* {
    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, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo h1 {
    font-size: 32px;
    font-weight: 700;
    color: #00bfff;
    margin-bottom: 5px;
}

.logo p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

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

.form-group input {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #ffffff;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus {
    outline: none;
    border-color: #00bfff;
    background: rgba(255, 255, 255, 0.15);
}

.btn-primary {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #00bfff 0%, #0080ff 100%);
    border: none;
    border-radius: 10px;
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 191, 255, 0.4);
}

.error-message {
    display: none;
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.5);
    color: #ff3b30;
    padding: 10px;
    border-radius: 5px;
    margin-top: 15px;
    text-align: center;
    font-size: 14px;
}

.footer-text {
    text-align: center;
    margin-top: 30px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

/* Chat page styles */
.chat-container {
    display: flex;
    height: 100vh;
    background: #1a1a2e;
}

.sidebar {
    width: 280px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.user-info {
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin-bottom: 20px;
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.message {
    margin-bottom: 20px;
    display: flex;
    align-items: start;
    gap: 10px;
}

.message.user {
    justify-content: flex-end;
}

.message-content {
    max-width: 70%;
    padding: 15px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
}

.message.user .message-content {
    background: linear-gradient(135deg, #00bfff 0%, #0080ff 100%);
}

.chat-input-container {
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-input-form {
    display: flex;
    gap: 10px;
}

.chat-input {
    flex: 1;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #ffffff;
    font-size: 16px;
}

.send-button {
    padding: 15px 30px;
    background: linear-gradient(135deg, #00bfff 0%, #0080ff 100%);
    border: none;
    border-radius: 10px;
    color: #ffffff;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.menu-item {
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 10px;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.2);
}