/* ============================================
   MODERN ADMIN PANEL - CSS DESIGN SYSTEM
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
    --topbar-height: 65px;
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #0ea5e9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #8b5cf6;
    --sidebar-bg: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    --sidebar-text: #94a3b8;
    --sidebar-active: #6366f1;
    --body-bg: #f1f5f9;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--body-bg);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: var(--primary); transition: var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: none; }

/* ---- SIDEBAR ---- */
.admin-sidebar {
    position: fixed; left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    z-index: 1000;
    transition: var(--transition);
    display: flex; flex-direction: column;
    box-shadow: 4px 0 20px rgba(0,0,0,0.1);
}

.sidebar-logo {
    padding: 20px 24px;
    display: flex; align-items: center; gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    min-height: var(--topbar-height);
}
.sidebar-logo i { font-size: 24px; color: var(--primary); }
.sidebar-logo span {
    font-size: 18px; font-weight: 700; color: #fff;
    letter-spacing: -0.5px;
}

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.nav-item {
    margin-bottom: 4px;
}
.nav-link {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 16px;
    color: var(--sidebar-text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500; font-size: 13.5px;
    position: relative;
}
.nav-link i { font-size: 18px; width: 22px; text-align: center; }
.nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.06);
}
.nav-link.active {
    color: #fff;
    background: var(--sidebar-active);
    box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.sidebar-user {
    display: flex; align-items: center; gap: 10px;
    color: #cbd5e1;
    font-size: 13px;
}
.sidebar-user-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--primary);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 600; font-size: 14px;
}
.sidebar-user-info span { display: block; font-weight: 600; color: #fff; font-size: 13px; }
.sidebar-user-info small { color: var(--sidebar-text); font-size: 11px; }

/* ---- MAIN CONTENT ---- */
.admin-main {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--transition);
    display: flex; flex-direction: column;
}

/* ---- TOPBAR ---- */
.admin-topbar {
    height: var(--topbar-height);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 28px;
    position: sticky; top: 0; z-index: 100;
    box-shadow: var(--shadow-sm);
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-toggle {
    width: 38px; height: 38px; border: none; background: var(--body-bg);
    border-radius: var(--radius-sm); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: var(--text-secondary);
    transition: var(--transition);
}
.topbar-toggle:hover { background: var(--primary); color: #fff; }
.topbar-title { font-size: 16px; font-weight: 600; color: var(--text-primary); }

.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-btn {
    width: 38px; height: 38px; border: none; background: var(--body-bg);
    border-radius: 50%; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; color: var(--text-secondary);
    transition: var(--transition); position: relative;
}
.topbar-btn:hover { background: var(--primary); color: #fff; }
.topbar-user-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 12px 6px 6px;
    background: var(--body-bg); border: none; border-radius: 50px;
    cursor: pointer; transition: var(--transition);
    font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 500;
    color: var(--text-primary);
}
.topbar-user-btn:hover { background: #e2e8f0; }
.topbar-user-btn img, .topbar-user-btn .avatar-sm {
    width: 32px; height: 32px; border-radius: 50%;
}
.avatar-sm {
    background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 13px;
}

/* Dropdown */
.dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    padding: 6px;
    min-width: 180px;
}
.dropdown-item {
    padding: 8px 14px; border-radius: 6px;
    font-size: 13px; color: var(--text-primary);
    display: flex; align-items: center; gap: 8px;
}
.dropdown-item:hover { background: var(--body-bg); }
.dropdown-item i { color: var(--text-secondary); width: 18px; }

/* ---- CONTENT AREA ---- */
.admin-content { padding: 28px; flex: 1; }

/* ---- PAGE HEADER ---- */
.page-header-section {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap; gap: 12px;
}
.page-header-section h1 {
    font-size: 22px; font-weight: 700; color: var(--text-primary);
    margin: 0;
}
.breadcrumb-modern {
    display: flex; align-items: center; gap: 8px;
    list-style: none; padding: 0; margin: 0; font-size: 13px;
}
.breadcrumb-modern li { color: var(--text-muted); }
.breadcrumb-modern li a { color: var(--text-secondary); }
.breadcrumb-modern li a:hover { color: var(--primary); }
.breadcrumb-modern .sep { color: var(--text-muted); font-size: 10px; }

/* ---- CARDS ---- */
.card-modern {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    overflow: hidden;
}
.card-modern:hover { box-shadow: var(--shadow-md); }
.card-header-modern {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex; align-items: center; justify-content: space-between;
    background: var(--card-bg);
}
.card-header-modern h2 {
    font-size: 16px; font-weight: 600; color: var(--text-primary); margin: 0;
}
.card-body-modern { padding: 24px; }

/* ---- STAT CARDS ---- */
.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 22px 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex; align-items: center; gap: 18px;
    transition: var(--transition);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.stat-icon {
    width: 52px; height: 52px;
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
}
.stat-icon.bg-primary { background: rgba(99,102,241,0.12); color: var(--primary); }
.stat-icon.bg-success { background: rgba(16,185,129,0.12); color: var(--success); }
.stat-icon.bg-warning { background: rgba(245,158,11,0.12); color: var(--warning); }
.stat-icon.bg-danger { background: rgba(239,68,68,0.12); color: var(--danger); }
.stat-icon.bg-info { background: rgba(139,92,246,0.12); color: var(--info); }
.stat-info h3 { font-size: 24px; font-weight: 700; margin: 0; line-height: 1.2; }
.stat-info p { font-size: 13px; color: var(--text-secondary); margin: 0; }

/* ---- TABLES ---- */
.table-modern {
    width: 100%; border-collapse: separate; border-spacing: 0;
}
.table-modern thead th {
    background: var(--body-bg);
    padding: 12px 16px;
    font-size: 12px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.5px; color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
.table-modern tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 13.5px; color: var(--text-primary);
    vertical-align: middle;
}
.table-modern tbody tr { transition: var(--transition); }
.table-modern tbody tr:hover { background: rgba(99,102,241,0.03); }
.table-modern tbody tr:last-child td { border-bottom: none; }

/* Badges */
.badge-status {
    padding: 4px 12px; border-radius: 50px;
    font-size: 12px; font-weight: 600;
    display: inline-flex; align-items: center; gap: 5px;
}
.badge-status.active { background: rgba(16,185,129,0.12); color: #059669; }
.badge-status.passive { background: rgba(239,68,68,0.12); color: #dc2626; }
.badge-status::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: currentColor;
}

/* ---- BUTTONS ---- */
.btn-modern {
    padding: 9px 20px; border: none;
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 13px; font-weight: 600;
    cursor: pointer;
    display: inline-flex; align-items: center; gap: 8px;
    transition: var(--transition);
    text-decoration: none;
}
.btn-modern:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary-m { background: var(--primary); color: #fff; }
.btn-primary-m:hover { background: var(--primary-dark); color: #fff; }
.btn-success-m { background: var(--success); color: #fff; }
.btn-success-m:hover { background: #059669; color: #fff; }
.btn-danger-m { background: var(--danger); color: #fff; }
.btn-danger-m:hover { background: #dc2626; color: #fff; }
.btn-outline-m {
    background: transparent; color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.btn-outline-m:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm-m { padding: 6px 14px; font-size: 12px; }

/* ---- FORMS ---- */
.form-label-modern {
    font-size: 13px; font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px; display: block;
}
.form-control-modern {
    width: 100%; padding: 10px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 14px; color: var(--text-primary);
    background: var(--card-bg);
    transition: var(--transition);
}
.form-control-modern:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.form-control-modern::placeholder { color: var(--text-muted); }
select.form-control-modern { cursor: pointer; }
textarea.form-control-modern { resize: vertical; min-height: 80px; }
.form-group-modern { margin-bottom: 20px; }

/* ---- LOGIN PAGE ---- */
.login-wrapper {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #312e81 100%);
    padding: 20px;
    position: relative; overflow: hidden;
}
.login-wrapper::before {
    content: ''; position: absolute;
    width: 500px; height: 500px; border-radius: 50%;
    background: radial-gradient(circle, rgba(99,102,241,0.15), transparent 70%);
    top: -100px; right: -100px;
}
.login-wrapper::after {
    content: ''; position: absolute;
    width: 400px; height: 400px; border-radius: 50%;
    background: radial-gradient(circle, rgba(14,165,233,0.1), transparent 70%);
    bottom: -100px; left: -100px;
}
.login-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 48px 40px;
    width: 100%; max-width: 420px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.2);
    position: relative; z-index: 1;
}
.login-card h1 {
    font-size: 24px; font-weight: 700; text-align: center;
    margin-bottom: 8px; color: var(--text-primary);
}
.login-card p {
    text-align: center; color: var(--text-secondary);
    font-size: 14px; margin-bottom: 32px;
}
.login-card .form-control-modern { padding: 12px 16px; }
.login-card .btn-modern {
    width: 100%; padding: 13px; justify-content: center;
    font-size: 15px; border-radius: var(--radius);
}
.login-logo {
    text-align: center; margin-bottom: 28px;
}
.login-logo i { font-size: 40px; color: var(--primary); }
.login-error {
    background: rgba(239,68,68,0.08); color: var(--danger);
    padding: 10px 16px; border-radius: var(--radius-sm);
    font-size: 13px; text-align: center; margin-bottom: 20px;
    border: 1px solid rgba(239,68,68,0.15);
}

/* ---- FOOTER ---- */
.admin-footer {
    padding: 16px 28px;
    border-top: 1px solid var(--border-color);
    text-align: center; font-size: 12px; color: var(--text-muted);
}

/* ---- IMAGE PREVIEW ---- */
.img-preview {
    max-width: 100%; max-height: 250px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    object-fit: cover;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 991px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-sidebar.show { transform: translateX(0); }
    .admin-main { margin-left: 0; }
    .sidebar-overlay {
        position: fixed; inset: 0; background: rgba(0,0,0,0.5);
        z-index: 999; display: none;
    }
    .sidebar-overlay.show { display: block; }
}

/* Sidebar Collapse for Desktop */
@media (min-width: 992px) {
    body.sidebar-collapsed .admin-sidebar {
        width: var(--sidebar-collapsed);
    }
    body.sidebar-collapsed .admin-sidebar .sidebar-logo span,
    body.sidebar-collapsed .admin-sidebar .nav-link span,
    body.sidebar-collapsed .admin-sidebar .sidebar-user-info {
        display: none;
    }
    body.sidebar-collapsed .admin-sidebar .sidebar-logo {
        padding: 20px 0;
        justify-content: center;
    }
    body.sidebar-collapsed .admin-sidebar .nav-link {
        padding: 11px 0;
        justify-content: center;
    }
    body.sidebar-collapsed .admin-sidebar .nav-link i {
        margin: 0;
        width: auto;
    }
    body.sidebar-collapsed .admin-main {
        margin-left: var(--sidebar-collapsed);
    }
}

@media (max-width: 576px) {
    .admin-content { padding: 16px; }
    .page-header-section { flex-direction: column; align-items: flex-start; }
    .stat-card { padding: 16px; }
    .login-card { padding: 32px 24px; }
}

/* ---- ANIMATIONS ---- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.4s ease forwards; }
.fade-in-delay-1 { animation-delay: 0.1s; opacity: 0; }
.fade-in-delay-2 { animation-delay: 0.2s; opacity: 0; }
.fade-in-delay-3 { animation-delay: 0.3s; opacity: 0; }
.fade-in-delay-4 { animation-delay: 0.4s; opacity: 0; }

/* ---- CKEditor Override ---- */
.cke { border-radius: var(--radius-sm) !important; border-color: var(--border-color) !important; }