:root {
  color-scheme: dark;
  --bg: #05070c;
  --panel: #0b1420;
  --panel-2: #101925;
  --line: #147dce;
  --line-bright: #36d7ff;
  --text: #edf6ff;
  --muted: #9db1c4;
  --steel: #d8e5f4;
  --amber: #ffc46a;
  --green: #2ee69e;
  --danger: #ff6b7a;
  --shadow: 0 0 42px rgba(30, 163, 255, 0.22);
}

html.day-theme {
  color-scheme: light;
  --bg: #f4f7fb;
  --panel: #ffffff;
  --panel-2: #eef4fb;
  --line: #2b7fc4;
  --line-bright: #0876bd;
  --text: #10223a;
  --muted: #4f6682;
  --steel: #071a35;
  --amber: #c98716;
  --green: #087f5b;
  --danger: #b42335;
  --shadow: 0 18px 58px rgba(24, 70, 120, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 15% 10%, rgba(27, 145, 255, 0.22), transparent 30rem),
    radial-gradient(circle at 84% 18%, rgba(255, 196, 106, 0.12), transparent 24rem),
    linear-gradient(180deg, #05070c 0%, #08101a 48%, #05070c 100%);
  color: var(--text);
  font-family: "Segoe UI", Arial, sans-serif;
}

html.day-theme body {
  background:
    radial-gradient(circle at 12% 8%, rgba(8, 118, 189, 0.12), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(255, 196, 106, 0.16), transparent 24rem),
    linear-gradient(180deg, #f6f9fd 0%, #edf4fb 48%, #f8fbff 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(5, 7, 12, 0.86);
  border-bottom: 1px solid rgba(54, 215, 255, 0.28);
  backdrop-filter: blur(18px);
}

html.day-theme .site-header {
  background: rgba(246, 249, 253, 0.88);
  border-bottom-color: rgba(8, 118, 189, 0.18);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--steel);
}

.brand img {
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(54, 215, 255, 0.45);
}

.top-nav {
  display: flex;
  gap: clamp(12px, 2vw, 26px);
  color: var(--muted);
  font-size: 15px;
}

.top-nav a {
  padding: 8px 0;
  border-bottom: 1px solid transparent;
}

.top-nav a:hover {
  color: var(--text);
  border-color: var(--line-bright);
}

.toolbar {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
  padding: 4px;
  border: 1px solid rgba(54, 215, 255, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.toolbar button {
  padding: 10px 18px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

html.day-theme .toolbar {
  background: #fff;
  border-color: rgba(8, 118, 189, 0.22);
}

.toolbar button.active {
  background: linear-gradient(135deg, var(--line-bright), var(--green));
  color: #04111d;
}

.hero {
  padding: 24px clamp(18px, 5vw, 72px) 0;
}

.top-banner {
  width: min(100%, 1600px);
  margin: 0 auto;
  border: 1px solid rgba(54, 215, 255, 0.4);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-inner {
  width: min(1180px, 100%);
  margin: 54px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 34px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--line-bright);
  text-transform: uppercase;
  font-size: 13px;
  font-weight: 800;
}

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

h1 {
  margin-bottom: 18px;
  color: var(--steel);
  font-size: clamp(44px, 8vw, 92px);
  line-height: 0.96;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.05;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.lead {
  max-width: 780px;
  color: #d9e9f6;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.55;
}

html.day-theme .lead {
  color: #425c79;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 6px;
  font-weight: 800;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

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

.button.primary {
  color: #031018;
  background: linear-gradient(180deg, #63e6ff, #1593ff);
  box-shadow: 0 0 26px rgba(54, 215, 255, 0.38);
}

.button.secondary {
  color: var(--text);
  border: 1px solid rgba(54, 215, 255, 0.58);
  background: rgba(9, 23, 38, 0.75);
}

html.day-theme .button.secondary {
  color: var(--text);
  border-color: rgba(8, 118, 189, 0.26);
  background: #ffffff;
}

.hero-metrics {
  display: grid;
  gap: 12px;
}

.hero-metrics div,
.steps article,
.feature-grid article,
.price-card {
  background: linear-gradient(180deg, rgba(15, 31, 48, 0.95), rgba(8, 17, 28, 0.95));
  border: 1px solid rgba(54, 215, 255, 0.32);
  border-radius: 8px;
  box-shadow: 0 0 24px rgba(15, 141, 255, 0.12);
}

html.day-theme .hero-metrics div,
html.day-theme .steps article,
html.day-theme .feature-grid article,
html.day-theme .price-card,
html.day-theme .other-program-card {
  background: linear-gradient(180deg, #ffffff, #eef5fc);
  border-color: rgba(8, 118, 189, 0.22);
  box-shadow: var(--shadow);
}

.hero-metrics div {
  padding: 18px;
}

.hero-metrics strong {
  display: block;
  color: var(--amber);
  font-size: 26px;
}

.hero-metrics span {
  color: var(--muted);
}

.visual-band {
  width: min(1180px, calc(100% - 36px));
  margin: 86px auto 0;
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 28px;
  align-items: center;
  padding: 28px;
  border-top: 1px solid rgba(54, 215, 255, 0.35);
  border-bottom: 1px solid rgba(54, 215, 255, 0.35);
  background: rgba(7, 15, 25, 0.72);
}

html.day-theme .visual-band {
  background: rgba(255, 255, 255, 0.72);
  border-top-color: rgba(8, 118, 189, 0.22);
  border-bottom-color: rgba(8, 118, 189, 0.22);
}

.visual-copy p,
.section-heading p,
.feature-grid p,
.steps p,
.price-card p,
.contact p,
.screenshot-copy p {
  color: var(--muted);
  line-height: 1.6;
}

.visual-band img,
.screenshot-frame {
  border-radius: 8px;
  border: 1px solid rgba(54, 215, 255, 0.42);
  box-shadow: var(--shadow);
}

.section {
  width: min(1180px, calc(100% - 36px));
  margin: 96px auto 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.steps article,
.feature-grid article,
.price-card {
  padding: 24px;
}

.steps span {
  display: inline-block;
  margin-bottom: 22px;
  color: var(--green);
  font-weight: 900;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.screenshot-section {
  width: min(1180px, calc(100% - 36px));
  margin: 96px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 32px;
  align-items: center;
}

.screenshot-frame {
  overflow: hidden;
  background: #05070c;
}

html.day-theme .screenshot-frame {
  background: #ffffff;
}

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

.price-card {
  position: relative;
}

.price-card.featured {
  border-color: rgba(255, 196, 106, 0.78);
  box-shadow: 0 0 36px rgba(255, 196, 106, 0.14);
}

.tag {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--line-bright);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.price {
  margin-bottom: 16px;
  color: var(--steel);
  font-size: clamp(34px, 4vw, 50px);
  font-weight: 900;
}

.price-card .button {
  width: 100%;
  margin-top: 14px;
}

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

.other-program-card {
  overflow: hidden;
}

.other-program-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(54, 215, 255, 0.22);
}

.other-program-body {
  padding: 22px;
}

.other-program-body p {
  min-height: 78px;
}

.other-program-body .button {
  width: 100%;
  margin-top: 10px;
}

.contact {
  width: min(1180px, calc(100% - 36px));
  margin: 96px auto 0;
  justify-content: space-between;
  padding: 32px;
  border: 1px solid rgba(54, 215, 255, 0.42);
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(12, 32, 51, 0.94), rgba(8, 14, 23, 0.94));
}

html.day-theme .contact {
  background: linear-gradient(90deg, #ffffff, #eef5fc);
  border-color: rgba(8, 118, 189, 0.22);
}

.contact div {
  max-width: 760px;
}

.site-footer {
  width: min(1180px, calc(100% - 36px));
  margin: 64px auto 0;
  padding: 24px 0 36px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  border-top: 1px solid rgba(54, 215, 255, 0.2);
}

@media (max-width: 920px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-inner,
  .visual-band,
  .screenshot-section,
  .steps,
  .feature-grid,
  .pricing-grid,
  .other-programs-grid {
    grid-template-columns: 1fr;
  }

  .top-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .toolbar {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .hero {
    padding-left: 12px;
    padding-right: 12px;
  }

  .section,
  .visual-band,
  .screenshot-section,
  .contact,
  .site-footer {
    width: calc(100% - 24px);
  }

  .visual-band,
  .contact {
    padding: 20px;
  }
}