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

:root {
    --primary-color: #4CAF50;
    --secondary-color: #2196F3;
    --danger-color: #f44336;
    --warning-color: #ff9800;
    --dark-bg: #1a1a1a;
    --card-bg: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #404040;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: var(--text-primary);
    min-height: 100vh;
}

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

.login-box {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 10px;
    font-size: 2em;
}

.login-box h2 {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.5em;
}

/* Dashboard */
.navbar {
    background: var(--card-bg);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-brand h1 {
    font-size: 1.5em;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

.container {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
}

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

/* Server Grid */
.servers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 50px;
}

.server-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.server-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.server-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
}

.server-header h3 {
    font-size: 1.3em;
    color: var(--primary-color);
}

.server-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: bold;
}

.status-running {
    background: rgba(76, 175, 80, 0.2);
    color: var(--primary-color);
}

.status-stopped {
    background: rgba(244, 67, 54, 0.2);
    color: var(--danger-color);
}

.status-created {
    background: rgba(255, 152, 0, 0.2);
    color: var(--warning-color);
}

.server-info {
    margin-bottom: 15px;
}

.server-info-item {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    color: var(--text-secondary);
    font-size: 0.9em;
}

.server-info-item strong {
    color: var(--text-primary);
}

.server-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 600;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #45a049;
}

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

.btn-secondary:hover {
    background: #1976D2;
}

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

.btn-danger:hover {
    background: #da190b;
}

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

.btn-warning:hover {
    background: #e68900;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.9em;
}

.btn-info {
    background: var(--secondary-color);
}

.btn-info:hover {
    background: #1976D2;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 12px;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1em;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    overflow-y: auto;
}

.modal-content {
    background: var(--card-bg);
    margin: 50px auto;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    position: relative;
}

.modal-large {
    max-width: 900px;
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.close:hover {
    color: var(--text-primary);
}

/* Member Management Styles */
.members-section,
.add-members-section {
    margin-bottom: 30px;
}

.members-section h3,
.add-members-section h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2em;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.members-list,
.available-users-list {
    max-height: 400px;
    overflow-y: auto;
    padding: 10px 0;
}

.member-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
}

.member-info {
    flex: 1;
}

.member-name {
    font-size: 1.1em;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.member-details {
    font-size: 0.9em;
    color: var(--text-secondary);
    line-height: 1.5;
}

.available-user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.2s;
}

.available-user-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
}

.user-info {
    flex: 1;
}

.user-selection-container {
    margin-top: 10px;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
    font-style: italic;
}

.info-message {
    background: rgba(33, 150, 243, 0.1);
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: 15px;
    border-radius: 8px;
    margin: 10px 0;
    text-align: center;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-admin {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.badge-owner {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

/* Admin Section */
.admin-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    margin-top: 40px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.admin-section h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.admin-actions {
    margin-bottom: 20px;
}

.admin-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.data-list {
    margin-top: 20px;
}

.data-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
}

/* Loading and Messages */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-style: italic;
}

.error-message {
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    padding: 15px;
    border-radius: 8px;
    margin: 10px 0;
}

.success-message {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 15px;
    border-radius: 8px;
    margin: 10px 0;
}

/* Responsive */
@media (max-width: 768px) {
    .servers-grid {
        grid-template-columns: 1fr;
    }

    .navbar {
        flex-direction: column;
        gap: 15px;
    }

    .header-actions {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .server-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .member-item {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .available-user-item {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
}