/* ============================================================
   SkoolDash — components.css
   Composants réutilisables : modales, toasts, pagination,
   dropzone CSV, tabs, alerts, spinners, skeletons, tooltips.
   ============================================================ */

/* ------------------------------------------------------------
   Page header (titre + actions de la page courante)
   ------------------------------------------------------------ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}
.page-header__title { margin: 0; font-size: 1.5rem; }
.page-header__actions { display: flex; gap: 10px; }

/* ------------------------------------------------------------
   Alerts
   ------------------------------------------------------------ */
.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    font-size: .9rem;
    margin-bottom: 18px;
    border-left: 4px solid;
}
.alert--info    { background: #eef6fc; color: #1e6091; border-color: var(--color-info); }
.alert--success { background: #e3f7ef; color: #009f75; border-color: var(--color-accent); }
.alert--warning { background: #fff4db; color: #b97b00; border-color: var(--color-warning); }
.alert--danger  { background: #ffe4e4; color: #c0392b; border-color: var(--color-danger); }

[data-theme="dark"] .alert--info    { background: rgba(52, 152, 219, 0.12); color: #8ac8ef; }
[data-theme="dark"] .alert--success { background: rgba(0, 200, 150, 0.12);  color: #7be0c1; }
[data-theme="dark"] .alert--warning { background: rgba(255, 165, 2, 0.15);  color: #ffc561; }
[data-theme="dark"] .alert--danger  { background: rgba(255, 71, 87, 0.15);  color: #ffb3bb; }

/* ------------------------------------------------------------
   Modale
   ------------------------------------------------------------ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 21, 31, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    backdrop-filter: blur(2px);
}
.modal-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}
.modal {
    background: var(--color-card-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    width: min(520px, 92vw);
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform var(--transition);
}
.modal-overlay.is-open .modal { transform: translateY(0); }
.modal__header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--color-border-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal__title { margin: 0; font-size: 1.1rem; }
.modal__close {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--color-text-soft);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}
.modal__body   { padding: 22px; }
.modal__footer {
    padding: 14px 22px;
    border-top: 1px solid var(--color-border-soft);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ------------------------------------------------------------
   Toasts
   ------------------------------------------------------------ */
.toast-stack {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}
.toast {
    background: var(--color-card-bg);
    border-left: 4px solid var(--color-primary);
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-hover);
    font-size: .9rem;
    max-width: 340px;
    pointer-events: auto;
    animation: toast-in 200ms ease;
}
.toast--success { border-color: var(--color-accent); }
.toast--danger  { border-color: var(--color-danger); }
.toast--warning { border-color: var(--color-warning); }

@keyframes toast-in {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ------------------------------------------------------------
   Pagination
   ------------------------------------------------------------ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    gap: 12px;
    flex-wrap: wrap;
}
.pagination__info { color: var(--color-text-soft); font-size: .85rem; }
.pagination__controls { display: flex; gap: 4px; }
.pagination__btn {
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    border: 1px solid var(--color-border);
    background: var(--color-card-bg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: .85rem;
    color: var(--color-text);
    transition: all var(--transition);
}
.pagination__btn:hover:not(:disabled) { background: var(--color-secondary); }
.pagination__btn.is-active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.pagination__btn:disabled { opacity: .5; cursor: not-allowed; }

/* ------------------------------------------------------------
   Dropzone CSV
   ------------------------------------------------------------ */
.dropzone {
    border: 2px dashed var(--color-border);
    border-radius: var(--border-radius);
    padding: 40px 20px;
    text-align: center;
    background: var(--color-secondary);
    transition: border-color var(--transition), background var(--transition);
    cursor: pointer;
}
.dropzone:hover,
.dropzone.is-drag {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
}
.dropzone__icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 10px;
}
.dropzone__text { color: var(--color-text-soft); font-size: .9rem; }
.dropzone__text strong { color: var(--color-primary); }

/* ------------------------------------------------------------
   Tabs
   ------------------------------------------------------------ */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 20px;
}
.tab {
    padding: 10px 16px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-text-soft);
    cursor: pointer;
    font-family: inherit;
    font-size: .9rem;
    font-weight: 500;
    transition: all var(--transition);
}
.tab:hover { color: var(--color-text); }
.tab.is-active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ------------------------------------------------------------
   Spinner
   ------------------------------------------------------------ */
.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 700ms linear infinite;
}
.spinner--lg { width: 32px; height: 32px; border-width: 3px; }

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

/* ------------------------------------------------------------
   Skeleton loader
   ------------------------------------------------------------ */
.skeleton {
    background: linear-gradient(90deg, var(--color-secondary) 25%, var(--color-border-soft) 50%, var(--color-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-shine 1.4s ease-in-out infinite;
    border-radius: var(--border-radius-sm);
    min-height: 1em;
}
@keyframes skeleton-shine {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ------------------------------------------------------------
   Tooltip léger via data-tooltip="texte"
   ------------------------------------------------------------ */
[data-tooltip] { position: relative; }
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: #1f2030;
    color: #fff;
    padding: 5px 9px;
    border-radius: 6px;
    font-size: .75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    z-index: 10;
}
[data-tooltip]:hover::after { opacity: 1; }

/* ------------------------------------------------------------
   Split filtres / actions au-dessus d'un tableau
   ------------------------------------------------------------ */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--border-radius);
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.toolbar__filters { display: flex; gap: 8px; flex-wrap: wrap; }
.toolbar__actions { display: flex; gap: 8px; }

/* ------------------------------------------------------------
   Empty states
   ------------------------------------------------------------ */
.empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--color-text-soft);
}
.empty-state__icon { font-size: 2.5rem; margin-bottom: 10px; opacity: .6; }
.empty-state__title { font-size: 1.1rem; color: var(--color-text); margin-bottom: 6px; }