/* SMS Cluster Monitoring and Controlling System - Styles */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

/* Landing Page Styles */
.landing-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    padding: 20px;
    position: relative;
}

.login-btn-top {
    position: absolute;
    top: 30px;
    right: 30px;
}

.login-btn-top a {
    background-color: #fff;
    color: #667eea;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    font-size: 16px;
}

.login-btn-top a:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    background-color: #f0f0f0;
}

.main-title {
    color: #fff;
    font-size: 3.5em;
    font-weight: 700;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
    max-width: 1200px;
    line-height: 1.3;
    animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Login Page Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background-color: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-box h2 {
    text-align: center;
    color: #667eea;
    margin-bottom: 30px;
    font-size: 28px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.error-message {
    background-color: #fee;
    color: #c33;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid #fcc;
}

.success-message {
    background-color: #efe;
    color: #3c3;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid #cfc;
}

.back-link {
    text-align: center;
    margin-top: 20px;
}

.back-link a {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
}

.back-link a:hover {
    text-decoration: underline;
}

/* Dashboard Styles */
.dashboard-container {
    min-height: 100vh;
    background: #f5f5f5;
}

.dashboard-with-sidebar {
    display: flex;
    min-height: 100vh;
    background: #f5f5f5;
}

/* Sidebar Navigation */
.sidebar {
    width: 260px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: fixed;
    height: 100vh;
    top: 0;
    left: 0;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    z-index: 100;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    flex-shrink: 0;
}

.sidebar-brand {
    font-size: 20px;
    font-weight: 700;
    color: white;
    margin-bottom: 10px;
}

.sidebar-user {
    font-size: 14px;
    color: rgba(255,255,255,0.9);
    margin-top: 5px;
}

.sidebar-user-role {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
}

.sidebar-menu {
    padding: 20px 0;
    flex: 1;
    overflow-y: auto;
}

.menu-section {
    margin-bottom: 25px;
}

.menu-section-title {
    padding: 10px 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 5px;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.menu-item:hover {
    background-color: rgba(255,255,255,0.1);
    border-left-color: white;
}

.menu-item.active {
    background-color: rgba(255,255,255,0.15);
    border-left-color: white;
    font-weight: 600;
}

.menu-item-icon {
    width: 20px;
    margin-right: 12px;
    font-size: 18px;
}

.menu-item-text {
    flex: 1;
}

.menu-item-badge {
    background-color: rgba(255,255,255,0.2);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    flex-shrink: 0;
    margin-top: auto;
}

.sidebar-logout {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: rgba(255,255,255,0.2);
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.sidebar-logout:hover {
    background-color: rgba(255,255,255,0.3);
}

/* Main Content with Sidebar */
.main-content-with-sidebar {
    margin-left: 260px;
    flex: 1;
    width: calc(100% - 260px);
}

.top-navbar {
    background-color: white;
    padding: 15px 30px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-title {
    font-size: 24px;
    color: #333;
    font-weight: 600;
    margin: 0;
}

.navbar {
    background-color: #fff;
    padding: 15px 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 20px;
    font-weight: 700;
    color: #667eea;
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 20px;
}

.navbar-user span {
    color: #555;
    font-weight: 600;
}

.btn-logout {
    background-color: #ff4757;
    color: white;
    padding: 8px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background-color: #e84118;
}

.dashboard-content {
    padding: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.dashboard-header {
    margin-bottom: 30px;
}

.dashboard-header h1 {
    color: #333;
    font-size: 32px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: white;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card h3 {
    color: #888;
    font-size: 13px;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: #667eea;
}

.content-card {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

.content-card h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 24px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th {
    background-color: #f8f9fa;
    padding: 12px;
    text-align: left;
    color: #555;
    font-weight: 600;
    border-bottom: 2px solid #e0e0e0;
}

table td {
    padding: 12px;
    border-bottom: 1px solid #f0f0f0;
}

table tr:hover {
    background-color: #f8f9fa;
}

.btn-action {
    padding: 6px 15px;
    margin-right: 5px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
}

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

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

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

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

.btn-view {
    background-color: #2ecc71;
    color: white;
}

.btn-view:hover {
    background-color: #27ae60;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.status-badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

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

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .main-title {
        font-size: 2em;
    }
    
    .login-btn-top {
        top: 20px;
        right: 20px;
    }
    
    .dashboard-content {
        padding: 15px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Sidebar responsive */
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content-with-sidebar {
        margin-left: 0;
        width: 100%;
    }
    
    .sidebar-footer {
        position: relative;
    }
}