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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

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

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1.1em;
    opacity: 0.9;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.card h2 {
    margin-bottom: 20px;
    color: #667eea;
}

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

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

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

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

.form-group small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 0.9em;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.error-message {
    background: #fee;
    color: #c33;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid #c33;
}

.error-message.ip-blocked {
    background: #fff3cd;
    color: #856404;
    border-left: 4px solid #ffc107;
    white-space: pre-line;
}

.status-info {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.status-badge {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #28a745;
    display: inline-block;
}

.messages-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    display: inline-block;
}

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

.thread {
    margin-bottom: 30px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.thread-header {
    background: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.thread-header h3 {
    margin: 0;
    color: #333;
    font-size: 1.2em;
}

.thread-info {
    color: #666;
    font-size: 0.9em;
}

.messages-list {
    padding: 20px;
    max-height: 500px;
    overflow-y: auto;
}

.message {
    margin-bottom: 15px;
    padding: 12px;
    border-radius: 8px;
    max-width: 80%;
}

.message.sent {
    background: #667eea;
    color: white;
    margin-left: auto;
    text-align: right;
}

.message.received {
    background: #f0f0f0;
    color: #333;
}

.message-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 0.85em;
    opacity: 0.8;
}

.message-username {
    font-weight: 600;
}

.message-time {
    font-size: 0.9em;
}

.message-text {
    word-wrap: break-word;
    line-height: 1.5;
}

.no-messages {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 1.1em;
}

.thread.last-from-me {
    border-left: 4px solid #667eea;
    background: #f8f9ff;
}

.thread-detail-view {
    display: none;
}

.thread-detail-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
}

.thread-detail-header h2 {
    margin: 0;
    color: #667eea;
}

.thread-messages-container {
    max-height: 600px;
    overflow-y: auto;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    margin-bottom: 20px;
}

.thread-header:hover {
    background: #f5f5f5;
    transition: background 0.2s;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 600;
    margin-left: 10px;
}

.status-indicator {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.9em;
    font-weight: 600;
    background: #f0f0f0;
    color: #666;
}

.auto-reply-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 2em;
    }
    
    .card {
        padding: 20px;
    }
    
    .message {
        max-width: 95%;
    }
    
    .messages-header {
        flex-direction: column;
        align-items: stretch;
    }
}