:root {
  /* Aurora Studio design tokens — light mode, white-first / black-second, rounded */
  --aur-white: #ffffff;
  --aur-bg: #fafafa;
  --aur-bg-soft: #f4f4f4;
  --aur-black: #111111;
  --aur-ink: #171717;
  --aur-muted: #7a7a7a;
  --aur-faint: #b9b9b9;
  --aur-border: #ececec;
  --aur-border-strong: #dcdcdc;

  --aur-accent: #111111;
  --aur-accent-soft: #f0f0f0;
  --aur-violet: #6a5cff;
  --aur-mint: #17c98b;
  --aur-coral: #ff5d5d;
  --aur-amber: #ffb037;

  --aur-r-xs: 8px;
  --aur-r-sm: 12px;
  --aur-r-md: 16px;
  --aur-r-lg: 22px;
  --aur-r-xl: 30px;
  --aur-r-round: 999px;

  --aur-shadow-sm: 0 1px 2px rgba(17,17,17,.04), 0 1px 1px rgba(17,17,17,.03);
  --aur-shadow-md: 0 10px 30px -12px rgba(17,17,17,.16);
  --aur-shadow-lg: 0 24px 60px -20px rgba(17,17,17,.28);
  --aur-shadow-focus: 0 0 0 4px rgba(17,17,17,.08);

  --aur-font: 'Inter', system-ui, -apple-system, sans-serif;
  --aur-ease: cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; }
html, body { padding: 0; margin: 0; }
body {
  font-family: var(--aur-font);
  background: var(--aur-bg);
  color: var(--aur-ink);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--aur-ink); color: var(--aur-white); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #e2e2e2; border-radius: 999px; border: 2px solid var(--aur-bg); }
::-webkit-scrollbar-thumb:hover { background: #cfcfcf; }

button { font-family: inherit; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--aur-r-round);
  font-weight: 600;
  font-size: 14.5px;
  border: none;
  cursor: pointer;
  transition: transform .15s var(--aur-ease), box-shadow .15s var(--aur-ease), background .15s var(--aur-ease), opacity .15s var(--aur-ease);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-dark { background: var(--aur-black); color: var(--aur-white); box-shadow: var(--aur-shadow-sm); }
.btn-dark:hover { box-shadow: var(--aur-shadow-md); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--aur-ink); }
.btn-ghost:hover { background: var(--aur-bg-soft); }
.btn-outline { background: var(--aur-white); color: var(--aur-ink); border: 1.5px solid var(--aur-border-strong); }
.btn-outline:hover { border-color: var(--aur-ink); }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-icon { width: 38px; height: 38px; padding: 0; justify-content: center; border-radius: var(--aur-r-sm); }
.btn:disabled { opacity: .45; cursor: not-allowed; pointer-events: none; }

input[type="text"], input[type="url"], input[type="number"], input[type="email"], input[type="date"], input[type="datetime-local"], textarea, select {
  font-family: inherit;
  border: 1.5px solid var(--aur-border);
  background: var(--aur-white);
  border-radius: var(--aur-r-sm);
  padding: 10px 13px;
  font-size: 14px;
  color: var(--aur-ink);
  outline: none;
  transition: border-color .15s var(--aur-ease), box-shadow .15s var(--aur-ease);
  width: 100%;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--aur-ink);
  box-shadow: var(--aur-shadow-focus);
}
input[type="color"] {
  -webkit-appearance: none;
  width: 38px; height: 38px;
  border-radius: var(--aur-r-sm);
  border: 1.5px solid var(--aur-border);
  padding: 3px;
  cursor: pointer;
  background: var(--aur-white);
}
input[type="color"]::-webkit-color-swatch { border-radius: 7px; border: none; }
input[type="range"] { accent-color: var(--aur-ink); width: 100%; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(17,17,17,.35); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center; z-index: 200;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--aur-white); border-radius: var(--aur-r-lg); padding: 28px;
  width: 420px; max-width: 90vw; box-shadow: var(--aur-shadow-lg);
  animation: aur-pop .18s var(--aur-ease);
}
@keyframes aur-pop { from { opacity: 0; transform: scale(.96) translateY(6px);} to { opacity:1; transform:none; } }
.modal h3 { margin: 0 0 6px; font-size: 19px; font-weight: 800; }
.modal-sub { margin: 0 0 18px; color: var(--aur-muted); font-size: 13.5px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }