:root {
  color-scheme: light;
  --header-space-expanded: 126px;
  --header-space-compact: 82px;
  --tape-height: 28px;
  --bg0: #f0f4ff;
  --bg1: #eef7ff;
  --bg2: #f9fbff;
  --glow1: rgba(78, 129, 255, 0.2);
  --glow2: rgba(33, 189, 202, 0.15);
  --text: #0f2345;
  --muted: #3f587f;
  --brand: #3f7bf6;
  --accent: #1f97d6;
  --card: rgba(255, 255, 255, 0.84);
  --border: rgba(110, 145, 220, 0.25);
  --pill-text: #2d4f88;
  --label: #214067;
  --field-bg: #ffffff;
  --button-text: #f8fbff;
  --button-bg-a: #2f6df0;
  --button-bg-b: #2f93d1;
  --logo-panel-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(242, 248, 255, 0.95));
  --logo-panel-border: rgba(146, 176, 255, 0.5);
  --logo-filter: none;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg0: #04060f;
  --bg1: #0c1430;
  --bg2: #15213d;
  --glow1: rgba(77, 119, 255, 0.35);
  --glow2: rgba(16, 185, 207, 0.26);
  --text: #e7ecff;
  --muted: #a9b5d9;
  --brand: #75a7ff;
  --accent: #67e8f9;
  --card: rgba(14, 22, 47, 0.78);
  --border: rgba(146, 176, 255, 0.25);
  --pill-text: #d3deff;
  --label: #dce4ff;
  --field-bg: rgba(9, 16, 36, 0.86);
  --button-text: #04102a;
  --button-bg-a: #9ebeff;
  --button-bg-b: #7af5ff;
  --logo-panel-bg: linear-gradient(180deg, rgba(241, 245, 255, 0.98), rgba(230, 237, 252, 0.96));
  --logo-panel-border: rgba(255, 255, 255, 0.7);
  --logo-filter: saturate(1.02);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]),
  :root[data-theme="system"] {
    color-scheme: dark;
    --bg0: #04060f;
    --bg1: #0c1430;
    --bg2: #15213d;
    --glow1: rgba(77, 119, 255, 0.35);
    --glow2: rgba(16, 185, 207, 0.26);
    --text: #e7ecff;
    --muted: #a9b5d9;
    --brand: #75a7ff;
    --accent: #67e8f9;
    --card: rgba(14, 22, 47, 0.78);
    --border: rgba(146, 176, 255, 0.25);
    --pill-text: #d3deff;
    --label: #dce4ff;
    --field-bg: rgba(9, 16, 36, 0.86);
    --button-text: #04102a;
    --button-bg-a: #9ebeff;
    --button-bg-b: #7af5ff;
    --logo-panel-bg: linear-gradient(180deg, rgba(241, 245, 255, 0.98), rgba(230, 237, 252, 0.96));
    --logo-panel-border: rgba(255, 255, 255, 0.7);
    --logo-filter: saturate(1.02);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1000px 500px at 5% 0%, var(--glow1), transparent 60%),
    radial-gradient(900px 420px at 100% 100%, var(--glow2), transparent 60%),
    linear-gradient(130deg, var(--bg0), var(--bg1), var(--bg2));
  min-height: 100vh;
  padding-top: var(--header-space-expanded);
  transition: padding-top 220ms ease;
}

body.is-compact-header {
  padding-top: var(--header-space-compact);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--card) 90%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.site-header-inner {
  position: relative;
  z-index: 1;
  width: min(1024px, 92vw);
  margin: 0 auto;
  min-height: calc(var(--header-space-expanded) - var(--tape-height));
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.95rem;
  align-items: center;
  transition: min-height 220ms ease, gap 220ms ease;
}

.coming-soon-tape {
  height: var(--tape-height);
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 80%, var(--brand) 20%);
}

.coming-soon-tape-track {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  width: 100%;
  height: 100%;
  align-items: center;
  gap: 0.7rem;
  padding: 0;
}

.tape-diamond-line {
  display: flex;
  align-items: center;
  min-height: 100%;
  padding: 0 0.45rem;
  line-height: 1;
  overflow: hidden;
  white-space: nowrap;
  background:
    repeating-linear-gradient(
      -45deg,
      color-mix(in srgb, var(--text) 18%, transparent) 0 12px,
      transparent 12px 24px
    );
  color: color-mix(in srgb, var(--text) 65%, transparent);
  font-family: "Rajdhani", Inter, system-ui, sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  opacity: 0.75;
}

.tape-diamond-line-left {
  text-align: right;
}

.tape-diamond-line-right {
  text-align: left;
}

.tape-label {
  line-height: 1;
  color: color-mix(in srgb, var(--text) 82%, transparent);
  font-family: "Rajdhani", Inter, system-ui, sans-serif;
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  white-space: nowrap;
}

.site-header-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  text-decoration: none;
}

.site-header-logo {
  width: min(230px, 31vw);
  height: auto;
  display: block;
  filter: var(--logo-filter);
  transition: width 220ms ease;
}

.site-header-name {
  display: inline-block;
  justify-self: center;
  margin: 0;
  text-align: center;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: "Rajdhani", Inter, system-ui, sans-serif;
  font-size: clamp(1.18rem, 2.4vw, 1.72rem);
  font-weight: 700;
  white-space: nowrap;
  overflow: visible;
  transition: font-size 220ms ease, letter-spacing 220ms ease;
}

body.is-compact-header .site-header-inner {
  min-height: calc(var(--header-space-compact) - var(--tape-height));
  gap: 0.72rem;
}

body.is-compact-header .site-header-logo {
  width: min(148px, 25vw);
}

body.is-compact-header .site-header-name {
  font-size: clamp(1.02rem, 1.9vw, 1.34rem);
  letter-spacing: 0.08em;
}

@keyframes tape-slide {
  from {
    transform: translate(-7%, -50%) rotate(-8deg);
  }

  to {
    transform: translate(7%, -50%) rotate(-8deg);
  }
}

.page {
  width: min(1024px, 92vw);
  margin: 3rem auto;
  display: grid;
  gap: 1.25rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  backdrop-filter: blur(7px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.36);
  padding: 1.3rem;
}

.hero-layout {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1fr;
  align-items: center;
}

.hero-content h1 {
  margin: 0.5rem 0 0.8rem;
  font-size: clamp(1.6rem, 3.8vw, 2.6rem);
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.16rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 90%, transparent);
  opacity: 0.88;
  transition: transform 220ms ease;
}

.theme-menu {
  position: relative;
  justify-self: end;
  display: inline-flex;
  align-items: center;
}

.theme-menu-trigger {
  border: 1px solid transparent;
  border-radius: 999px;
  background: color-mix(in srgb, var(--card) 88%, transparent);
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  line-height: 1;
  min-width: 1.85rem;
  padding: 0.3rem 0.42rem;
  cursor: pointer;
}

.theme-menu-trigger:hover {
  color: var(--text);
  border-color: var(--border);
}

.theme-menu-trigger:focus {
  border-color: var(--border);
}

.theme-menu .theme-switch {
  position: absolute;
  top: calc(100% + 0.32rem);
  right: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition:
    opacity 170ms ease,
    transform 170ms ease;
}

.theme-menu:hover .theme-switch,
.theme-menu:focus-within .theme-switch {
  opacity: 0.96;
  pointer-events: auto;
  transform: translateY(0);
}

.theme-btn {
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1;
  min-width: 1.8rem;
  padding: 0.24rem 0.4rem;
  cursor: pointer;
}

.theme-btn:hover {
  color: var(--text);
}

.theme-btn[aria-pressed="true"] {
  color: var(--text);
  border-color: var(--border);
  background: color-mix(in srgb, var(--card) 82%, var(--brand) 18%);
}

body.is-compact-header .site-header .theme-switch {
  transform: scale(0.92);
  transform-origin: right center;
}

.lead {
  color: var(--muted);
  line-height: 1.65;
  max-width: 72ch;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.95rem;
}

.pill {
  font-size: 0.78rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.28rem 0.68rem;
  color: var(--pill-text);
}

.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-list {
  margin: 0.75rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
  line-height: 1.6;
}

.feature-list li + li {
  margin-top: 0.52rem;
}

.contact-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 1.15rem;
  align-items: start;
}

.contact-copy p {
  color: var(--muted);
  line-height: 1.65;
}

.contact-form {
  display: grid;
  gap: 0.65rem;
}

label {
  font-size: 0.86rem;
  color: var(--label);
}

input,
textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field-bg);
  color: var(--text);
  padding: 0.68rem 0.78rem;
  font: inherit;
}

input:focus,
textarea:focus,
button:focus {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}

.contact-form button {
  margin-top: 0.5rem;
  border: none;
  border-radius: 10px;
  padding: 0.72rem 1rem;
  font: inherit;
  font-weight: 600;
  color: var(--button-text);
  background: linear-gradient(135deg, var(--button-bg-a), var(--button-bg-b));
  cursor: pointer;
}

.contact-form button:hover {
  filter: brightness(1.06);
}

.contact-form button:disabled {
  cursor: not-allowed;
  opacity: 0.66;
}

#form-status {
  min-height: 1.25rem;
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

#form-status.ok {
  color: #9fffe3;
}

#form-status.error {
  color: #ffc4cd;
}

@media (max-width: 820px) {
  :root {
    --header-space-expanded: 96px;
    --header-space-compact: 72px;
    --tape-height: 24px;
  }

  .site-header-logo {
    width: min(190px, 48vw);
  }

  body.is-compact-header .site-header-logo {
    width: min(138px, 42vw);
  }

  .hero-layout,
  .grid,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .theme-switch {
    width: fit-content;
  }

  .theme-menu .theme-switch {
    right: -0.05rem;
  }

  .page {
    margin: 1.8rem auto;
  }
}

@media (max-width: 560px) {
  .site-header-name {
    display: none;
  }
}