:root {
  --bg: #070709;
  --bg-elevated: #0d0d10;
  --bg-soft: #121216;

  --surface: rgba(255, 255, 255, 0.035);
  --surface-strong: rgba(255, 255, 255, 0.055);

  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --text: #f5f5f3;
  --text-soft: #b5b5b8;
  --text-muted: #7e7e84;

  --silver: #c8c8cc;
  --silver-bright: #ededf0;

  --gold: #d5b86a;
  --gold-soft: rgba(213, 184, 106, 0.12);
  --gold-line: rgba(213, 184, 106, 0.32);

  --danger: #e97373;

  --shadow-soft:
    0 20px 60px rgba(0, 0, 0, 0.28);

  --shadow-deep:
    0 40px 120px rgba(0, 0, 0, 0.5);

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-xl: 40px;

  --container: 1240px;

  --transition:
    180ms cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 255, 255, 0.035), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body,
button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  background: var(--gold);
  color: #09090b;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.01em;
  transition:
    transform var(--transition),
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    box-shadow var(--transition);
}

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

.button--small {
  min-height: 42px;
  padding: 0 18px;
  font-size: 0.92rem;
}

.button--large {
  min-height: 54px;
  padding: 0 28px;
}

.button--primary {
  background:
    linear-gradient(
      135deg,
      #f1f1f4 0%,
      #c8c8cd 48%,
      #ffffff 100%
    );
  color: #0b0b0d;
  box-shadow:
    0 14px 40px rgba(255, 255, 255, 0.11);
}

.button--primary:hover {
  box-shadow:
    0 18px 50px rgba(255, 255, 255, 0.16);
}

.button--ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.025);
  color: var(--text-soft);
}

.button--ghost:hover {
  border-color: rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
}