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

html, body {
    font-family: "Roboto", "Trebuchet MS", Helvetica, sans-serif;
    height: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 104, 1, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 104, 1, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.login-box {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 35px;
}

.login-header h1 {
    color: #ff6801;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.login-header h1 i {
    font-size: 36px;
}

.login-header p {
    color: #666;
    font-size: 14px;
    font-weight: 400;
}

.login-form {
    margin-bottom: 25px;
}

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

.form-group label {
    display: block;
    color: #333;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group label i {
    color: #ff6801;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s;
    background-color: #fff;
    color: #333;
}

.form-group input:focus {
    outline: none;
    border-color: #ff6801;
    box-shadow: 0 0 0 3px rgba(255, 104, 1, 0.1);
}

.form-group input::placeholder {
    color: #999;
}

.error-message {
    background-color: #ffebee;
    border: 1px solid #f44336;
    border-radius: 6px;
    padding: 12px 15px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #d32f2f;
    font-size: 13px;
    animation: shake 0.4s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.error-message i {
    font-size: 16px;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #ff6801 0%, #e55a00 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(255, 104, 1, 0.3);
}

.btn-login:hover:not(:disabled) {
    background: linear-gradient(135deg, #e55a00 0%, #ff6801 100%);
    box-shadow: 0 6px 20px rgba(255, 104, 1, 0.4);
    transform: translateY(-2px);
}

.btn-login:active:not(:disabled) {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.login-footer {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid #e0e0e0;
}

.login-footer p {
    color: #666;
    font-size: 12px;
    margin-bottom: 8px;
}

.login-footer .credentials {
    background-color: #f8f9fa;
    padding: 12px;
    border-radius: 6px;
    margin-top: 12px;
    font-size: 11px;
    line-height: 1.6;
    color: #555;
}

.login-footer .credentials strong {
    color: #333;
    font-weight: 600;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .login-box {
        padding: 30px 25px;
        margin: 10px;
    }
    
    .login-header h1 {
        font-size: 28px;
    }
    
    .login-header h1 i {
        font-size: 32px;
    }
    
    .form-group input {
        padding: 10px 12px;
        font-size: 16px; /* Prevent zoom on iOS */
    }
}