* {
    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;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-box {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

h1 {
    font-size: 28px;
    color: #1a202c;
    margin-bottom: 8px;
    text-align: center;
}

.subtitle {
    color: #718096;
    text-align: center;
    margin-bottom: 32px;
    font-size: 14px;
}

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

label {
    display: block;
    color: #2d3748;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.2s;
}

input[type="email"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: #667eea;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: #4a5568;
}

.remember-me input {
    margin-right: 8px;
    cursor: pointer;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.forgot-password:hover {
    text-decoration: underline;
}

.login-btn {
    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: transform 0.2s, box-shadow 0.2s;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.4);
}

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

.error-message {
    margin-top: 16px;
    padding: 12px;
    background: #fed7d7;
    color: #c53030;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
}

.success-message {
    margin-top: 16px;
    padding: 12px;
    background: #c6f6d5;
    color: #22543d;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
}

.divider {
    display: flex;
    align-items: center;
    margin: 32px 0;
    color: #a0aec0;
    font-size: 14px;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e2e8f0;
}

.divider span {
    padding: 0 16px;
}

.social-login {
    margin-bottom: 24px;
}

.social-btn {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: background 0.2s, border-color 0.2s;
}

.social-btn:hover {
    background: #f7fafc;
    border-color: #cbd5e0;
}

.signup-link {
    text-align: center;
    color: #4a5568;
    font-size: 14px;
    margin-top: 24px;
}

.signup-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

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

.back-home {
    text-align: center;
    margin-top: 16px;
}

.back-home a {
    color: #718096;
    text-decoration: none;
    font-size: 14px;
}

.back-home a:hover {
    color: #667eea;
}

@media (max-width: 480px) {
    .login-box {
        padding: 30px 24px;
    }
    
    h1 {
        font-size: 24px;
    }
}