  align-self: flex-end;
  background: linear-gradient(135deg, #d6f4ff, #e6efff);
}

.phone__screen--placeholder {
  display: grid;
  place-items: center;
  text-align: center;
  gap: 12px;
  background:
    linear-gradient(135deg, rgba(47, 210, 255, 0.12), rgba(255, 106, 162, 0.1)),
    linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
}

.placeholder-title {
  background: rgba(15, 23, 42, 0.08);
  color: #334155;
}

.phone__screen--placeholder strong {
  font-size: 28px;
}

.phone__screen--placeholder p {
  max-width: 240px;
  margin: 0;
  color: #475569;
  line-height: 1.6;
}

.section {
  margin-top: 28px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 20px;
  margin-bottom: 18px;
}

.section-heading h2 {
  margin: 10px 0 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.04;
  letter-spacing: -0.03em;
}

.section-copy {
  margin: 0;
  align-self: end;
  font-size: 17px;
  line-height: 1.72;
}

.feature-grid,
.guide-grid {
  display: grid;
  gap: 16px;
}

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

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

.feature-card,
.guide-card,
.help-item,
.panel,
.privacy-banner {
  border-radius: var(--radius-lg);
}

.feature-card,
.guide-card,
.help-item {
  padding: 22px;
}

.showcase-grid {
  display: grid;
  gap: 18px;
}

.showcase-card {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
  padding: 24px;
  border-radius: 28px;
}

.showcase-card--reverse {
  grid-template-columns: minmax(0, 1fr) 360px;
}

.showcase-copy {
  align-self: center;
}

.showcase-copy h3 {
  font-size: 30px;
  margin: 0 0 10px;
}

.guide-step {
  background: var(--pink-soft);
  color: #ff8dbd;
}

.help-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.privacy-banner {
  padding: 28px;
}

.download-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 18px;
}

.panel {
  padding: 24px;
}

.panel__heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.panel__heading h3 {
  margin: 10px 0 0;
  font-size: 28px;
}

.history {
  display: grid;
  gap: 12px;
}

.history__item {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.history__top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.history__item h3 {
  margin: 8px 0 0;
  font-size: 20px;
}

.history__link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 800;
}

.site-footer {
  padding: 0 0 42px;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 8px;
}

.site-footer__logo {
  width: 140px;
}

@media (max-width: 1100px) {
  .hero,
  .section-heading,
  .feature-grid,
  .download-layout,
  .showcase-card,
  .showcase-card--reverse {
    grid-template-columns: 1fr;
  }

  .hero__stats,
  .help-list,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
  }
}

@media (max-width: 760px) {
  .site-header__inner,
  .page,
  .site-footer__inner {
    width: min(100%, calc(100% - 20px));
  }

  .site-header {
    position: static;
  }

  .nav {
    display: none;
  }

  .hero,
  .showcase-card,
  .panel,
  .feature-card,
  .guide-card,
  .help-item,
  .privacy-banner {
    padding: 18px;
    border-radius: 22px;
  }

  .hero h1 {
    font-size: clamp(34px, 12vw, 52px);
  }

  .hero__lead,
  .section-copy,
  .showcase-copy p,
  .feature-card p,
  .guide-card p,
  .help-item p,
  .notes {
    font-size: 15px;
  }

  .phone {
    width: min(100%, 320px);
  }

  .phone__screen {
    min-height: 520px;
  }

  .panel__heading,
  .history__top,
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}