:root,
:root[data-theme="dark"] {
  --bg: #090e18;
  --bg-top: #070b14;
  --bg-bottom: #0e1730;
  --card: rgba(15, 24, 40, 0.82);
  --text: #f3f6ff;
  --muted: #a9b6d1;
  --accent: #35d8ff;
  --accent-2: #55ffa6;
  --border: rgba(255, 255, 255, 0.14);
  --shadow: 0 20px 48px rgba(0, 0, 0, 0.42);
  --button-bg: #1c2a46;
  --note-bg: rgba(255, 255, 255, 0.05);
}

:root[data-theme="light"] {
  --bg: #f8f6f2;
  --bg-top: #fffdf8;
  --bg-bottom: #efe8dd;
  --card: rgba(255, 255, 255, 0.9);
  --text: #1c2233;
  --muted: #5a6376;
  --accent: #d36b2d;
  --accent-2: #18967f;
  --border: rgba(28, 34, 51, 0.14);
  --shadow: 0 16px 36px rgba(92, 72, 40, 0.18);
  --button-bg: #efe5d6;
  --note-bg: rgba(28, 34, 51, 0.04);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 8% 10%, color-mix(in srgb, var(--accent-2) 14%, transparent), transparent 35%),
    radial-gradient(circle at 90% 20%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 30%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg) 55%, var(--bg-bottom) 100%);
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI Variable", "Trebuchet MS", sans-serif;
}

body {
  position: relative;
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  z-index: 0;
  border-radius: 50%;
  filter: blur(64px);
  pointer-events: none;
}

.bg-glow-one {
  width: 240px;
  height: 240px;
  top: -40px;
  left: -40px;
  background: color-mix(in srgb, var(--accent-2) 24%, transparent);
}

.bg-glow-two {
  width: 240px;
  height: 240px;
  right: -40px;
  bottom: 20vh;
  background: color-mix(in srgb, var(--accent) 24%, transparent);
}

.theme-toggle {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 2;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 11px;
  font: 600 0.8rem/1 "Avenir Next", "Segoe UI Variable", "Trebuchet MS", sans-serif;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.page-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 56px 14px 28px;
  position: relative;
  z-index: 1;
}

.hero-card {
  width: 100%;
  max-width: 560px;
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 24px 16px;
  background: var(--card);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  text-align: center;
  animation: card-enter 500ms ease-out;
}

.brand-logo-wrap {
  display: grid;
  place-items: center;
}

.brand-logo {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid color-mix(in srgb, var(--accent) 60%, white);
  box-shadow: 0 0 0 7px color-mix(in srgb, var(--accent) 18%, transparent);
}

.brand-logo-light {
  display: none;
}

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

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

h1 {
  margin: 14px 0 8px;
  font-family: "Rockwell", "Avenir Next", "Trebuchet MS", sans-serif;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
}

p {
  margin: 0 0 16px;
  color: var(--muted);
}

.hashtag-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 700;
}

.hashtag-link:hover,
.hashtag-link:focus-visible {
  color: var(--accent-2);
}

.feature-media {
  margin: 0 0 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--note-bg);
}

.feature-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center center;
}

.cta-stack {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.link-button {
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 88%, transparent);
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 600;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.link-button:hover,
.link-button:focus-visible {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 75%, var(--border));
  background: color-mix(in srgb, var(--accent) 14%, var(--card));
}

.link-button.primary {
  background: linear-gradient(110deg, color-mix(in srgb, var(--accent) 30%, transparent), color-mix(in srgb, var(--accent-2) 25%, transparent));
  border-color: color-mix(in srgb, var(--accent-2) 45%, var(--border));
}

.newsletter {
  margin: 6px 0 18px;
  text-align: left;
}

.newsletter label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.newsletter-row {
  display: grid;
  gap: 8px;
}

.newsletter input,
.newsletter button {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  font: inherit;
}

.newsletter input {
  padding: 11px 12px;
  background: color-mix(in srgb, var(--card) 92%, white);
  color: var(--text);
}

.newsletter input::placeholder {
  color: color-mix(in srgb, var(--muted) 80%, white);
}

.newsletter button {
  padding: 11px 12px;
  cursor: pointer;
  background: var(--button-bg);
  color: var(--text);
  font-weight: 700;
}

.newsletter small {
  display: block;
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.4;
}

.social-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text);
  background: color-mix(in srgb, var(--card) 92%, transparent);
  transition: transform 160ms ease, border-color 160ms ease;
}

.social-link:hover,
.social-link:focus-visible {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent-2) 75%, var(--border));
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 640px) {
  .theme-toggle {
    top: 16px;
    right: 16px;
  }

  .page-wrap {
    padding: 46px 20px;
  }

  .hero-card {
    padding: 32px 28px;
  }

  h1 {
    font-size: 2rem;
  }

  .newsletter-row {
    grid-template-columns: 1fr auto;
  }

  .newsletter button {
    width: 150px;
  }

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

@keyframes card-enter {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}