:root {
  --bg: #07090d;
  --bg-elevated: rgba(17, 21, 26, 0.92);
  --panel: #10151a;
  --panel-soft: #141b20;
  --line: rgba(255, 255, 255, 0.08);
  --text: #edf1f5;
  --muted: #9aa4ad;
  --heading: #f7f8fa;
  --primary: #e8ebef;
  --primary-strong: #dfe4ea;
  --secondary: #b7bec7;
  --accent: #f3f4f6;
  --shadow: rgba(0, 0, 0, 0.34);
  --success: #c7d2da;
  --size-xxs: 0.5rem;
  --size-xs: 0.75rem;
  --size-sm: 0.875rem;
  --size-base: 1rem;
  --size-lg: 1.125rem;
  --size-xl: 1.25rem;
  --size-2xl: 1.5rem;
  --size-3xl: 1.875rem;
  --size-4xl: 2.25rem;
  --size-5xl: 3rem;
  --size-6xl: 3.75rem;
  --size-7xl: 4.5rem;
}

.light-mode {
  --bg: #f4f5f7;
  --bg-elevated: rgba(255, 255, 255, 0.9);
  --panel: #ffffff;
  --panel-soft: #f8f9fb;
  --line: rgba(15, 23, 42, 0.08);
  --text: #111827;
  --muted: #526071;
  --heading: #101828;
  --primary: #0f172a;
  --primary-strong: #1f2937;
  --secondary: #475569;
  --accent: #0f172a;
  --shadow: rgba(15, 23, 42, 0.1);
  --success: #5b6471;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  line-height: calc(1em + 0.5rem);
}

html {
  scroll-behavior: smooth;
}

body {
  transition: background-color 0.3s ease, color 0.3s ease;
  font-family: "General Sans", sans-serif;
  background:
radial-gradient(circle at top, rgba(255, 255, 255, 0.05), transparent 28%),
linear-gradient(180deg, var(--bg) 0%, #0b0f14 100%);
  color: var(--text);
}

body.light-mode {
  background:
radial-gradient(circle at top, rgba(15, 23, 42, 0.03), transparent 22%),
linear-gradient(180deg, #f5f6f8 0%, #eef1f5 100%);
}

img {
  display: block;
  max-width: 100%;
  user-select: none;
}

button,
a {
  font: inherit;
}

button {
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

ul {
  list-style: none;
}

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

p {
  color: var(--muted);
}

strong {
  color: var(--heading);
}

::selection {
  background: rgba(124, 58, 237, 0.3);
}

body::-webkit-scrollbar {
  width: 10px;
}

body::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.1);
}

body::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), var(--primary));
  border-radius: 999px;
}