/* Requisition Management System - Mobile First CSS */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    font-size: 16px;
}

/* Container */
.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 10px;
}

/* Header */
.header {
    background-color: #2c3e50;
    color: white;
    padding: 15px 10px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 5px;
}

.user-info {
    font-size: 14px;
    text-align: right;
}

.logout-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    margin-top: 5px;
    cursor: pointer;
    font-size: 14px;
}

/* Navigation */
.nav {
    background-color: #34495e;
    padding: 10px;
}

.nav-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
}

.nav-item {
    flex: 1;
    min-width: 120px;
}

.nav-link {
    display: block;
    color: white;
    text-decoration: none;
    padding: 12px 8px;
    background-color: #3498db;
    border-radius: 6px;
    text-align: center;
    font-size: 14px;
    transition: background-color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    background-color: #2980b9;
}

/* Main Content */
.main-content {
    padding: 20px 10px;
    min-height: calc(100vh - 140px);
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card-header {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 8px;
}

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

.form-label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #555;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 120px;
    margin: 5px;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-success {
    background-color: #27ae60;
    color: white;
}

.btn-success:hover {
    background-color: #229954;
}

.btn-warning {
    background-color: #f39c12;
    color: white;
}

.btn-warning:hover {
    background-color: #e67e22;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-full {
    width: 100%;
    margin: 10px 0;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: 15px 0;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    font-size: 14px;
}

.table th,
.table td {
    padding: 12px 8px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
    position: sticky;
    top: 0;
}

.table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.table tr:hover {
    background-color: #e8f4fd;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-approved {
    background-color: #d4edda;
    color: #155724;
}

.status-rejected {
    background-color: #f8d7da;
    color: #721c24;
}

.status-issued {
    background-color: #d1ecf1;
    color: #0c5460;
}

.status-partially-issued {
    background-color: #e2e3e5;
    color: #383d41;
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.stat-card {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.stat-number {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

/* Alerts */
.alert {
    padding: 15px;
    margin: 15px 0;
    border-radius: 6px;
    font-weight: 500;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid #ffc107;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid #17a2b8;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-title {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.login-subtitle {
    color: #7f8c8d;
    font-size: 14px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 20px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.modal-header {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ddd;
}

.modal-close {
    position: absolute;
    right: 15px;
    top: 15px;
    font-size: 24px;
    cursor: pointer;
    color: #999;
}

.modal-close:hover {
    color: #333;
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (min-width: 768px) {
    .container {
        max-width: 1200px;
        padding: 20px;
    }
    
    .header-content {
        flex-wrap: nowrap;
    }
    
    .logo {
        font-size: 24px;
        margin-bottom: 0;
    }
    
    .nav-menu {
        flex-wrap: nowrap;
    }
    
    .nav-item {
        flex: none;
        min-width: auto;
    }
    
    .table {
        font-size: 16px;
    }
    
    .modal-content {
        margin: 5% auto;
        width: 70%;
    }
}

@media (min-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.p-10 { padding: 10px; }
.p-20 { padding: 20px; }
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-10 { gap: 10px; }
.w-full { width: 100%; }
.font-bold { font-weight: bold; }
.text-small { font-size: 14px; }
.text-large { font-size: 18px; }

/* Print Styles */
@media print {
    .header, .nav, .btn, .modal {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
        margin-bottom: 10px;
    }
}

/* Receiving Notes Specific Styles */
.receiving-note-content {
    white-space: pre-line;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
}

.receiving-note-status {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
}

.receiving-note-status.pending {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.receiving-note-status.accepted {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.receiving-note-status.rejected {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.overdue-highlight {
    background-color: #fff5f5 !important;
    border-left: 4px solid #e74c3c !important;
}

.pending-highlight {
    background-color: #fff9e6 !important;
    border-left: 4px solid #f39c12 !important;
}

.notification-badge {
    background: #e74c3c;
    color: white;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 11px;
    font-weight: bold;
    margin-left: 5px;
}

/* Mobile responsiveness for receiving notes */
@media (max-width: 768px) {
    .receiving-note-actions {
        display: flex;
        flex-direction: column;
        gap: 5px;
    }
    
    .receiving-note-actions .btn {
        width: 100%;
        text-align: center;
    }
}