:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --secondary: #0ea5e9;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --border: #e2e8f0;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.navbar {
    background: var(--dark);
    padding: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.navbar .logo {
    color: #fff;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.navbar .logo span { color: var(--secondary); }

.navbar .nav-links { display: flex; align-items: center; gap: 8px; }

.navbar .nav-links a {
    color: #cbd5e1;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.navbar .nav-links a:hover,
.navbar .nav-links a.active { color: #fff; background: rgba(255,255,255,0.1); }

.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }

.card {
    background: #fff;
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

textarea.form-control { min-height: 100px; resize: vertical; }

.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-success { background: #dcfce7; color: #166534; border-left: 4px solid var(--success); }
.alert-error { background: #fee2e2; color: #991b1b; border-left: 4px solid var(--danger); }
.alert-warning { background: #fef3c7; color: #92400e; border-left: 4px solid var(--warning); }

.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    background: var(--light);
    font-weight: 600;
    color: var(--dark);
}

.table tr:hover { background: #f9fafb; }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-secondary { background: #f1f5f9; color: #475569; }

.pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 24px;
}

.pagination a,
.pagination span {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
}

.pagination a:hover { background: var(--light); }
.pagination .active { background: var(--primary); color: #fff; border-color: var(--primary); }

.main-content { padding: 40px 0; min-height: calc(100vh - 64px); }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h1 { font-size: 2rem; color: var(--dark); }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.auth-card {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 420px;
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--dark);
}

.text-center { text-align: center; }
.mt-3 { margin-top: 16px; }
.mb-3 { margin-bottom: 16px; }
.text-muted { color: var(--gray); }

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.hero h1 { font-size: 2.5rem; margin-bottom: 16px; }
.hero p { font-size: 1.2rem; opacity: 0.9; margin-bottom: 30px; }

.job-card {
    background: #fff;
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.job-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.job-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.job-card .meta { color: var(--gray); font-size: 0.85rem; margin-bottom: 12px; }
.job-card .budget { font-size: 1.1rem; font-weight: 600; color: var(--primary); }

.stat-card {
    background: #fff;
    border-radius: 8px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.stat-card .number { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-card .label { color: var(--gray); font-size: 0.9rem; }

.filter-bar {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.filter-bar form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: end;
}

.filter-bar .form-group { margin-bottom: 0; flex: 1; min-width: 150px; }

.detail-section { margin-bottom: 24px; }
.detail-section h3 { margin-bottom: 12px; color: var(--dark); }

.footer {
    background: var(--dark);
    color: #94a3b8;
    padding: 30px 0;
    text-align: center;
    font-size: 0.9rem;
}

.admin-sidebar {
    background: var(--dark);
    width: 250px;
    min-height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    padding-top: 20px;
}

.admin-sidebar .logo {
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar .logo span { color: var(--secondary); }

.admin-sidebar .nav-menu { list-style: none; padding: 20px 0; }

.admin-sidebar .nav-menu a {
    display: block;
    color: #94a3b8;
    padding: 12px 20px;
    transition: all 0.2s;
}

.admin-sidebar .nav-menu a:hover,
.admin-sidebar .nav-menu a.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.admin-main { margin-left: 250px; padding: 30px; }

.btn-sm { padding: 6px 12px; font-size: 0.85rem; }

select.form-control { appearance: auto; }

.actions { display: flex; gap: 8px; }

@media (max-width: 768px) {
    .navbar .container { flex-direction: column; height: auto; padding: 12px 20px; gap: 12px; }
    .navbar .nav-links { flex-wrap: wrap; justify-content: center; }
    .hero h1 { font-size: 1.8rem; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .admin-sidebar { display: none; }
    .admin-main { margin-left: 0; }
    .filter-bar form { flex-direction: column; }
    .page-header { flex-direction: column; gap: 12px; align-items: flex-start; }
    .table { font-size: 0.85rem; }
    .table th, .table td { padding: 8px; }
}