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

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
    z-index: 10;
    position: relative;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 40px 35px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.8s ease-out;
}

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

.logo-section {
    text-align: center;
    margin-bottom: 35px;
}

.logo {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    object-fit: cover;
    margin-bottom: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-section h1 {
    font-size: 28px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: #7f8c8d;
    font-size: 16px;
    font-weight: 400;
}

.login-form {
    margin-bottom: 30px;
}

.alert {
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    animation: fadeIn 0.5s ease;
}

.alert-error {
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.2);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #bdc3c7;
    font-size: 16px;
    z-index: 2;
}

.input-group input {
    width: 100%;
    padding: 16px 16px 16px 50px;
    border: 2px solid #ecf0f1;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 400;
    background: #fff;
    transition: all 0.3s ease;
    outline: none;
}

.input-group input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-group input:focus + i {
    color: #667eea;
}

.login-btn, .chatbot-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
    text-decoration: none;
}

.login-btn:hover, .chatbot-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.login-btn:active, .chatbot-btn:active {
    transform: translateY(0);
}

.welcome-actions {
    margin-bottom: 30px;
}

.logout-btn {
    width: 100%;
    padding: 12px;
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 2px solid rgba(231, 76, 60, 0.2);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    margin-bottom: 25px;
}

.logout-btn:hover {
    background: rgba(231, 76, 60, 0.15);
    border-color: rgba(231, 76, 60, 0.3);
    transform: translateY(-1px);
}

.demo-credentials {
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.2);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    margin-bottom: 25px;
}

.demo-credentials p {
    margin-bottom: 5px;
    font-size: 14px;
    color: #34495e;
}

.demo-credentials code {
    background: rgba(52, 152, 219, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 13px;
    color: #2980b9;
}

.features {
    display: flex;
    justify-content: space-around;
    gap: 15px;
}

.feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #7f8c8d;
    font-size: 13px;
    font-weight: 500;
}

.feature i {
    font-size: 20px;
    color: #667eea;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-element {
    position: absolute;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.3;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .login-card {
        padding: 30px 25px;
    }
    
    .logo-section h1 {
        font-size: 24px;
    }
    
    .features {
        flex-direction: column;
        gap: 10px;
    }
    
    .feature {
        flex-direction: row;
        justify-content: center;
    }
}