/* ================================================================
   FLAIO Design System — Admin Layer
   Extends flaio.css with admin-specific layout, tables, dashboards.

   Drop-in:
     <link rel="stylesheet" href="flaio.css">
     <link rel="stylesheet" href="flaio-admin.css">
   ================================================================ */

/* ================================================================
   Admin Layout Shell
   ================================================================ */
.fl-admin {
    display: grid;
    grid-template-columns: 240px 1fr;
    grid-template-rows: auto 1fr;
    min-height: 100vh;
}

/* Collapsed sidebar */
.fl-admin.sidebar-collapsed {
    grid-template-columns: 56px 1fr;
}

/* Stack on mobile */
@media (max-width: 768px) {
    .fl-admin {
        grid-template-columns: 1fr;
    }
}

/* ================================================================
   Sidebar
   ================================================================ */
.fl-sidebar {
    grid-row: 1 / -1;
    display: flex;
    flex-direction: column;
    background: var(--fl-surface);
    border-right: 1px solid var(--fl-border);
    padding: var(--fl-sp-4) 0;
    overflow-y: auto;
    transition: width var(--fl-duration);
}

@media (max-width: 768px) {
    .fl-sidebar {
        display: none;
    }
    .fl-admin.sidebar-open .fl-sidebar {
        display: flex;
        position: fixed;
        inset: 0;
        width: 260px;
        z-index: 150;
        box-shadow: var(--fl-shadow-xl);
    }
}

/* ── Sidebar header ── */
.fl-sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--fl-sp-3);
    padding: var(--fl-sp-2) var(--fl-sp-4);
    margin-bottom: var(--fl-sp-4);
}

.fl-sidebar-logo {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--fl-text);
    text-decoration: none;
    user-select: none;
}

.fl-sidebar-logo span {
    color: var(--fl-accent);
}

/* ── Nav section ── */
.fl-sidebar-section {
    margin-bottom: var(--fl-sp-4);
}

.fl-sidebar-label {
    padding: var(--fl-sp-2) var(--fl-sp-4) var(--fl-sp-1);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--fl-text-tertiary);
}

/* ── Nav items ── */
.fl-nav-item {
    display: flex;
    align-items: center;
    gap: var(--fl-sp-2);
    padding: 6px var(--fl-sp-4);
    margin: 1px var(--fl-sp-2);
    font-size: 13px;
    font-weight: 500;
    color: var(--fl-text-secondary);
    text-decoration: none;
    border-radius: var(--fl-radius);
    transition: background var(--fl-duration), color var(--fl-duration);
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--fl-font);
    width: calc(100% - 16px);
    text-align: left;
}

.fl-nav-item:hover {
    background: var(--fl-accent-soft);
    color: var(--fl-text);
}

.fl-nav-item.active {
    background: var(--fl-accent-soft);
    color: var(--fl-accent-text);
}

.fl-nav-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0.65;
}

.fl-nav-item.active svg {
    opacity: 1;
}

.fl-nav-badge {
    margin-left: auto;
    font-size: 11px;
    font-weight: 600;
    color: var(--fl-accent-text);
    background: var(--fl-accent-soft);
    padding: 1px 6px;
    border-radius: var(--fl-radius-full);
    line-height: 1.4;
}

/* ── Sidebar footer ── */
.fl-sidebar-footer {
    margin-top: auto;
    padding: var(--fl-sp-3) var(--fl-sp-4);
    border-top: 1px solid var(--fl-border);
    display: flex;
    align-items: center;
    gap: var(--fl-sp-3);
}

.fl-sidebar-user {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.fl-sidebar-user-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--fl-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fl-sidebar-user-role {
    font-size: 11px;
    color: var(--fl-text-tertiary);
}

/* ================================================================
   Topbar (for non-sidebar layout or mobile)
   ================================================================ */
.fl-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--fl-sp-6);
    height: 52px;
    border-bottom: 1px solid var(--fl-border);
    background: var(--fl-surface);
}

.fl-topbar-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--fl-text);
}

.fl-topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--fl-sp-3);
}

/* ── Breadcrumbs ── */
.fl-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: var(--fl-text-tertiary);
}

.fl-breadcrumbs a {
    color: var(--fl-text-secondary);
    text-decoration: none;
    transition: color var(--fl-duration);
}

.fl-breadcrumbs a:hover {
    color: var(--fl-text);
}

.fl-breadcrumbs-sep {
    color: var(--fl-text-dimmed);
    user-select: none;
}

.fl-breadcrumbs-current {
    color: var(--fl-text);
    font-weight: 500;
}

/* ================================================================
   Content Area
   ================================================================ */
.fl-content {
    padding: var(--fl-sp-8) var(--fl-sp-8);
    max-width: 1200px;
}

@media (max-width: 768px) {
    .fl-content {
        padding: var(--fl-sp-4) var(--fl-sp-4);
    }
}

/* ── Page header ── */
.fl-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--fl-sp-6);
    gap: var(--fl-sp-4);
}

.fl-page-title {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--fl-text);
}

.fl-page-description {
    font-size: 13px;
    color: var(--fl-text-secondary);
    margin-top: 2px;
}

.fl-page-actions {
    display: flex;
    align-items: center;
    gap: var(--fl-sp-2);
    flex-shrink: 0;
}

/* ================================================================
   Stat Cards
   ================================================================ */
.fl-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--fl-sp-4);
    margin-bottom: var(--fl-sp-8);
}

@media (max-width: 1024px) {
    .fl-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 580px) {
    .fl-stats { grid-template-columns: 1fr; }
}

.fl-stat {
    background: var(--fl-surface);
    border: 1px solid var(--fl-border);
    border-radius: var(--fl-radius-lg);
    padding: var(--fl-sp-5);
    transition: background var(--fl-duration), border-color var(--fl-duration);
}

.fl-stat-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--fl-text-secondary);
    margin-bottom: var(--fl-sp-1);
}

.fl-stat-value {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--fl-text);
    line-height: 1.2;
}

.fl-stat-change {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-top: var(--fl-sp-1);
    font-size: 12px;
    font-weight: 500;
}

.fl-stat-change-up   { color: var(--fl-green); }
.fl-stat-change-down { color: var(--fl-red); }

/* ================================================================
   Toolbar (Search + Actions)
   ================================================================ */
.fl-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--fl-sp-4);
    margin-bottom: var(--fl-sp-4);
}

@media (max-width: 580px) {
    .fl-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
}

.fl-search {
    position: relative;
    width: 100%;
    max-width: 320px;
}

@media (max-width: 580px) {
    .fl-search { max-width: 100%; }
}

.fl-search-input {
    width: 100%;
    height: 36px;
    padding: 0 12px 0 36px;
    font-family: var(--fl-font);
    font-size: 13px;
    color: var(--fl-text);
    background: var(--fl-surface);
    border: 1px solid var(--fl-border);
    border-radius: var(--fl-radius);
    outline: none;
    transition: border-color var(--fl-duration), box-shadow var(--fl-duration);
}

.fl-search-input::placeholder {
    color: var(--fl-text-dimmed);
}

.fl-search-input:focus {
    border-color: var(--fl-accent);
    box-shadow: 0 0 0 2px var(--fl-accent-soft);
}

.fl-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--fl-text-dimmed);
    pointer-events: none;
}

.fl-toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--fl-sp-2);
    flex-shrink: 0;
}

.fl-result-count {
    font-size: 12px;
    color: var(--fl-text-tertiary);
    white-space: nowrap;
}

/* ================================================================
   Detail Panel
   ================================================================ */
.fl-detail {
    background: var(--fl-surface);
    border: 1px solid var(--fl-border);
    border-radius: var(--fl-radius-xl);
    padding: var(--fl-sp-6);
    margin-top: var(--fl-sp-4);
}

.fl-detail-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--fl-sp-5);
    gap: var(--fl-sp-4);
}

@media (max-width: 580px) {
    .fl-detail-header {
        flex-direction: column;
    }
}

.fl-detail-title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--fl-text);
}

.fl-detail-meta {
    font-size: 13px;
    color: var(--fl-text-secondary);
    line-height: 1.8;
}

.fl-detail-meta span {
    display: inline-block;
    margin-right: var(--fl-sp-5);
}

.fl-detail-actions {
    display: flex;
    gap: var(--fl-sp-2);
    flex-shrink: 0;
}

.fl-detail-section {
    margin-top: var(--fl-sp-5);
}

.fl-detail-section h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--fl-text);
    margin-bottom: var(--fl-sp-3);
}

/* ── Property list (key/value pairs) ── */
.fl-props {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: var(--fl-sp-2) var(--fl-sp-4);
    font-size: 13px;
}

@media (max-width: 480px) {
    .fl-props {
        grid-template-columns: 1fr;
    }
}

.fl-prop-label {
    font-weight: 500;
    color: var(--fl-text-secondary);
}

.fl-prop-value {
    color: var(--fl-text);
    word-break: break-word;
}

/* ================================================================
   Empty State
   ================================================================ */
.fl-empty {
    text-align: center;
    padding: var(--fl-sp-16) var(--fl-sp-6);
}

.fl-empty-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--fl-sp-4);
    color: var(--fl-text-dimmed);
}

.fl-empty-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--fl-text);
    margin-bottom: var(--fl-sp-1);
}

.fl-empty-text {
    font-size: 13px;
    color: var(--fl-text-tertiary);
    max-width: 320px;
    margin: 0 auto var(--fl-sp-4);
}

/* ================================================================
   Loading State
   ================================================================ */
.fl-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--fl-sp-3);
    padding: var(--fl-sp-12);
    color: var(--fl-text-tertiary);
    font-size: 13px;
}

.fl-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--fl-border);
    border-top-color: var(--fl-accent);
    border-radius: 50%;
    animation: fl-spin 600ms linear infinite;
}

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

/* ================================================================
   Inline / Flat Layout (no sidebar)
   For simpler admin pages that use a centered container.
   ================================================================ */
.fl-admin-flat {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--fl-sp-6) var(--fl-sp-16);
}

/* ── Header bar (flat layout) ── */
.fl-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--fl-sp-5) 0;
    border-bottom: 1px solid var(--fl-border);
    margin-bottom: 0;
}

.fl-header-right {
    display: flex;
    align-items: center;
    gap: var(--fl-sp-4);
}

/* ================================================================
   Form layout
   ================================================================ */
.fl-form-row {
    display: flex;
    gap: var(--fl-sp-4);
    align-items: flex-end;
    flex-wrap: wrap;
}

.fl-form-row .fl-field {
    flex: 1;
    min-width: 160px;
}

.fl-form-divider {
    border: none;
    border-top: 1px solid var(--fl-border);
    margin: var(--fl-sp-5) 0;
}

/* ================================================================
   Confirmation dialog (destructive actions)
   ================================================================ */
.fl-confirm-message {
    font-size: 14px;
    color: var(--fl-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--fl-sp-4);
}