/* UI primitives extracted from common.css */

.btn {
    -webkit-appearance: none;
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0 14px;
    min-height: 36px;
    border-radius: 8px;
    border: 1px solid color-mix(in srgb, var(--fg) 8%, transparent);
    color: var(--fg);
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 15px;
    line-height: 1;
    text-decoration: none !important;
    cursor: pointer;
    transition: border-color 180ms ease, box-shadow 160ms ease;
    position: relative;
    overflow: hidden;
  }
  .btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background: #000; /* overlay layer for animated tints */
    opacity: 0;
    transition: opacity 180ms ease;
    pointer-events: none;
    border-radius: inherit;
  }
  .btn:active { transform: none; }
  .btn[disabled], .btn.is-disabled { opacity: 0.6; cursor: not-allowed; }
  
  .btn.primary {
    background: linear-gradient(180deg, #F3F2F2 0%, #E6E6E6 87.5%) !important;
    border-radius: 100px;
    border: none !important;
    color: black !important;
  }
  .btn.primary:visited {
    color: black !important;
    opacity: 1 !important;
  }
  /* Exact hover and active styles for primary button */
  .btn.primary:hover { border: none !important; }
  .btn.primary:active { border: none !important; }
  .btn.primary:hover::before { opacity: 0.04; }
  .btn.primary:active::before { opacity: 0.08; }
  .darkmode .btn.primary { background: linear-gradient(180deg, #7a9fcd 5.17%, #6f93c1 23.1%, #6f93c1 76.9%, #7a9fcd 94.83%); }
  
  .btn.secondary {
    background: linear-gradient(180deg, #FFFFFF 5.17%, #F6F6F6 22.41%, #F4F5F7 82.31%, #F6F7F9 94.83%);
    border: 1px solid rgba(0, 0, 0, 0.1);
  }
  .btn.secondary, .btn.secondary:hover, .btn.secondary:visited { color: var(--fg) !important; }
  
  /* Exact hover and active styles for secondary (default) button */
  .btn.secondary:hover { border: 1px solid rgba(0, 0, 0, 0.14); }
  .btn.secondary:active { border: 1px solid rgba(0, 0, 0, 0.18); }
  .btn.secondary:hover::before { opacity: 0.02; }
  .btn.secondary:active::before { opacity: 0.05; }
  
  .btn.ghost {
    background: transparent;
    border-color: color-mix(in srgb, var(--fg) 12%, transparent);
  }
  
  /* Plain text button: looks like text, turns into a pill on hover/active */
  .btn.plain {
    background: transparent;
    border-color: transparent !important;
    color: var(--fg);
  }
  .btn.plain, .btn.plain:hover, .btn.plain:visited { color: var(--fg) !important; }
  .btn.plain::before { display: none; }
  .btn.plain:hover, .btn.plain:focus-visible {
    background: rgba(0, 0, 0, 0.05);
  }
  .btn.plain:active {
    background: rgba(0, 0, 0, 0.08);
  }
  .darkmode .btn.plain:hover, .darkmode .btn.plain:focus-visible { background: rgba(255, 255, 255, 0.08); }
  .darkmode .btn.plain:active { background: rgba(255, 255, 255, 0.12); }
  
  /* Size variants */
  .btn.small, .btn.sm { min-height: 32px; padding: 0 12px; border-radius: 8px; }
  .btn.standard { min-height: 36px; padding: 0 14px; border-radius: 8px; }
  .btn.big, .btn.lg { font-size: 16px; min-height: 40px; padding: 0 18px; border-radius: 100px; }
  
  .input, input.input, input[type="text"], input[type="email"], input[type="search"], input[type="number"], input[type="url"], input[type="password"], textarea.input {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    padding: 0.7rem 0.8rem;
    border-radius: 10px;
    border: 1px solid color-mix(in srgb, var(--fg) 15%, transparent);
    background: color-mix(in srgb, var(--bg) 96%, var(--fg) 4%);
    color: var(--fg);
    font-family: var(--font-sans);
    font-size: 1rem;
    outline: none;
    transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
  }
  .input:focus, input:focus, textarea:focus {
    border-color: color-mix(in srgb, var(--blue) 50%, var(--fg) 50%);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 15%, transparent);
  }
  .input.invalid { border-color: var(--red); }
  
  .field { display: grid; gap: 0.35rem; }
  .field label { font-family: var(--font-sans); color: var(--fg2); font-size: 0.95rem; }
  .field .error { color: var(--red); font-size: 0.92rem; }