/* ============================================================
   EEGTP Laura Vicuña – Admin Panel CSS
   Adapted from reference espaceadmin design
   ============================================================ */

:root {
    --admin-green: #0d6b57;
    --admin-green-dark: #084838;
    --admin-green-soft: #d9f0ea;
    --admin-sand: #f6f1e8;
    --admin-sky: #e7f1ef;
    --admin-cream: #fbf8f2;
    --admin-gold: #c68a2a;
    --admin-ink: #1b1f23;
    --admin-muted: #5a6470;
    --admin-border: #d8e2df;
    --admin-danger: #b02a37;
    --admin-warning: #a35c00;
    --admin-sidebar-bg: #0c211b;
    --admin-sidebar-width: 320px;
    --admin-sidebar-collapsed: 80px;
    --admin-topbar-height: 64px;
    --admin-radius: 24px;
    --admin-radius-sm: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body.admin-body {
    font-family: 'Segoe UI', 'Metropolis', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #f2f5f4;
    color: var(--admin-ink);
    overflow-x: hidden;
}

/* ---- Admin Shell (2-column grid) ---- */
.admin-shell {
    display: grid;
    grid-template-columns: var(--admin-sidebar-width) 1fr;
    min-height: 100vh;
    transition: grid-template-columns 0.3s ease;
}

.admin-shell.is-collapsed {
    grid-template-columns: var(--admin-sidebar-collapsed) 1fr;
}

/* ---- Sidebar ---- */
.admin-sidebar {
    background: var(--admin-sidebar-bg);
    color: #fff;
    padding: 1.4rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transition: padding 0.3s ease, width 0.3s ease;
    z-index: 1050;
}

.admin-sidebar::-webkit-scrollbar { width: 4px; }
.admin-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }

.admin-sidebar-brand {
    display: flex;
    gap: 0.85rem;
    align-items: center;
    margin-bottom: 1.8rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.admin-sidebar-brand img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 10px;
    flex-shrink: 0;
}

.admin-sidebar-brand .brand-text strong {
    display: block;
    font-size: 0.95rem;
    line-height: 1.3;
}

.admin-sidebar-brand .brand-text span {
    display: block;
    color: rgba(255,255,255,0.6);
    font-size: 0.8rem;
}

/* Menu */
.admin-menu {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
}

.admin-menu a,
.admin-menu-group > summary {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    padding: 0.7rem 0.85rem;
    border-radius: var(--admin-radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    list-style: none;
    border: none;
    background: none;
    width: 100%;
}

.admin-menu a:hover,
.admin-menu-group > summary:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

.admin-menu a.active,
.admin-menu-group > summary.active {
    background: rgba(255,255,255,0.13);
    color: #fff;
}

.admin-menu a i,
.admin-menu-group > summary i {
    font-size: 1.15rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.admin-menu-group {
    border: none;
}

.admin-menu-group > summary::-webkit-details-marker { display: none; }

.admin-menu-group > summary .toggle-arrow {
    margin-left: auto;
    font-size: 0.7rem;
    transition: transform 0.25s;
}

.admin-menu-group[open] > summary .toggle-arrow {
    transform: rotate(180deg);
}

.admin-submenu {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding-left: 0.5rem;
    margin-top: 0.25rem;
    border-left: 2px solid rgba(255,255,255,0.1);
    margin-left: 1.35rem;
}

.admin-submenu a {
    padding: 0.55rem 0.7rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255,255,255,0.65);
}

.admin-submenu a:hover {
    color: #fff;
    padding-left: 0.9rem;
}

.admin-submenu a.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

/* Nested sub-submenu (3rd level) */
.admin-submenu .admin-menu-subgroup {
    border: none;
    margin: 0;
}

.admin-submenu .admin-menu-subgroup > summary {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.7rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255,255,255,0.65);
    cursor: pointer;
    list-style: none;
    border-radius: var(--admin-radius-sm);
    transition: all 0.2s;
}

.admin-submenu .admin-menu-subgroup > summary::-webkit-details-marker { display: none; }

.admin-submenu .admin-menu-subgroup > summary:hover {
    color: #fff;
    padding-left: 0.9rem;
}

.admin-submenu .admin-menu-subgroup > summary.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.admin-submenu .admin-menu-subgroup > summary .toggle-arrow {
    margin-left: auto;
    font-size: 0.6rem;
    transition: transform 0.25s;
}

.admin-submenu .admin-menu-subgroup[open] > summary .toggle-arrow {
    transform: rotate(180deg);
}

.admin-sub-submenu {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    padding-left: 0.4rem;
    margin-top: 0.15rem;
    margin-left: 1rem;
    border-left: 2px solid rgba(255,255,255,0.07);
}

.admin-sub-submenu a {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
    font-weight: 400;
    color: rgba(255,255,255,0.55);
    text-decoration: none;
    border-radius: var(--admin-radius-sm);
    transition: all 0.2s;
}

.admin-sub-submenu a:hover {
    color: #fff;
    padding-left: 0.8rem;
}

.admin-sub-submenu a.active {
    color: #fff;
    background: rgba(255,255,255,0.08);
}

/* Sidebar footer */
.admin-sidebar-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.admin-sidebar-user {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.admin-sidebar-user .user-avatar {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.admin-sidebar-user .user-meta {
    min-width: 0;
    flex: 1;
}

.admin-sidebar-user .user-meta .user-name {
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-sidebar-user .user-meta .user-role {
    font-size: 0.72rem;
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.sidebar-action-btns {
    display: flex;
    gap: 0.5rem;
}

.sidebar-action-btns .btn {
    flex: 1;
    font-size: 0.78rem;
    padding: 0.4rem 0.5rem;
}

/* Collapsed sidebar */
.admin-shell.is-collapsed .admin-sidebar {
    padding-inline: 0.6rem;
}

.admin-shell.is-collapsed .brand-text,
.admin-shell.is-collapsed .admin-menu a span,
.admin-shell.is-collapsed .admin-menu-group > summary span,
.admin-shell.is-collapsed .admin-menu-group > summary .toggle-arrow,
.admin-shell.is-collapsed .admin-submenu,
.admin-shell.is-collapsed .user-meta,
.admin-shell.is-collapsed .sidebar-action-btns span {
    display: none;
}

.admin-shell.is-collapsed .admin-sidebar-brand img {
    width: 38px;
    height: 38px;
}

.admin-shell.is-collapsed .admin-menu a,
.admin-shell.is-collapsed .admin-menu-group > summary {
    justify-content: center;
    padding: 0.7rem;
}

.admin-shell.is-collapsed .admin-sidebar-user {
    justify-content: center;
}

.admin-shell.is-collapsed .sidebar-action-btns {
    flex-direction: column;
}

/* ---- Main Content Area ---- */
.admin-content {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ---- Topbar ---- */
.admin-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1.4rem;
    background: #fff;
    border-bottom: 1px solid var(--admin-border);
    position: sticky;
    top: 0;
    z-index: 1040;
}

.admin-topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    min-width: 0;
}

.admin-topbar-left h1 {
    font-size: 1.15rem;
    color: var(--admin-green-dark);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-topbar-left p {
    font-size: 0.8rem;
    color: var(--admin-muted);
    margin: 0;
}

.admin-topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.btn-sidebar-toggle {
    background: none;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    padding: 0.4rem 0.6rem;
    cursor: pointer;
    color: var(--admin-muted);
    font-size: 1.1rem;
    transition: all 0.2s;
}

.btn-sidebar-toggle:hover {
    background: var(--admin-green-soft);
    color: var(--admin-green);
    border-color: var(--admin-green);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--admin-ink);
    cursor: pointer;
}

/* ---- Page Area ---- */
.admin-page {
    flex: 1;
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

/* ---- Cards ---- */
.admin-card {
    background: #fff;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 1.4rem;
    box-shadow: 0 8px 28px rgba(12,33,27,0.05);
}

.admin-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.admin-card-header h2 {
    color: var(--admin-green-dark);
}

/* ---- Stats Grid ---- */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: linear-gradient(180deg, #ffffff 0%, #f2f7f6 100%);
    border: 1px solid var(--admin-border);
    border-radius: 20px;
    padding: 1.1rem;
    text-align: center;
}

.stat-card small {
    color: var(--admin-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.75rem;
    font-weight: 600;
}

.stat-card .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    margin: 0.5rem 0 0.3rem;
    color: var(--admin-green-dark);
}

.stat-card .stat-label {
    display: block;
    font-size: 0.78rem;
    color: var(--admin-muted);
}

/* ---- Overview Grid ---- */
.admin-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.overview-card {
    border: 1px solid var(--admin-border);
    border-radius: 18px;
    background: linear-gradient(180deg, #ffffff 0%, #f7fbfa 100%);
    padding: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.overview-card h3 {
    color: var(--admin-green-dark);
    font-size: 1rem;
    margin: 0;
}

.overview-card p {
    color: var(--admin-muted);
    font-size: 0.85rem;
    margin: 0;
}

.overview-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

/* ---- Tables ---- */
.admin-table-wrap {
    overflow-x: auto;
    border-radius: 16px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 0.8rem;
    border-bottom: 1px solid var(--admin-border);
    text-align: left;
    vertical-align: top;
}

.admin-table th {
    color: var(--admin-green-dark);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 700;
    background: #f7fbfa;
}

.admin-table tbody tr:hover {
    background: #fafcfb;
}

/* ---- Status Badges ---- */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.status-badge.success { background: #e8f7f1; color: #0b5a46; }
.status-badge.danger { background: #fcecef; color: var(--admin-danger); }
.status-badge.warning { background: #fff4dd; color: var(--admin-warning); }
.status-badge.info { background: #eef6fb; color: #14567d; }

/* ---- Progress Bars ---- */
.chart-list { display: flex; flex-direction: column; gap: 0.75rem; }
.chart-list-row span { display: flex; justify-content: space-between; margin-bottom: 0.3rem; color: var(--admin-muted); font-size: 0.85rem; }
.chart-list-bar { width: 100%; height: 10px; background: #edf3f1; border-radius: 999px; overflow: hidden; }
.chart-list-fill { height: 100%; background: linear-gradient(90deg, var(--admin-green), #42a88d); border-radius: 999px; }

/* ---- Help Cards ---- */
.admin-help-list {
    display: grid;
    gap: 0.75rem;
}

.help-card {
    border: 1px solid var(--admin-border);
    border-radius: 16px;
    background: linear-gradient(180deg, #fff 0%, #f7fbfa 100%);
    padding: 1rem;
}

.help-card strong { color: var(--admin-green-dark); }
.help-card p { color: var(--admin-muted); font-size: 0.88rem; margin: 0.35rem 0 0; }

/* ---- Buttons (green accent) ---- */
.btn-admin {
    background: var(--admin-green);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-admin:hover { background: var(--admin-green-dark); color: #fff; }

.btn-outline-admin {
    background: transparent;
    color: var(--admin-green);
    border: 1.5px solid var(--admin-green);
    padding: 0.45rem 0.9rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-outline-admin:hover {
    background: var(--admin-green);
    color: #fff;
}

/* ---- Alerts ---- */
.admin-alert {
    border-radius: var(--admin-radius-sm);
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.admin-alert.success { background: #e8f7f1; color: #0b5a46; border-color: #b8e4d5; }
.admin-alert.danger { background: #fcecef; color: var(--admin-danger); border-color: #f5c6cb; }
.admin-alert.info { background: #eef6fb; color: #14567d; border-color: #b8daff; }

/* ---- Empty State ---- */
.empty-state {
    padding: 2rem;
    border-radius: 18px;
    background: #f7fbfa;
    color: var(--admin-muted);
    border: 1px dashed var(--admin-border);
    text-align: center;
}

/* ---- Login Page ---- */
.admin-login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.2rem;
    background:
        linear-gradient(135deg, rgba(13,107,87,0.94), rgba(8,72,56,0.98)),
        #084838;
}

.admin-login-card {
    width: min(440px, 100%);
    padding: 2rem;
    background: rgba(255,255,255,0.97);
    border-radius: 28px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.22);
}

.admin-login-card h1 {
    color: var(--admin-green-dark);
    font-size: 1.3rem;
}

/* ---- Responsive ---- */
@media (max-width: 991px) {
    .admin-shell {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        width: var(--admin-sidebar-width);
        transform: translateX(-100%);
        z-index: 1060;
        box-shadow: 4px 0 24px rgba(0,0,0,0.25);
    }

    .admin-sidebar.show {
        transform: translateX(0);
    }

    .mobile-menu-toggle {
        display: block;
    }

    .btn-sidebar-toggle {
        display: none;
    }

    .admin-page {
        padding: 1rem;
    }
}

@media (max-width: 767px) {
    .admin-topbar {
        padding: 0.65rem 1rem;
        flex-wrap: wrap;
    }

    .admin-topbar-right .btn-sm {
        font-size: 0.75rem;
        padding: 0.3rem 0.5rem;
    }

    .admin-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .admin-overview-grid {
        grid-template-columns: 1fr;
    }

    .admin-card {
        padding: 1rem;
        border-radius: 16px;
    }

    .stat-card .stat-value {
        font-size: 1.5rem;
    }
}

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

/* ---- Overlay for mobile sidebar ---- */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.45);
    z-index: 1055;
}

.sidebar-overlay.show {
    display: block;
}