/* Shared action geometry; colors continue to express action priority. */
.btn-primary, .btn-secondary, .btn-outline {
    box-sizing: border-box;
    min-height: 44px;
    justify-content: center;
    gap: .5rem;
    border: 1px solid transparent;
    border-radius: .75rem;
    font-size: .875rem;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background-color .2s, border-color .2s, color .2s, box-shadow .2s;
}
.btn-outline { border-color: #2b7a78; }
.btn-primary:hover, .btn-secondary:hover, .btn-outline:hover { transform: none; }
.btn-primary > i, .btn-secondary > i, .btn-outline > i { margin-inline: 0; flex-shrink: 0; }
.btn-primary:focus-visible, .btn-secondary:focus-visible, .btn-outline:focus-visible,
.notification-read:focus-visible, .notification-title a:focus-visible {
    outline: 3px solid #3aafa9;
    outline-offset: 3px;
}
.btn-primary:disabled, .btn-secondary:disabled, .btn-outline:disabled,
.notification-read:disabled { opacity: .55; cursor: wait; box-shadow: none; transform: none; }
.page-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem; }
.page-header-actions { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; }

.page-container.notifications-page { max-width: 52rem; }
.page-container.notification-preferences-page { max-width: 40rem; }
.notification-list:hover { transform: none; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.notification-item { display: grid; grid-template-columns: 40px minmax(0, 1fr) 44px; column-gap: 1rem; padding: 1.5rem; background: transparent; }
.notification-item + .notification-item { border-top: 1px solid #e8eeee; }
.notification-icon { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: .75rem; color: #2b7a78; background: #edf6f5; }
.notification-title { font-size: .9375rem; line-height: 1.5; font-weight: 600; color: #17252a; }
.notification-title a:hover { color: #2b7a78; text-decoration: underline; text-underline-offset: 3px; }
.notification-message { margin-top: .375rem; font-size: .875rem; line-height: 1.65; color: #64748b; }
.notification-time { display: block; margin-top: .5rem; font-size: .75rem; color: #64748b; }
.notification-read { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid #dce8e7; border-radius: .75rem; color: #2b7a78; transition: background-color .2s; }
.notification-read:hover { background: #edf6f5; }
.notification-actions { grid-column: 2 / -1; display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1rem; }
.notification-actions .btn-primary, .notification-actions .btn-outline { padding: .625rem 1rem; }
.notification-unread-dot { display: inline-block; width: 6px; height: 6px; margin-inline-end: .5rem; border-radius: 50%; background: #2b7a78; vertical-align: middle; }
.notification-error { margin-bottom: 1rem; color: #b91c1c; font-size: .875rem; }
.notification-empty { padding: 4rem 1.5rem; text-align: center; color: #64748b; }
.notification-empty .notification-icon { margin: 0 auto 1rem; width: 56px; height: 56px; font-size: 1.5rem; border-radius: 1rem; }
.notification-preferences-page input[type="checkbox"] { accent-color: #2b7a78; flex-shrink: 0; }
.dark .notification-item + .notification-item { border-color: #334155; }
.dark .notification-icon { background: #263f46; color: #7ed5cf; }
.dark .notification-title { color: #f1f5f9; }
.dark .notification-title a:hover { color: #7ed5cf; }
.dark .notification-message, .dark .notification-time, .dark .notification-empty { color: #a6b5c7; }
.dark .notification-read { border-color: #425465; color: #7ed5cf; }
.dark .notification-read:hover { background: #263f46; }
.dark .notification-unread-dot { background: #7ed5cf; }
.dark .notification-error { color: #fca5a5; }
@media (max-width: 640px) {
    .notification-item { padding: 1rem; column-gap: .75rem; }
    .notification-item > .min-w-0 { grid-column: 2 / -1; grid-row: 1; }
    .notification-title { min-height: 44px; padding-right: 52px; }
    .notification-read { grid-column: 3; grid-row: 1; }
    .notification-actions { grid-column: 1 / -1; }
    .notification-actions > a { flex: 1; }
    .notifications-page .page-header-actions { width: 100%; }
    .notifications-page .page-header-actions > button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
    .btn-primary, .btn-secondary, .btn-outline, .notification-read { transition: none; }
}