/* admin-button.css — the ONE common base for every admin button.
   Load order: admin-base.css  ->  admin-button.css  ->  admin-<page>.css

   Usage:  <button class="ig-btn">…</button>   <a class="ig-btn ig-btn-sm">…</a>

   This file holds layout / spacing / font / radius only. It never hardcodes a
   colour for a specific button. A page's own CSS file gives a button its look by
   setting these variables on a variant class (e.g. .ig-btn-danger):

     --btn-bg            background           (default: var(--primary-color))
     --btn-color         text colour          (default: white)
     --btn-border        border shorthand     (default: none)
     --btn-shadow        box-shadow           (default: soft primary shadow)
     --btn-hover-bg      hover background     (default: var(--primary-hover))
     --btn-hover-color   hover text colour    (default: same as --btn-color)
*/

.ig-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--btn-bg, var(--primary-color));
    color: var(--btn-color, white);
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    border: var(--btn-border, none);
    box-shadow: var(--btn-shadow, 0 5px 20px rgb(26 44 129 / 26%));
    position: relative;

    /* neutral helpers so <a> and <button> render identically */
    justify-content: center;
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.4;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
}

/* :where() keeps this at zero extra specificity, so a page can still override it */
.ig-btn:where(:hover:not(:disabled)) {
    background-color: var(--btn-hover-bg, var(--primary-hover));
    color: var(--btn-hover-color, var(--btn-color, white));
    transform: translateY(-2px);
}

.ig-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

/* Size modifier (spacing only — no colours) */
.ig-btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

/* Icons inside buttons never shrink */
.ig-btn svg {
    flex-shrink: 0;
}