/* ===== CSS Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #FFFFFF;
  --fg: #0A0A0A;
  --muted: #888888;
  --muted-light: rgba(136,136,136,0.5);
  --border: #E5E5E5;
  --secondary: #F5F5F5;
  --radius: 0.5rem;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  min-height: 100vh;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #D4D4D4; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #888; }

/* ===== Utility ===== */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ===== SVG Icons ===== */
.icon { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.icon-sm { width: 16px; height: 16px; }
.icon-xs { width: 12px; height: 12px; }
.icon-lg { width: 28px; height: 28px; }

/* ===== Spinner ===== */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ===== Form Controls ===== */
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-label {
  font-size: 0.75rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--muted);
}
.form-input {
  width: 100%; height: 3rem; padding: 0 1rem;
  background: var(--bg); border: 1px solid var(--border);
  color: var(--fg); font-size: 0.875rem;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  outline: none;
}
.form-input::placeholder { color: var(--muted-light); }
.form-input:focus { border-color: transparent; box-shadow: 0 0 0 2px var(--fg); }