:root {
  --canvas: #f4f2ef;
  --surface: #ffffff;
  --surface-sunken: #faf8f6;
  --ink: #191521;
  --ink-soft: #4d4757;
  --muted: #837c90;
  --line: #ece7f0;
  --line-strong: #ded7e6;
  --accent: #6d43d0;
  --accent-deep: #4c2aa0;
  --accent-soft: #f1ecfd;
  --warm: #f2643c;
  --warm-soft: #fdeee9;
  --warm-ink: #b8451f;
  --danger: #b4453a;
  --danger-soft: #fdeceb;
  --glow-1: #ece5fb;
  --glow-2: #fdeadf;
  --preview-wash: linear-gradient(170deg, #efe9fb 0%, #f7f1ec 100%);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --shadow-soft: 0 1px 2px rgba(25, 21, 33, 0.04), 0 18px 40px -28px rgba(50, 35, 90, 0.35);
  --shadow-lift: 0 2px 6px rgba(25, 21, 33, 0.05), 0 32px 60px -32px rgba(50, 35, 90, 0.4);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --canvas: #0e0c13;
  --surface: #171420;
  --surface-sunken: #1e1a29;
  --ink: #f5f2fa;
  --ink-soft: #cdc6db;
  --muted: #948ca6;
  --line: #2a2436;
  --line-strong: #3a3348;
  --accent: #bda3ff;
  --accent-deep: #d8c8ff;
  --accent-soft: #2a2239;
  --warm: #ff9166;
  --warm-soft: #33241e;
  --warm-ink: #ffab86;
  --danger: #ff8d80;
  --danger-soft: #3a2320;
  --glow-1: #221a3a;
  --glow-2: #2d1d23;
  --preview-wash: linear-gradient(170deg, #1d1830 0%, #221a26 100%);
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.4), 0 18px 40px -28px rgba(0, 0, 0, 0.9);
  --shadow-lift: 0 2px 6px rgba(0, 0, 0, 0.45), 0 32px 60px -32px rgba(0, 0, 0, 1);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(900px 520px at 12% -10%, var(--glow-1) 0%, transparent 62%),
    radial-gradient(760px 460px at 96% 4%, var(--glow-2) 0%, transparent 58%),
    var(--canvas);
  color: var(--ink);
  font-family: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s ease, color 0.25s ease;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 11px 18px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn-ghost {
  background: var(--surface);
  border-color: var(--line-strong);
  color: var(--ink-soft);
}

.btn-ghost:hover {
  background: var(--surface-sunken);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #7b43e0, #5a2bb4);
  box-shadow: 0 14px 28px -16px rgba(92, 45, 180, 0.95);
}

.btn-primary:hover {
  box-shadow: 0 18px 34px -16px rgba(92, 45, 180, 1);
}

.btn-lg {
  min-height: 48px;
  padding: 14px 24px;
  font-size: 15px;
}

.btn-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  cursor: pointer;
  touch-action: manipulation;
}

.btn-icon:hover {
  background: var(--surface-sunken);
}

.btn-icon svg {
  width: 18px;
  height: 18px;
}

.btn-icon .icon-moon,
:root[data-theme="dark"] .btn-icon .icon-sun {
  display: none;
}

:root[data-theme="dark"] .btn-icon .icon-moon {
  display: block;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-glyph {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(140deg, #7b43e0 0%, #5a2bb4 55%, #f2643c 160%);
  box-shadow: 0 10px 22px -12px rgba(92, 45, 180, 0.9);
}

.brand-glyph svg {
  width: 22px;
  height: 22px;
}

.brand-text strong {
  display: block;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.brand-text span {
  font-size: 12.5px;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}