/* ============================================
   Buttons - Corporate Design System
   Aligneer v1.0
   ============================================ */

/* ===== BASE BUTTON ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-semibold);
    font-size: var(--font-base);
    border: 1px solid var(--primary);
    cursor: pointer;
    transition: all var(--transition-base);
    line-height: 1;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-primary);
    transform: translateY(-1px);
}

.btn:active {
    transform: scale(0.98);
}

.btn:disabled {
    background: var(--slate-300);
    border-color: var(--slate-300);
    color: var(--slate-500);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

/* display:inline-flex sur .btn écrase le comportement natif de l'attribut hidden —
   on le rétablit explicitement avec une spécificité supérieure. */
.btn[hidden] {
    display: none;
}

/* ===== PRIMARY VARIANT (Défaut) ===== */
.btn-primary {
    background: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-primary);
}

/* ===== SECONDARY VARIANT ===== */
.btn-secondary {
    background: white;
    color: var(--primary);
    border: 1px solid var(--border-dark);
}

.btn-secondary:hover {
    background: var(--slate-50);
    border-color: var(--primary);
    color: var(--primary-dark);
}

/* ===== SUCCESS VARIANT ===== */
.btn-success {
    background: var(--success);
    color: white;
    border: 1px solid var(--success);
}

.btn-success:hover {
    background: #059669;
    border-color: #059669;
    box-shadow: var(--shadow-success);
}

/* ===== DANGER / DELETE VARIANT ===== */
.btn-danger,
.btn-delete {
    background: var(--error);
    color: white;
    border: 1px solid var(--error);
}

.btn-danger:hover,
.btn-delete:hover {
    background: #b91c1c;
    border-color: #b91c1c;
    box-shadow: var(--shadow-error);
}

/* ===== WARNING VARIANT ===== */
.btn-warning {
    background: var(--warning);
    color: white;
    border: 1px solid var(--warning);
}

.btn-warning:hover {
    background: #d97706;
    border-color: #d97706;
}

/* ===== INFO VARIANT ===== */
.btn-info {
    background: var(--info);
    color: white;
    border: 1px solid var(--info);
}

.btn-info:hover {
    background: #2563eb;
    border-color: #2563eb;
}

/* ===== EDIT VARIANT ===== */
.btn-edit {
    background: var(--warning);
    color: white;
    border: 1px solid var(--warning);
}

.btn-edit:hover {
    background: #d97706;
    border-color: #d97706;
}

/* ===== GHOST / OUTLINE VARIANT ===== */
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-outline-secondary {
    background: transparent;
    color: var(--slate-600);
    border: 1px solid var(--border-dark);
}

.btn-outline-secondary:hover {
    background: var(--slate-100);
    border-color: var(--slate-400);
}

/* ===== DARK MODE OVERRIDES ===== */
body.dark-mode .btn-outline-secondary {
    color: var(--slate-300, #cbd5e1);
    border-color: var(--slate-500, #64748b);
    background: transparent;
}
body.dark-mode .btn-outline-secondary:hover {
    background: rgba(255,255,255,.07);
    border-color: var(--slate-300, #cbd5e1);
    color: #ffffff;
}

body.dark-mode .btn-outline {
    color: var(--primary-light, var(--primary-light));
    border-color: var(--primary-light, var(--primary-light));
}
body.dark-mode .btn-outline:hover {
    background: var(--primary-light, var(--primary-light));
    color: #ffffff;
}

body.dark-mode .btn-outline-primary {
    color: var(--primary-light, var(--primary-light));
    border-color: var(--primary-light, var(--primary-light));
    background: transparent;
}
body.dark-mode .btn-outline-primary:hover {
    background: var(--primary-light, var(--primary-light));
    color: #ffffff;
}

/* ===== BUTTON SIZES ===== */
.btn-sm,
.btn-small {
    padding: 0.5rem 1rem;
    font-size: var(--font-sm);
}

.btn-md {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-base);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-lg);
}

/* ===== BUTTON WIDTHS ===== */
.btn-block {
    width: 100%;
    display: flex;
}

.btn-icon-only {
    padding: 0.625rem;
    aspect-ratio: 1;
}

/* ===== BUTTON GROUPS ===== */
.btn-group {
    display: inline-flex;
    gap: var(--spacing-sm);
}

.btn-group .btn {
    margin: 0;
}

/* ===== LOADING STATE ===== */
.btn-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 1rem;
    height: 1rem;
    top: 50%;
    left: 50%;
    margin-left: -0.5rem;
    margin-top: -0.5rem;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to { transform: rotate(360deg); }
}