:root {
  --bg-a: #0a0f15;
  --bg-b: #14213a;
  --bg-c: #0d1117;
  --surface: rgba(13, 17, 23, 0.62);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --line: rgba(215, 242, 255, 0.12);
  --line-strong: rgba(215, 242, 255, 0.2);
  --text: #f7fbff;
  --muted: rgba(234, 245, 255, 0.74);
  --soft: rgba(205, 232, 255, 0.58);
  --badge-bg: rgba(255, 255, 255, 0.06);
  --badge-text: rgba(255, 255, 255, 0.82);
  --secondary-hover: rgba(255, 255, 255, 0.12);
  --sky: #8fe8ff;
  --cyan: #0ea5e9;
  --aqua: #5ac8fa;
  --glow: #1e90ff;
  --blue: #2563eb;
  --deep: #003dcc;
  --night: #1e3a5f;
  --shadow: 0 24px 64px rgba(0, 12, 28, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

:root[data-theme="light"] {
  --bg-a: #f7fbff;
  --bg-b: #eaf5ff;
  --bg-c: #cde8ff;
  --surface: rgba(255, 255, 255, 0.64);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --line: rgba(20, 33, 58, 0.12);
  --line-strong: rgba(20, 33, 58, 0.18);
  --text: #0a0f15;
  --muted: rgba(20, 33, 58, 0.76);
  --soft: rgba(20, 33, 58, 0.56);
  --badge-bg: rgba(255, 255, 255, 0.62);
  --badge-text: rgba(20, 33, 58, 0.84);
  --secondary-hover: rgba(255, 255, 255, 0.88);
  --sky: #54c8ff;
  --cyan: #3ebaff;
  --aqua: #99d8ff;
  --glow: #1e90ff;
  --blue: #005bff;
  --deep: #003dcc;
  --night: #14213a;
  --shadow: 0 24px 64px rgba(20, 33, 58, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.64);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg-b);
  scroll-behavior: smooth;
}

body {
  min-height: 100%;
  margin: 0;
  background: linear-gradient(135deg, var(--bg-a), var(--bg-b), var(--bg-c));
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  letter-spacing: 0;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3,
.brand-lockup {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 10;
  background: #fff;
  color: #111827;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
}

.theme-toggle {
  position: fixed;
  right: 22px;
  top: 22px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  padding: 5px;
  box-shadow: var(--shadow);
  cursor: pointer;
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
}

.theme-toggle-track {
  position: relative;
  width: 52px;
  height: 28px;
  display: block;
  border-radius: 999px;
  background: rgba(14, 165, 233, 0.18);
}

.theme-toggle-thumb {
  position: absolute;
  left: 4px;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffffff, var(--aqua));
  box-shadow: 0 6px 14px rgba(0, 12, 28, 0.22);
  transition: transform 180ms ease, background 180ms ease;
}

:root[data-theme="dark"] .theme-toggle-thumb {
  transform: translateX(24px);
  background: linear-gradient(135deg, var(--aqua), var(--blue));
}

.hero-section {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 42px 0 66px;
  overflow: hidden;
}

.hero-shell {
  width: min(92vw, 1500px);
  margin: 0 auto;
  text-align: center;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 22px;
  font-size: 3.15rem;
  font-weight: 850;
  letter-spacing: 0;
}

.brand-lockup img {
  width: 86px;
  height: 86px;
  border-radius: 20px;
  filter: drop-shadow(0 22px 30px rgba(0, 0, 0, 0.3));
}

h1 {
  width: min(980px, 100%);
  margin: 0 auto 18px;
  font-size: 4.35rem;
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: 0;
}

.text-gradient {
  background: linear-gradient(90deg, var(--sky), var(--aqua), var(--glow), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lede {
  width: min(850px, 100%);
  margin: 0 auto 12px;
  color: var(--muted);
  font-size: 1.24rem;
  font-weight: 300;
}

.hero-note {
  width: min(720px, 100%);
  margin: 0 auto 28px;
  color: var(--soft);
  font-size: 1rem;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.button {
  min-height: 56px;
  min-width: 210px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 0 22px;
  font-size: 1.03rem;
  font-weight: 820;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  fill: currentColor;
}

.button-icon-line {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue), var(--deep));
  color: #fff;
  box-shadow: 0 12px 34px rgba(30, 144, 255, 0.3);
}

.button-secondary {
  background: var(--surface);
  border-color: var(--line);
  color: var(--text);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--secondary-hover);
}

.app-preview {
  width: min(100%, 980px);
  margin: 28px auto 0;
}

.eyebrow {
  display: block;
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.section-heading h2,
.download-card h2 {
  margin-bottom: 0;
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: 0;
}

.screenshot-stage {
  position: relative;
  display: flex;
  justify-content: center;
}

.app-shot {
  display: block;
  width: min(520px, 70vw);
  height: auto;
  border-radius: 28px;
  filter: drop-shadow(0 34px 58px rgba(0, 0, 0, 0.42));
}

.app-shot-dark {
  position: relative;
  margin: 0 auto;
}

.app-shot-light {
  display: none;
}

:root[data-theme="light"] .app-shot-light {
  display: block;
  filter: drop-shadow(0 34px 58px rgba(20, 33, 58, 0.2));
}

:root[data-theme="light"] .app-shot-dark {
  display: none;
}

.theme-icon-light {
  display: none;
}

.theme-icon-dark {
  display: block;
}

:root[data-theme="light"] .theme-icon-light {
  display: block;
}

:root[data-theme="light"] .theme-icon-dark {
  display: none;
}

.trust-strip {
  width: min(100%, 980px);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 22px auto 0;
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--badge-bg);
  padding: 0 14px;
  color: var(--badge-text);
  font-size: 0.82rem;
  font-weight: 780;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.content-section {
  padding: 86px 0 40px;
}

.section-shell,
.download-section,
.footer {
  width: min(92vw, 1180px);
  margin: 0 auto;
}

.section-heading {
  margin-bottom: 28px;
  text-align: center;
}

.section-heading h2 {
  width: min(760px, 100%);
  margin: 0 auto 14px;
  font-size: 3rem;
}

.section-heading p {
  width: min(680px, 100%);
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.06rem;
}

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

.glass-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
}

.feature-grid .glass-panel {
  min-height: 252px;
  border-radius: 24px;
  padding: 28px;
}

.card-glow-sky {
  background: linear-gradient(135deg, rgba(90, 200, 250, 0.18), var(--surface) 44%, var(--surface));
}

.card-glow-aurora {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.18), rgba(37, 99, 235, 0.13) 34%, var(--surface) 62%);
}

.card-glow-deep {
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.26), rgba(0, 61, 204, 0.13) 42%, var(--surface));
}

.card-glow-white {
  background: linear-gradient(135deg, rgba(215, 242, 255, 0.1), var(--surface) 48%, var(--surface));
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 42px;
  border: 1px solid rgba(143, 232, 255, 0.54);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(143, 232, 255, 0.24), rgba(14, 165, 233, 0.13));
  color: #8fe8ff;
  box-shadow: 0 12px 30px rgba(14, 165, 233, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.feature-grid article:nth-child(2) .feature-icon {
  border-color: rgba(30, 144, 255, 0.56);
  background: linear-gradient(135deg, rgba(30, 144, 255, 0.27), rgba(37, 99, 235, 0.17));
  color: #1e90ff;
  box-shadow: 0 12px 30px rgba(30, 144, 255, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.feature-grid article:nth-child(3) .feature-icon {
  border-color: rgba(124, 77, 255, 0.52);
  background: linear-gradient(135deg, rgba(124, 77, 255, 0.25), rgba(0, 61, 204, 0.16));
  color: #7c4dff;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

:root[data-theme="light"] .feature-icon {
  border-color: rgba(30, 144, 255, 0.28);
  background: linear-gradient(135deg, rgba(84, 200, 255, 0.22), rgba(205, 232, 255, 0.72));
  color: #0a84ff;
  box-shadow: 0 12px 28px rgba(30, 144, 255, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.88);
}

:root[data-theme="light"] .feature-grid article:nth-child(2) .feature-icon {
  border-color: rgba(0, 91, 255, 0.25);
  background: linear-gradient(135deg, rgba(30, 144, 255, 0.18), rgba(234, 245, 255, 0.78));
  color: #005bff;
}

:root[data-theme="light"] .feature-grid article:nth-child(3) .feature-icon {
  border-color: rgba(106, 91, 255, 0.24);
  background: linear-gradient(135deg, rgba(106, 91, 255, 0.17), rgba(234, 245, 255, 0.78));
  color: #6a5bff;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.15;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 1px 4px rgba(0, 18, 40, 0.34));
}

.feature-grid h3 {
  margin-bottom: 10px;
  font-size: 1.24rem;
}

.feature-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.comparison-panel {
  margin-top: 18px;
  border-radius: 24px;
  overflow: hidden;
  padding: 32px;
}

.comparison-inner {
  position: relative;
  z-index: 1;
}

.comparison-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border: 1px solid rgba(90, 200, 250, 0.32);
  border-radius: 999px;
  background: rgba(90, 200, 250, 0.14);
  box-shadow: 0 12px 28px rgba(14, 165, 233, 0.18);
}

.comparison-icon img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.comparison-panel h3 {
  max-width: 760px;
  margin-bottom: 12px;
  color: var(--text);
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: 0;
}

.comparison-panel p {
  max-width: 880px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 0.96rem;
}

.comparison-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
  text-align: left;
}

.comparison-card {
  min-width: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.045);
  padding: 24px;
}

:root[data-theme="light"] .comparison-card {
  background: rgba(255, 255, 255, 0.48);
}

.comparison-card-primary {
  border-color: rgba(90, 200, 250, 0.34);
  background: rgba(14, 165, 233, 0.08);
}

:root[data-theme="light"] .comparison-card-primary {
  background: rgba(205, 232, 255, 0.54);
}

.comparison-card-muted {
  opacity: 0.88;
}

.comparison-card-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.comparison-card-heading img {
  width: 26px;
  height: 26px;
  border-radius: 7px;
}

.comparison-card-heading h4 {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.2;
}

.plist-file-icon {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--aqua);
}

.plist-file-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.comparison-points {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.82rem;
  list-style: none;
}

.comparison-points li {
  min-height: 48px;
  display: grid;
  grid-template-columns: 18px minmax(74px, 0.34fr) minmax(0, 1fr);
  align-items: flex-start;
  gap: 9px;
  padding: 10px 0;
  border-top: 1px solid rgba(151, 174, 199, 0.12);
}

.comparison-points li:first-child {
  border-top: 0;
  padding-top: 0;
}

.comparison-points strong {
  color: var(--text);
  line-height: 1.45;
}

.point-good,
.point-warn {
  flex: 0 0 auto;
  font-weight: 900;
  line-height: 1.5;
}

.point-good {
  color: var(--cyan);
}

.point-warn {
  color: #ff6b6b;
}

.download-section {
  width: min(100% - 32px, 920px);
  min-height: 82svh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  padding: 80px 0 36px;
}

.download-card {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 40px;
  padding: clamp(38px, 7vw, 64px);
  text-align: center;
}

.download-glow {
  position: absolute;
  top: -170px;
  left: 50%;
  width: 500px;
  height: 300px;
  border-radius: 999px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(90, 200, 250, 0.3), transparent 70%);
  pointer-events: none;
}

.download-card-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.download-app-icon {
  width: 96px;
  height: 96px;
  margin-bottom: 30px;
  border-radius: 22px;
  box-shadow: 0 16px 38px rgba(30, 144, 255, 0.26);
}

.download-card h2 {
  max-width: 720px;
  font-size: clamp(2.35rem, 5vw, 4.1rem);
  line-height: 1.04;
}

.download-card p {
  max-width: 620px;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.download-card .button {
  margin-top: 34px;
}

.download-card .download-meta {
  margin-top: 18px;
  color: var(--soft);
  font-size: 0.92rem;
}

.footer {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--soft);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  h1 {
    font-size: 3.3rem;
  }

  .feature-grid,
  .comparison-options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero-section {
    align-items: flex-start;
    min-height: auto;
    padding: 42px 0 54px;
  }

  .hero-shell,
  .section-shell,
  .download-section,
  .footer {
    width: min(100% - 28px, 1180px);
  }

  .brand-lockup {
    gap: 12px;
    font-size: 2.2rem;
  }

  .brand-lockup img {
    width: 62px;
    height: 62px;
    border-radius: 15px;
  }

  h1 {
    font-size: 2.62rem;
    line-height: 1.08;
  }

  .hero-lede {
    font-size: 1.05rem;
  }

  .button {
    width: 100%;
    min-width: 0;
  }

  .app-preview {
    margin-top: 26px;
  }

  .app-shot {
    width: min(92vw, 318px);
    border-radius: 20px;
  }

  .app-shot-light {
    display: none;
  }

  :root[data-theme="light"] .app-shot-light {
    display: block;
  }

  .section-heading h2 {
    font-size: 2rem;
  }

  .feature-grid .glass-panel,
  .comparison-panel,
  .comparison-card,
  .download-card {
    border-radius: 18px;
    padding: 22px;
  }

  .comparison-panel h3 {
    font-size: 1.7rem;
  }

  .feature-icon {
    margin-bottom: 28px;
  }

  .footer {
    min-height: 94px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }
}

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

  .button {
    transition: none;
  }
}