/* css/custom.css */

/* ============================================
   VARIABLES & RESET
============================================ */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
    --border-radius: 10px;
    --box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* ============================================
   UTILITY CLASSES
============================================ */
.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-danger { color: var(--danger-color) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }

.rounded-lg { border-radius: var(--border-radius) !important; }
.shadow { box-shadow: var(--box-shadow) !important; }

/* ============================================
   NAVBAR CUSTOM
============================================ */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-brand i {
    color: var(--secondary-color);
}

.navbar-dark-custom {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* ============================================
   CARD STYLES
============================================ */
.tender-card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.tender-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.card-header-custom {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    padding: 1rem 1.25rem;
    border-bottom: none;
}

/* ============================================
   BADGE STYLES
============================================ */
.badge-tender {
    padding: 0.5em 1em;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.85em;
}

.badge-open {
    background-color: var(--success-color);
    color: white;
}

.badge-closed {
    background-color: var(--danger-color);
    color: white;
}

.badge-evaluation {
    background-color: var(--warning-color);
    color: white;
}

.badge-draft {
    background-color: #6c757d;
    color: white;
}

/* ============================================
   STATS CARDS
============================================ */
.stat-card {
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    color: white;
    margin-bottom: 1rem;
    box-shadow: var(--box-shadow);
}

.stat-card-1 { 
    background: linear-gradient(135deg, #3498db, #2c3e50); 
}
.stat-card-2 { 
    background: linear-gradient(135deg, #27ae60, #2ecc71); 
}
.stat-card-3 { 
    background: linear-gradient(135deg, #f39c12, #e74c3c); 
}
.stat-card-4 { 
    background: linear-gradient(135deg, #9b59b6, #8e44ad); 
}
.stat-card-5 { 
    background: linear-gradient(135deg, #1abc9c, #16a085); 
}
.stat-card-6 { 
    background: linear-gradient(135deg, #34495e, #2c3e50); 
}

.stat-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.stat-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card p {
    margin-bottom: 0;
    opacity: 0.9;
}

/* ============================================
   BUTTON STYLES
============================================ */
.btn-tender {
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 25px;
    padding: 0.5rem 2rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-tender:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn-bid {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
    border: none;
    border-radius: 25px;
    padding: 0.5rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-bid:hover {
    background: linear-gradient(135deg, #219653, #27ae60);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

.btn-outline-tender {
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    background: transparent;
    border-radius: 25px;
    padding: 0.5rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-tender:hover {
    background: var(--secondary-color);
    color: white;
}

/* ============================================
   FORM STYLES
============================================ */
.form-control-custom {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: var(--transition);
    font-size: 1rem;
}

.form-control-custom:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
    outline: none;
}

.form-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* ============================================
   TABLE STYLES
============================================ */
.table-tender {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    margin-bottom: 0;
}

.table-tender thead {
    background: var(--primary-color);
    color: white;
}

.table-tender th {
    border: none;
    padding: 1rem;
    font-weight: 600;
}

.table-tender td {
    padding: 1rem;
    vertical-align: middle;
    border-color: #f1f1f1;
}

.table-tender tbody tr:hover {
    background-color: rgba(52, 152, 219, 0.05);
}

/* ============================================
   ALERT & NOTIFICATION
============================================ */
.alert-notification {
    border-radius: var(--border-radius);
    border-left: 5px solid var(--secondary-color);
    background: white;
    box-shadow: var(--box-shadow);
    padding: 1rem 1.25rem;
}

.alert-notification h6 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.toast-custom {
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

/* ============================================
   FOOTER STYLES
============================================ */
.footer {
    background: var(--primary-color);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer h5 {
    color: white;
    margin-bottom: 1rem;
}

.footer a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer a:hover {
    color: white;
    text-decoration: underline;
}

/* ============================================
   LOGIN PAGE STYLES
============================================ */
.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card {
    max-width: 400px;
    width: 100%;
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 2rem;
    text-align: center;
}

.login-header h3 {
    margin-bottom: 0.5rem;
}

.login-header p {
    opacity: 0.9;
    margin-bottom: 0;
}

.login-body {
    padding: 2rem;
    background: white;
}

/* ============================================
   DASHBOARD SPECIFIC
============================================ */
.welcome-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
}

.quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

/* ============================================
   RESPONSIVE DESIGN
============================================ */
@media (max-width: 768px) {
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .tender-card {
        margin-bottom: 1rem;
    }
    
    .welcome-banner {
        padding: 1.5rem;
    }
    
    .login-container {
        padding: 1rem;
    }
    
    .table-responsive {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .btn-tender, .btn-bid {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .d-flex.justify-content-between {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-card h3 {
        font-size: 1.5rem;
    }
}

/* ============================================
   ANIMATIONS
============================================ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* ============================================
   SCROLLBAR CUSTOM
============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}