/* ===== Admin Page Styles ===== */
:root {
    --sidebar-width: 160px;
    --sidebar-bg: #0D2137;
    --sidebar-stripe: #2ECC40;
    --page-bg: #F0F0F0;
    --card-bg: #FFFFFF;
    --title-color: #0D2137;
    --primary: #2E6DA4;
    --highlight: #1A73E8;
    --table-header: #1B4F72;
    --green: #1D8348;
    --red: #E74C3C;
    --amber: #F5A623;
    --active-filter: #E8771E;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--page-bg);
    min-height: 100vh;
}

/* ===== Sidebar (same as dashboard) ===== */
.sidebar {
    background: var(--sidebar-bg);
    position: fixed;
    top: 0; left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    display: flex;
    z-index: 100;
}
.sidebar-green-stripe {
    width: 6px;
    background: var(--sidebar-stripe);
    flex-shrink: 0;
}
.sidebar-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 8px;
    gap: 16px;
}
.sidebar-logo {
    width: 130px; height: 130px;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.logo-img {
    width: 130px; height: 130px;
    object-fit: contain;
}
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    padding: 0 8px;
    margin-top: 20px;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    border-radius: 8px;
    font-size: 13px;
    transition: background 0.2s, color 0.2s;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}
.sidebar-nav a i {
    width: 20px;
    text-align: center;
    font-size: 15px;
}

/* ===== Main Content ===== */
.admin-main {
    margin-left: var(--sidebar-width);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* ===== Header ===== */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.admin-header h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--title-color);
}
.back-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 6px;
    background: var(--card-bg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: background 0.2s;
}
.back-link:hover {
    background: #e8f0fe;
}

/* ===== Tab Bar ===== */
.tab-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
    background: var(--card-bg);
    padding: 4px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.tab {
    padding: 8px 18px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: #666;
    border-radius: 6px;
    transition: all 0.2s;
}
.tab:hover {
    background: #f0f0f0;
    color: #333;
}
.tab.active {
    background: var(--primary);
    color: #fff;
}

/* ===== Toolbar ===== */
.admin-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    background: var(--card-bg);
    padding: 10px 16px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    flex-wrap: wrap;
}
.admin-toolbar button {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid #ccc;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: #333;
    transition: all 0.2s;
}
.admin-toolbar button:hover {
    background: #f5f5f5;
    border-color: #999;
}
.admin-toolbar button i {
    font-size: 13px;
}
#btn-save {
    background: var(--green);
    color: #fff;
    border-color: var(--green);
}
#btn-save:hover {
    background: #166b3a;
}
#btn-save.has-changes {
    animation: pulse-save 1.5s infinite;
}
@keyframes pulse-save {
    0%, 100% { box-shadow: 0 0 0 0 rgba(29, 131, 72, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(29, 131, 72, 0); }
}
#btn-delete-selected {
    color: var(--red);
    border-color: var(--red);
}
#btn-delete-selected:hover {
    background: #fdf0f0;
}
#btn-upload {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
#btn-upload:hover {
    background: #245a8a;
}
.admin-toolbar select {
    padding: 7px 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 13px;
    background: #fff;
    cursor: pointer;
}
.separator {
    width: 1px;
    height: 28px;
    background: #ddd;
    margin: 0 6px;
}
.status-msg {
    font-size: 13px;
    font-weight: 600;
    margin-left: 8px;
}
.status-msg.success { color: var(--green); }
.status-msg.error { color: var(--red); }
.status-msg.info { color: var(--primary); }
.row-count {
    margin-left: auto;
    font-size: 13px;
    color: #888;
    font-weight: 600;
}

/* ===== Grid Container ===== */
#grid-container {
    flex: 1;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

/* AG Grid Overrides */
.ag-theme-alpine {
    --ag-header-background-color: var(--table-header);
    --ag-header-foreground-color: #fff;
    --ag-header-cell-hover-background-color: #2a6a96;
    --ag-row-hover-color: #e8f0fe;
    --ag-selected-row-background-color: #d5e8f7;
    --ag-font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --ag-font-size: 13px;
}
.ag-theme-alpine .ag-header-cell-label {
    font-weight: 700;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
.loading-overlay.hidden { display: none; }
.loading-spinner {
    background: #fff;
    padding: 24px 40px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--title-color);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}