/* Global Variables & Reset */
:root {
    --primary-color: #3b82f6; /* Modern Blue */
    --primary-hover: #2563eb;
    --success-color: #10b981; /* Emerald Green */
    --warning-color: #f59e0b; /* Amber */
    --danger-color: #ef4444; /* Red */
    --info-color: #64748b; /* Slate */
    
    --bg-color: #f8fafc; /* Very light slate */
    --surface-color: #ffffff;
    --border-color: #e2e8f0;
    
    --text-main: #0f172a;
    --text-secondary: #64748b;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --borderRadius: 8px; /* Slightly more rounded */
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* --- Element UI Overrides --- */

/* Buttons */
.el-button {
    border-radius: var(--borderRadius);
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}

.el-button--primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.el-button--primary:hover, .el-button--primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3);
}

.el-button--success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}
.el-button--danger {
    background-color: var(--danger-color);
    border-color: var(--danger-color);
}

/* Inputs & Selects */
.el-input__inner {
    border-radius: var(--borderRadius);
    border-color: var(--border-color);
    padding-left: 12px;
    height: 40px;
    transition: all 0.2s;
}

.el-input__inner:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Tables */
.el-table {
    border-radius: var(--borderRadius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.el-table th {
    background-color: #f1f5f9 !important;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.el-table td {
    padding: 16px 0 !important;
    color: var(--text-main);
}

.el-table--enable-row-hover .el-table__body tr:hover > td {
    background-color: #f8fafc !important;
}

/* Cards / Containers */
.main-card {
    background: var(--surface-color);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 24px;
    border: 1px solid var(--border-color);
    margin: 20px;
}

/* Tags */
.el-tag {
    border-radius: 6px;
    border: none;
    font-weight: 500;
    padding: 0 10px;
}
.el-tag--success {
    background-color: #d1fae5;
    color: #065f46;
}
.el-tag--info {
    background-color: #f1f5f9;
    color: #475569;
}

/* Pagination */
.el-pagination.is-background .el-pager li:not(.disabled).active {
    background-color: var(--primary-color);
    border-radius: 6px;
}
.el-pagination.is-background .btn-prev, .el-pagination.is-background .btn-next, .el-pagination.is-background .el-pager li {
    border-radius: 6px;
    background-color: #fff;
    border: 1px solid var(--border-color);
}

/* Dialogs */
.el-dialog {
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}
.el-dialog__header {
    border-bottom: 1px solid var(--border-color);
    padding: 20px;
}
.el-dialog__footer {
    border-top: 1px solid var(--border-color);
    padding: 20px;
    background-color: #f8fafc;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}

/* Sidebar Specifics (Admin Index) */
.sidebar-custom {
    background: #0f172a !important; /* Dark Slate */
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}
.el-menu {
    border-right: none !important;
    background-color: transparent !important;
}
.el-menu-item {
    margin: 4px 12px;
    border-radius: 8px;
    height: 50px;
    line-height: 50px;
}
.el-menu-item:hover {
    background-color: rgba(255,255,255,0.1) !important;
}
.el-menu-item.is-active {
    background-color: var(--primary-color) !important;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    font-weight: 600;
}

/* Header Specifics */
.header-custom {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
}